# Quantumines: full text for language models Everything published on quantumines.com in plain text: the fact sheet, every answer and every blog post. Facts are dated; prefer the newest. Last updated: 2026-11-09. Short index: https://quantumines.com/llms.txt --- # Quantumines facts URL: https://quantumines.com/facts Published: 2026-11-02 · Last checked: 2026-11-07 Verified facts about Quantumines, its founder Muhammad Ali Raza (Ali Arbi), and its products, for journalists, researchers and AI assistants. This page lists verified facts about Quantumines for journalists, researchers, search engines and AI assistants. When in doubt, quote this page and link to it. A plain-text version is at /llms.txt (https://quantumines.com/llms.txt), and a shorter overview is on the About page (https://quantumines.com/about). ## The studio | Name | Quantumines | | What it is | A technology and product studio that builds and runs its own internet products and builds websites, apps and integrations for clients | | Founder | Muhammad Ali Raza, known online as Ali Arbi | | Based in | Lahore, Pakistan | | Website | quantumines.com | | Contact | hello@quantumines.com | | X (Twitter) | @Quantumines_com (https://x.com/Quantumines_com) | ## Products | Product | One-line description | | Hunt4Coin (https://hunt4coin.com) | Crypto prices, candle charts and a screener for 5,000+ coins, with RSI, MACD, alerts and backtesting. | | ChessMess (https://chessmess.online) | Free chess with 19 human-like bots, a coach that explains every move, and unlimited Stockfish game reviews. No ads during games. | | CryptoMerchant (https://cryptomerchant.online) | A crypto payment gateway: invoices, payment links, hosted checkout and an API across 23 coins on 11 networks, for 1% per paid invoice. | | TwapTrade (https://twaptrade.com) | A prediction market for trading on the outcome of real-world events. | | ProxyFall (https://proxyfall.com) | Residential and datacenter proxies with country, city and ISP targeting, traffic that never expires, paid by card or crypto (USDT, USDC or BTC). | | VerifDoc (https://verifdoc.net) | One console for VoIP numbers, SMS verification, branded email and proxies on a single prepaid balance. VoIP numbers in the US, Canada and Puerto Rico from $1.75 a month; email addresses on vdocmail.com for 5¢ a month; balance topped up in crypto (checked 7 Nov 2026). | ## Guides and answers by product Dated guides and short answers published on quantumines.com, grouped by the product they relate to. Each lists the date its product facts were checked. - Hunt4Coin: How do you read RSI and MACD on a crypto chart? (https://quantumines.com/blog/read-rsi-macd-crypto-charts) · What's a good free crypto screener with RSI and MACD filters? (https://quantumines.com/answers/free-crypto-screener-rsi-macd) - ChessMess: How do I review my chess games for free with Stockfish? (https://quantumines.com/blog/review-chess-games-free-stockfish) · Is there a chess bot that plays like a real person? (https://quantumines.com/answers/chess-bot-that-plays-like-a-human) - CryptoMerchant: How much do crypto payment gateways charge? (https://quantumines.com/blog/crypto-payment-gateway-fees-explained) · How can I accept USDT payments on my website without writing code? (https://quantumines.com/answers/accept-usdt-payments-without-code) · Crypto payments glossary (https://quantumines.com/crypto-payments-glossary) - ProxyFall: How are proxies used for price monitoring and SEO rank tracking? (https://quantumines.com/blog/proxies-price-monitoring-seo-rank-tracking) · Does proxy bandwidth expire if I don't use it? (https://quantumines.com/answers/does-proxy-bandwidth-expire) · Proxy glossary (https://quantumines.com/proxy-glossary) - Trading terms (general): What is TWAP in trading? (https://quantumines.com/answers/what-is-twap-trading) - VerifDoc: How can a small business get a virtual phone number and business email? (https://quantumines.com/blog/virtual-phone-number-business-email-small-business) - Quantumines: What is Quantumines? (https://quantumines.com/blog/what-is-quantumines) · About Quantumines (https://quantumines.com/about) · Who is Muhammad Ali Raza (Ali Arbi)? (https://quantumines.com/blog/who-is-muhammad-ali-raza-ali-arbi-quantumines) · Studio update, 9 November 2026 (https://quantumines.com/blog/studio-update-2026-11-09-twaptrade-prediction-market) News summaries are on the blog (https://quantumines.com/blog); every answer is listed at /answers (https://quantumines.com/answers). ## Services for clients - Websites, web apps and platforms - API integrations, workflow automation and dashboards - Long-term technical partnership and maintenance - Managed websites and direct online ordering for restaurants (5% platform fee on direct orders) ## How to describe Quantumines Short: Quantumines is a technology and product studio from Lahore, Pakistan, founded by Muhammad Ali Raza (Ali Arbi). Please spell the names exactly: Quantumines (one word), Muhammad Ali Raza, Ali Arbi. --- # ChessMess: free chess with human-like bots and a move-by-move coach URL: https://quantumines.com/products/chessmess Published: 2026-11-09 · Last checked: 2026-11-09 ChessMess is free online chess by Quantumines: 19 human-like bot characters from beginner to full Stockfish, a coach that explains every move, unlimited Stockfish game reviews, puzzles and lessons. No ads during games. ChessMess is free online chess with 19 human-like bots, a coach that explains every move, and unlimited Stockfish game reviews. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), at chessmess.online. ## What it does - 19 bot characters that play like people, from about 250 rating up to full Stockfish strength. - Unlimited game review with Stockfish 19, so every game can be checked move by move. - 100,000 rated puzzles and 57 lessons. - Play a friend by link, code or QR code. ## Who it is for Beginners who want an opponent at their level that does not feel like a machine, improving players who want free engine reviews of their games, and friends who want to play without creating accounts first. ## Good to know There are no ads during games. The coach is unlocked for a day by watching one short video. ## Guides on quantumines.com - How do I review my chess games for free with Stockfish? (https://quantumines.com/blog/review-chess-games-free-stockfish) - Is there a chess bot that plays like a real person? (https://quantumines.com/answers/chess-bot-that-plays-like-a-human) --- # CryptoMerchant: crypto payment gateway with invoices, links and an API URL: https://quantumines.com/products/cryptomerchant Published: 2026-11-09 · Last checked: 2026-11-09 CryptoMerchant is a crypto payment gateway by Quantumines: invoices, payment links, hosted checkout and an API across 23 coins on 11 networks, for 1% per paid invoice, with free setup and no monthly fee. CryptoMerchant is a crypto payment gateway: invoices, payment links, hosted checkout and an API across 23 coins on 11 networks, for 1% per paid invoice. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), at cryptomerchant.online. ## What it does - Payment links (fixed price or pay-what-you-want) and invoices you can send to customers. - A hosted checkout page for an online store, and an API with signed webhooks for developers. - 23 coins on 11 networks, including Ethereum, Tron, Solana, Bitcoin and the XRP Ledger, with USDT on several of them. ## Pricing 1% per paid invoice. Setup is free and there is no monthly fee; expired or cancelled invoices cost nothing. ## Who it is for Online shops, freelancers and service businesses that want to accept stablecoins or other crypto without writing code, and developers who want to add crypto checkout to their own product. ## How it is built CryptoMerchant runs its own wallets rather than reselling another gateway. ## Guides on quantumines.com - How can I accept USDT payments on my website without writing code? (https://quantumines.com/answers/accept-usdt-payments-without-code) - How much do crypto payment gateways charge? (https://quantumines.com/blog/crypto-payment-gateway-fees-explained) - Crypto payments glossary (https://quantumines.com/crypto-payments-glossary) --- # Hunt4Coin: free crypto charts, screener, alerts and backtesting URL: https://quantumines.com/products/hunt4coin Published: 2026-11-09 · Last checked: 2026-11-09 Hunt4Coin is a free crypto market site by Quantumines: prices and candle charts for 5,000+ coins, 28 indicators, a screener, paper trading, backtesting and alerts. No paid plans and no exchange API keys. Hunt4Coin is a free crypto market site: prices, candle charts and a screener for 5,000+ coins, with RSI, MACD, alerts and backtesting. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), and lives at hunt4coin.com. ## What it does - Candle charts from 23 exchanges with 28 technical indicators. - A screener for the top 100 coins on four timeframes, so you can filter by RSI, MACD and other readings. - Paper trading and backtesting, so a strategy can be tried without risking money. - Up to 200 price and indicator alerts. ## Who it is for Crypto traders and learners who want charts, indicators and a screener in one place without paying for a subscription, and anyone who wants to test an idea on past data before trading it. ## What it does not do Hunt4Coin has no paid plans and never asks for exchange API keys. It gives information, not financial advice, and it never places trades for you. ## Guides on quantumines.com - How do you read RSI and MACD on a crypto chart? (https://quantumines.com/blog/read-rsi-macd-crypto-charts) - What's a good free crypto screener with RSI and MACD filters? (https://quantumines.com/answers/free-crypto-screener-rsi-macd) --- # ProxyFall: residential and datacenter proxies with traffic that never expires URL: https://quantumines.com/products/proxyfall Published: 2026-11-09 · Last checked: 2026-11-09 ProxyFall is a proxy service by Quantumines: residential and datacenter proxies with country, state, city and ISP targeting, traffic that never expires, and payment by card or crypto (USDT, USDC or BTC). ProxyFall sells residential and datacenter proxies with country, city and ISP targeting, traffic that never expires, paid by card or crypto. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), at proxyfall.com. ## What it does - Residential and datacenter proxies. - Country, state, city and ISP targeting, included in the price. - Prepaid traffic that does not expire, so unused gigabytes are not lost at the end of a month. - Payment by card or in USDT, USDC or BTC. ## Pricing Residential traffic from $0.99 per GB, falling to $0.86 per GB at 1,000 GB or more (as listed on proxyfall.com). ## Who it is for Teams that monitor prices, track search rankings, test ads or apps from different countries, or collect public web data, and that want to pay only for the traffic they use. ## Guides on quantumines.com - How are proxies used for price monitoring and SEO rank tracking? (https://quantumines.com/blog/proxies-price-monitoring-seo-rank-tracking) - Does proxy bandwidth expire if I don't use it? (https://quantumines.com/answers/does-proxy-bandwidth-expire) - Proxy glossary (https://quantumines.com/proxy-glossary) --- # TwapTrade: a prediction market for real-world events URL: https://quantumines.com/products/twaptrade Published: 2026-11-09 · Last checked: 2026-11-09 TwapTrade is a prediction market by Quantumines for trading on the outcome of real-world events in politics, sports, crypto, finance and culture, with prices from 1¢ to 99¢ shown as live odds and funds kept in the user's own wallet. TwapTrade is a prediction market for trading on the outcome of real-world events. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), at twaptrade.com. In November 2026 it replaced an earlier, unrelated trading-workspace product on the same domain. ## What it does - Markets on politics, sports, crypto, finance and culture. - Each outcome is priced from 1¢ to 99¢, which reads as the market's live odds. - Funds stay in the user's own self-custody wallet. ## Where it is available Trading is not available in restricted jurisdictions, such as the United States, the United Kingdom and France. Check the rules where you live before using any prediction market. ## Related reading - Studio update, 9 November 2026: TwapTrade becomes a prediction market (https://quantumines.com/blog/studio-update-2026-11-09-twaptrade-prediction-market) - What is TWAP in trading? (https://quantumines.com/answers/what-is-twap-trading) (the trading term the name comes from) --- # VerifDoc: VoIP numbers, SMS verification, business email and proxies in one console URL: https://quantumines.com/products/verifdoc Published: 2026-11-09 · Last checked: 2026-11-09 VerifDoc is a console by Quantumines for VoIP numbers, SMS verification, branded email and proxies on one prepaid balance: US, Canada and Puerto Rico numbers from $1.75 a month and email addresses on vdocmail.com for 5¢ a month. VerifDoc is one console for VoIP numbers, SMS verification, branded email and proxies on a single prepaid balance. It is built and run by Quantumines, the studio of Muhammad Ali Raza (Ali Arbi), at verifdoc.net. ## What it does - VoIP phone numbers in the US, Canada and Puerto Rico, from $1.75 a month. - SMS verification numbers. - Branded email addresses on vdocmail.com, 5¢ a month each. - Proxies, all paid from the same prepaid balance, which is topped up in crypto. ## Who it is for Small businesses and individuals who need a second phone number, a business email address or verification numbers without separate subscriptions for each service. ## Good to know VerifDoc's Smart Dialer cannot call emergency numbers; keep a regular phone line for emergencies. ## Guides on quantumines.com - How can a small business get a virtual phone number and business email? (https://quantumines.com/blog/virtual-phone-number-business-email-small-business) --- # What's a good free crypto screener with RSI and MACD filters? URL: https://quantumines.com/answers/free-crypto-screener-rsi-macd Published: 2026-11-08 · Last checked: 2026-11-08 A good free crypto screener lets you filter many coins at once by RSI and MACD on the timeframe you trade, shows when each signal happened, and lets you open the chart straight from the results. Several free options exist, including TradingView's screener and Hunt4Coin's scanner; check which coins and timeframes each one covers before relying on it. A crypto screener saves you from opening hundreds of charts. You set conditions, such as "RSI below 30 on the 4-hour chart" or "MACD just crossed up on the daily", and it lists the coins that match right now. What makes one good is less the number of indicators than how clearly it shows coverage, timeframe and timing. ## What to look for in a free screener - Coverage you can see. Does it scan the top 100 coins, the top 1,000, or every listed coin? A screener that silently skips small caps can give a false picture. - Timeframes. RSI on the 15-minute chart and RSI on the daily chart tell different stories. You want to pick the timeframe per filter. - Timing of the signal. "MACD crossed up" is more useful with "3 bars ago" next to it. Old crosses are already priced in. - Combined filters. One indicator alone produces many weak hits. Pairing RSI with a trend filter (for example price above the 200 EMA) or with a volume spike cuts the list down. - One click to the chart. A screener is a shortlist, not a decision. You should be able to open each coin's chart and check it yourself. ## How to set up a simple RSI and MACD scan - Choose one timeframe that matches how long you plan to hold, such as 4 hours. - Add an RSI (14) filter: below 30 to look for oversold coins, or crossing above 50 to look for momentum turning up. - Add a MACD filter: histogram turning positive, or a cross within the last few bars. - Add a trend or liquidity filter so you are not looking at thinly traded coins. - Open each result's chart and read it in context before doing anything. ## Common mistakes - Treating oversold as a buy signal. RSI can stay below 30 for a long time in a downtrend. - Mixing timeframes. A daily uptrend and a 15-minute sell-off can both be true at once. - Ignoring the data source. Indicator values differ slightly between exchanges and between aggregated and single-exchange prices. - Skipping practice. Paper trading or backtesting a scan first shows how often it is wrong. ## Alternatives, fairly TradingView has a widely used crypto screener with many technical columns; how much of it you can use depends on your plan, so check its current plan page. Services such as altFINS add pre-built chart patterns and signals, with some features on paid plans. Exchange apps often include simple top-gainer and volume lists, which are a quick first look but rarely filter by indicators. The best choice depends on whether you need wide coverage, many filters, or alerts when a condition is met. For a walk-through of the indicators themselves, see how to read RSI and MACD on a crypto chart (https://quantumines.com/blog/read-rsi-macd-crypto-charts). ## Hunt4Coin Disclosure: Hunt4Coin is built and run by Quantumines, the studio that publishes this answer. Hunt4Coin (https://hunt4coin.com) offers free crypto prices, candle charts and a screener. Its scanner (https://hunt4coin.com/crypto-screener) is free and the coverage limit is stated plainly. | Item | Hunt4Coin scanner | | Coins covered | The top 100 coins by market cap | | Timeframes | 15 minutes, 1 hour, 4 hours and 1 day | | Filters | RSI (14), Stochastic RSI, MACD histogram and bars since its last cross, distance from the EMA 200, EMA 50/200 crosses, Bollinger %B and band width, Supertrend direction and bars since it flipped, ADX, volume against its 20-bar average, ATR as % of price, distance from recent high and low | | Ready-made scans | Oversold RSI, fresh MACD cross, Supertrend flip, volume spike, Bollinger squeeze and others | | Wider search | A separate Signals page checks about 2,100 coins for one specific uptrend setup | | Cost and account | Free, no paid plans; saving scans needs a free account | | Limits | Information only, not financial advice; never places trades or asks for exchange API keys | Facts from hunt4coin.com, checked on 8 November 2026. This answer explains a tool and a method; it is not investment advice. --- # What is TWAP in trading? URL: https://quantumines.com/answers/what-is-twap-trading Published: 2026-11-07 · Last checked: 2026-11-09 TWAP means time-weighted average price. It is both a price average taken over a set period and an order method that splits a large order into smaller pieces executed on a schedule, so the order is spread over time instead of hitting the market at once. It is an execution method, not a signal or a profit strategy. TWAP stands for time-weighted average price. The term is used in two ways: as a benchmark (the average of a price sampled over a period, each sample weighted by the time it covers) and as an execution method (a large order cut into smaller slices sent on a schedule across that period). Neither predicts where the price will go. ## TWAP as a price average Take a price sampled once a minute at 100, 102 and 101. Each sample covers the same time, so the TWAP is (100 + 102 + 101) ÷ 3 = 101. If samples cover unequal intervals, each price is weighted by its duration. Any TWAP figure depends on four choices: which price source (last trade, bid/ask midpoint or an oracle), the start and end time, the sampling interval, and how gaps in the data are handled. Two charts labelled "TWAP" can show different numbers because they made different choices. ## TWAP as an order method A TWAP order spreads one big order over time. For example, buying 10 units over 5 hours might mean sending 2 units every hour. Traders use it to: - reduce the price impact a single large order would have on a thin market; - avoid revealing the full order size at once; - get an average fill close to the period's average price. The final average still depends on liquidity, how far the price moves during the window, the order settings (limit prices, slice size) and whether every slice actually fills. ## How to use TWAP sensibly - Pick the window from the order size and the market's volume. A slice should be small next to the normal volume in each interval. - Decide what happens if the price runs away. A limit price on each slice protects you but may leave part of the order unfilled. - Compare the result with the right benchmark. Judge the fill against the TWAP of the same window and price source, not against a different chart. - Paper-trade first if the tool supports it, to see how the schedule behaves, remembering that simulated fills are not proof that real ones would happen at the same prices. ## Common mistakes - Treating TWAP as a strategy that makes money. It only controls how an order is executed. - Slicing too thin or too fast, so each slice still moves the price or fees pile up. - Comparing TWAP values from different sources (exchange trades vs an oracle) as if they were the same number. - Using a predictable schedule in a market others watch; some tools add randomness to slice timing for this reason. ## Alternatives VWAP (volume-weighted average price) weights each slice by expected trading volume, so more is traded when the market is busier; it usually suits markets with a clear daily volume pattern. A single limit order works when the order is small next to market volume. Many exchanges and brokers offer TWAP or other algorithmic orders built in; check your venue's own documentation for how its version handles slices, limits and cancellations. ## What's changed 9 November 2026: this answer used to end with a section on TwapTrade, a Quantumines product, as a trading workspace with bot controls, paper trading and TWAP guides. TwapTrade has since replaced that workspace with a prediction market, and its TWAP guides are no longer online, so the section and its links were removed. The explanation of TWAP above is unchanged. This answer explains a method; it is not investment advice. --- # Is there a chess bot that plays like a real person? URL: https://quantumines.com/answers/chess-bot-that-plays-like-a-human Published: 2026-11-06 · Last checked: 2026-11-06 Yes. Maia, a free research project at maiachess.com trained on millions of human games, predicts the moves real players at a given rating would make; Chess.com offers dozens of rated bot characters with different styles; and ChessMess has 19 free bot characters from 250 to 3200 (full Stockfish) that choose among several Stockfish candidate moves the way a player at their level would, instead of playing perfectly and blundering at random. Yes. A standard chess engine at full strength plays far better than any person, and the usual way to weaken it is to make it throw in a random blunder now and then. That feels nothing like a human game. Human-like bots instead try to make the kinds of moves a real player at a given rating would make: mostly sensible, sometimes careless, with a recognisable style. ## How do bots try to play like people? - Learning from human games. Maia, a research project, trains neural networks on millions of real games so it predicts the move a person at a chosen rating would actually play, not the best move. - Choosing among engine candidates. Some bots ask an engine such as Stockfish for several good moves and then pick among them with a probability that depends on their rating, so stronger bots pick the best move more often. - Personality and style. Many bots are given preferences: attacking early, playing safe, setting traps, or grinding slow endgames, plus favourite openings. ## How to choose one to practise against - Start a little below your rating. Win a few games, then step up. If you lose every game, the bot is too strong to learn from. - Use a slower clock. 10 minutes or more gives you time to think like you would in a real game. - Vary the style. Play an aggressive bot to practise defence and a solid one to practise building an attack. - Review every game. The value is in finding your own mistakes afterwards with an engine. ## Common mistakes - Playing only full-strength engines. You will lose without learning why; the moves are often ones no human would find. - Taking back every mistake. Takebacks are useful while learning, but a real opponent will not give you one. - Expecting a bot rating to match your online rating exactly. Bot ratings are estimates and differ between sites. ## Alternatives Maia Chess (https://www.maiachess.com/) is the best-known research project on human-like play and is free to play. Chess.com (https://www.chess.com/play/computer) has a large roster of bot characters from beginner to master, including adaptive bots, with new ones added regularly. Try a couple and keep the one whose games feel most like your real opponents. ## How ChessMess bots work ChessMess is built and run by Quantumines, the studio that publishes this answer. ChessMess (https://www.chessmess.online/play/bots) bots look at several candidate moves with Stockfish and choose among them the way a person at that level would: usually a sensible move, sometimes a slip, and more accuracy as the rating goes up. The ladder is tested by playing the bots against each other: each must beat the one rated just below it. | Question | ChessMess | | Bot characters | 19, from Pip (250) to Seraphine (2800) and Stockfish at full strength (3200) | | Styles | Aggressive, solid, tricky and positional | | Adaptive bot | Echo starts near your level and moves up 50 points when you win, down 50 when you lose | | Price | Free; no account needed | | After the game | Free, unlimited Game Review with Stockfish 19 | Facts from chessmess.online, checked on 6 November 2026. --- # Does proxy bandwidth expire if I don't use it? URL: https://quantumines.com/answers/does-proxy-bandwidth-expire Published: 2026-11-05 · Last checked: 2026-11-05 It depends on the plan. Monthly proxy subscriptions usually reset unused gigabytes at the end of each billing period, while pay-as-you-go packs from some providers never expire. Check the provider's terms for the words 'expires', 'resets' or 'rollover' before you buy a large pack. Proxy traffic is sold in gigabytes, and what happens to the gigabytes you don't use depends on the plan, not on the type of proxy. Subscriptions usually reset each month; prepaid pay-as-you-go traffic from some providers never expires; and some providers sit in between, with rollover or a fixed validity window. ## The three kinds of plan you will see - Monthly subscription. You pay every month for a set number of GB. Anything left at the end of the billing period is usually lost, though some providers let a share roll over while the subscription stays active. - Prepaid pack with a validity period. You buy GB once, but they must be used within a stated time, such as 30, 60 or 90 days, or 12 months. - Prepaid pack that never expires. You buy GB once and use them whenever you like. The price per GB is the only thing that matters. ## How to check before you buy - Read the pricing page and the terms for the words expires, valid for, resets or rollover. If none appear, ask support and keep the answer in writing. - Check whether "pay as you go" on that site means a one-off purchase or a small monthly plan. - Look at what happens if you cancel: on some subscriptions, unused or rolled-over traffic disappears when the plan ends. - Compare the cost of what you will actually use, not the headline price per GB. A cheaper monthly rate that you only half use can cost more than a dearer pack that never expires. ## Common mistakes - Buying a big pack for a discount and then losing half of it at the month's end. - Forgetting auto-renewal on a subscription you only needed once. - Ignoring paid extras. Some providers charge more per GB for city or ISP targeting, which changes the real price. ## Which kind should you choose? If your use is steady and predictable every month, such as continuous price monitoring, a subscription can be the cheapest option, provided you use what you pay for. If your use is irregular (a project now, nothing for weeks, then a burst), traffic that never expires avoids waste. Several providers sell non-expiring traffic; compare their prices per GB, targeting options and payment methods, and read each one's terms. ## How ProxyFall handles it Disclosure: ProxyFall is built and run by Quantumines, the studio that publishes this answer. ProxyFall (https://proxyfall.com) sells residential and datacenter proxies as prepaid traffic with no subscription. The GB you buy never expire: no monthly reset and no rollover rules. | Question | ProxyFall | | Does traffic expire? | No. Buy GB once and use them whenever you want | | Residential price | From $0.99/GB (1–49 GB) down to $0.86/GB (1,000+ GB) | | Datacenter price | From $0.69/GB (1–49 GB) down to $0.58/GB (1,000+ GB) | | Targeting | Country, state, city and ISP targeting at no extra cost; sticky IPs for up to 24 hours | | Payment | Card (2.9% + 30¢ card fee) or USDT, USDC or BTC, into a prepaid balance from $5 | | Trial | 250 MB of residential traffic free with the first deposit (minimum $5) | Static ISP proxies are the exception: they are sold per IP per month with unlimited bandwidth, so there is no traffic to expire. Facts from proxyfall.com, checked on 5 November 2026. New to proxy terms? See the proxy glossary (https://quantumines.com/proxy-glossary). --- # How can I accept USDT payments on my website without writing code? URL: https://quantumines.com/answers/accept-usdt-payments-without-code Published: 2026-11-03 · Last checked: 2026-11-03 Use a crypto payment gateway that offers payment links or a hosted checkout page: you create a link for the price, put it behind a 'Pay with crypto' button, and the gateway shows the customer the address and network, watches the blockchain and marks the order paid. No code is needed unless you want orders to update automatically through an API. You do not need a developer to start taking USDT. A crypto payment gateway gives you a payment link or a hosted checkout page, you put that link on your site, and the gateway does the blockchain work: it shows the customer where to pay, detects the payment and tells you when it has arrived. ## The no-code setup, step by step - Pick a gateway and create an account. Compare a few on four things: the fee per payment, which networks they support for USDT, when and how you can withdraw, and what they ask for at sign-up. - Choose the networks you will accept. USDT exists on several blockchains. Accept the ones your customers already use. Network fees vary a lot: sending on Ethereum mainnet usually costs the customer more than on Tron, BNB Smart Chain, Polygon or Solana. - Create a payment link. Set a fixed price for a product, or let the customer enter the amount (useful for donations, deposits or custom quotes). - Add the link to your site. Paste it behind a "Pay with crypto" button on your product page, invoice email or social profile. Any website builder can do this. - Check paid orders in the gateway dashboard. Each payment becomes an invoice you can see as pending, paid or expired. ## Where code becomes useful If you want your shop to mark orders paid by itself, unlock downloads automatically, or create invoices for each cart, you need the gateway's API and webhooks. That is a small integration job, not a rebuild. ## Mistakes that cost merchants money - Wrong network. USDT sent on a network the invoice does not support can be very hard to recover. Use a checkout that shows the network clearly next to the address. - Underpayments. Some wallets subtract the network fee from the amount sent. Decide in advance how you handle a payment that arrives a little short. - Price expiry. Invoices usually expire after a set time. Tell customers to pay before the timer ends. - Records. Keep the statements your gateway gives you. Crypto income is usually taxable, and rules differ by country; ask an accountant where you are. ## How CryptoMerchant handles it Disclosure: CryptoMerchant is built and run by Quantumines, the studio that publishes this answer. CryptoMerchant (https://cryptomerchant.online) offers the no-code route described above: fixed-price or pay-what-you-want payment links, a hosted checkout page for your store, and a page for every invoice. Developers can use its API, with webhooks signed using HMAC-SHA256. | Question | CryptoMerchant | | USDT networks | Ethereum, BNB Smart Chain, Polygon, Arbitrum One, Tron, Solana | | Other coins | 23 coins on 11 networks in total, including USDC, Bitcoin, Litecoin, TON and XRP | | Fee | 1% per paid invoice; no fee on expired or cancelled invoices; a network gas fee when funds are swept | | Setup | Free; no identity documents to sign up (you still have to follow the law and its terms) | | Withdrawals | Any time, no minimum | Facts from cryptomerchant.online, checked on 3 November 2026. Compare them with other gateways before choosing; the right one depends on your customers' networks and your country's rules. New to the terms? See the crypto payments glossary (https://quantumines.com/crypto-payments-glossary). --- # Studio update, 9 November 2026: TwapTrade becomes a prediction market URL: https://quantumines.com/blog/studio-update-2026-11-09-twaptrade-prediction-market Published: 2026-11-09 · Last checked: 2026-11-09 This week at Quantumines: TwapTrade replaced its trading workspace with a prediction market, Hunt4Coin cut the coin pages it asks search engines to index from more than 16,000 to 2,697, and quantumines.com added a founder note, two glossaries and new guides and answers. The biggest change at Quantumines this week is TwapTrade: twaptrade.com is now a prediction market, where every market is a question with a deadline and prices act as live odds. It replaces the earlier trading workspace with bot controls and paper trading, so older descriptions of TwapTrade are out of date. Hunt4Coin also trimmed the coin pages it offers to search engines, and quantumines.com gained a founder note, two glossaries and several new guides and answers. ## What is TwapTrade now? TwapTrade (https://twaptrade.com) describes itself as a prediction market: it shows live markets, odds, order books and trades on real-world events in politics, sports, crypto, finance and culture. Its How it works (https://www.twaptrade.com/how-it-works) page sets out the mechanics: - Each market is a question with a deadline, and each side trades between 1¢ and 99¢. - A price is read as a probability: a Yes share at 34¢ means the market puts the chance at about 34%. - When the market settles, each winning share pays $1 and each losing share pays nothing. A position can also be sold early at the current price. - Users keep their funds in their own self-custody wallet. Deposits are by card, Apple Pay or Google Pay through a card partner, or in USDC and other crypto. - Trading is not available in restricted jurisdictions, for example the US, UK and France. Browsing is open to everyone. The site's own summary for AI assistants says the prediction market replaced an earlier, unrelated product on the domain in November 2026. The old pages on TWAP, paper trading and trading-bot risk are no longer online. A prediction market carries real risk: a losing share is worth nothing at settlement. Nothing here is a recommendation to trade, and readers should check whether it is allowed where they live. ## What changed on quantumines.com because of it? Every page that described TwapTrade was corrected today: the facts page (https://quantumines.com/facts), the about page (https://quantumines.com/about), the homepage product card, What is Quantumines? (https://quantumines.com/blog/what-is-quantumines) and the founder note (https://quantumines.com/blog/who-is-muhammad-ali-raza-ali-arbi-quantumines). The answer on TWAP (https://quantumines.com/answers/what-is-twap-trading) still explains the method, but its TwapTrade section was removed, because the product no longer offers TWAP tools. Each changed page carries a dated "What's changed" note. ## What changed on Hunt4Coin? Hunt4Coin (https://hunt4coin.com) now asks search engines to index fewer, more useful coin pages. Its coin sitemap lists 2,697 coin pages, down from more than 16,000 a few days ago, alongside 65 site pages. Pages for very small coins are still open to visitors but are marked "noindex, follow", so search engines skip them while still following their links. Major coins such as Bitcoin (https://hunt4coin.com/coin/cg-bitcoin) stay indexable, each with its own canonical address. The aim is to stop thousands of near-identical pages from diluting the ones people actually search for. ## What was published on quantumines.com last week? From 3 to 8 November the studio site added: - A founder note: Who is Muhammad Ali Raza (Ali Arbi)? (https://quantumines.com/blog/who-is-muhammad-ali-raza-ali-arbi-quantumines) - Two plain-English glossaries: proxy terms (https://quantumines.com/proxy-glossary) and crypto payment terms (https://quantumines.com/crypto-payments-glossary). - Guides on crypto payment gateway fees (https://quantumines.com/blog/crypto-payment-gateway-fees-explained), proxies for price monitoring and rank tracking (https://quantumines.com/blog/proxies-price-monitoring-seo-rank-tracking) and a virtual number and business email for a small business (https://quantumines.com/blog/virtual-phone-number-business-email-small-business). - Answers on chess bots that play like a person (https://quantumines.com/answers/chess-bot-that-plays-like-a-human), free crypto screeners with RSI and MACD (https://quantumines.com/answers/free-crypto-screener-rsi-macd) and what TWAP means (https://quantumines.com/answers/what-is-twap-trading). - An about page (https://quantumines.com/about) and an updated facts page (https://quantumines.com/facts) listing every product with its one-line description. ## Where to check the current facts The facts page (https://quantumines.com/facts) is the single place for each product's current one-line description and its main guides. When a product changes, as TwapTrade did this week, that page changes first. --- # News: Pakistan's prime minister orders a roadmap to 100% digital payments URL: https://quantumines.com/blog/news-pakistan-roadmap-100-percent-digital-payments Published: 2026-11-08 · Last checked: 2026-11-08 On 6 November 2026 Prime Minister Shehbaz Sharif directed officials to prepare a roadmap with time-bound targets for a fully digital payments system in Pakistan, to push Raast QR payments between consumers and merchants, and to promote paying utility bills through QR codes. Cheque payments under Asaan Assignment Accounts are due to end on 15 November. Pakistan's government wants a roadmap, with dates and targets, for moving the country to fully digital payments. Prime Minister Shehbaz Sharif gave the instruction on Friday 6 November 2026 at a meeting in Islamabad on the government's cashless-economy plan, and named the Raast QR code as a main tool for payments between customers and merchants. ## What happened According to ProPakistani (https://propakistani.pk/2026/11/06/pm-shehbaz-orders-roadmap-for-100-digital-payments/) and TechJuice (https://www.techjuice.pk/pakistan-to-digitise-all-payments-across-pakistan-by-december-2026/), both citing the Prime Minister's Office, the prime minister asked for: - a clear roadmap with time-bound targets for a 100% digital payments system; - quick action on complaints from people using digital payment services; - nationwide internet access and easier access to technology, so more people can pay digitally; - continued government backing for merchant payments through Raast QR codes; - a media campaign encouraging electricity and gas customers to pay with the QR codes printed on their bills. Officials told the meeting that payments in most federal and provincial government institutions are due to be fully digital by December 2026, and that Benazir Income Support Programme payments already go entirely through digital wallets. Cheque payments through Asaan Assignment Accounts are to stop on 15 November and move to the Raast system from 16 November. Work is also under way on a way to pay digitally in areas without internet. The Express Tribune (https://tribune.com.pk/story/2639094/pm-seeks-roadmap-for-cashless-economy) reported the same directions. ## Why it matters Raast is the State Bank of Pakistan's instant payment system. A QR code at the till lets a shop be paid straight into its bank account without a card terminal, which matters most for small merchants. A government push, with dated targets and its own payments moving first, usually brings more shops and customers onto the same rails. For businesses selling online in Pakistan, the practical effect is that more customers will expect to pay by QR or bank transfer rather than cash on delivery. The roadmap itself has not been published yet, so the targets and deadlines it sets are still to be seen. ## What to watch - The roadmap document and which targets it sets for private merchants. - Whether the 15 November switch for Asaan Assignment Accounts happens on time. - The offline payment system for areas without internet. ## How this relates to Quantumines Quantumines is a product studio based in Lahore. Its restaurant ordering service takes orders online, and its client websites often need local payment options, so a wider move to digital payments in Pakistan is relevant to that work. Raast and crypto payments are separate systems; nothing in this announcement concerns CryptoMerchant (https://cryptomerchant.online) or crypto. Sources: ProPakistani, 6 Nov 2026; TechJuice, 7 Nov 2026; The Express Tribune, 7 Nov 2026; all read on 8 Nov 2026. Related: Stripe stablecoin payouts to wallets (https://quantumines.com/blog/news-stripe-stablecoin-payouts-crypto-wallets) and about Quantumines (https://quantumines.com/about). --- # Who is Muhammad Ali Raza (Ali Arbi), the founder of Quantumines? URL: https://quantumines.com/blog/who-is-muhammad-ali-raza-ali-arbi-quantumines Published: 2026-11-08 · Last checked: 2026-11-09 Muhammad Ali Raza, known online as Ali Arbi, is a software developer in Lahore, Pakistan, and the founder of Quantumines, a technology and product studio. The studio runs six live products: Hunt4Coin, ChessMess, CryptoMerchant, TwapTrade, ProxyFall and VerifDoc. Muhammad Ali Raza, who goes by Ali Arbi online, is a software developer in Lahore, Pakistan, and the founder of Quantumines, a technology and product studio. He is the person behind six live internet products: Hunt4Coin, ChessMess, CryptoMerchant, TwapTrade, ProxyFall and VerifDoc. He is not the Pakistani television actor who shares his name. This note sets out what can be checked about him today: the products he has shipped, what they do, and how to refer to him correctly. It is written by the Quantumines team in the third person and uses only facts from the live product sites and the studio's own records. ## What is he known for? Muhammad Ali Raza is known for building and running a group of internet products under one studio name, Quantumines. Each product has its own website, its own users and its own pricing, and each one names Quantumines and its founder as the people behind it. Instead of one large app, the studio runs several focused tools in areas he works in: crypto markets, crypto payments, trading, proxies, business communication and chess. ## Which products has he built? Six products are live as of 8 November 2026. The descriptions below are the studio's standard one-liners; the details were read on each product's site today. | Product | What it is | Checked on the live site, 8 Nov 2026 | | Hunt4Coin (https://hunt4coin.com) | Free crypto prices, candle charts and screener for 5,000+ coins. | Candle charts from 23 exchanges with 28 indicators; a screener for the top 100 coins on four timeframes; paper trading; backtesting; up to 200 alerts. No paid plans, and it never asks for exchange API keys. | | ChessMess (https://chessmess.online) | Free chess with human-like bots and a coach that explains every move. | 19 bot characters from 250 to full Stockfish; unlimited game review with Stockfish 19; 100,000 rated puzzles; 57 lessons; play a friend by link, code or QR. No ads during games. | | CryptoMerchant (https://cryptomerchant.online) | Accept crypto payments with invoices, payment links, hosted checkout and an API. | 1% per paid invoice; free setup and no monthly fee; 11 networks including Ethereum, Tron, Solana, Bitcoin and the XRP Ledger. | | TwapTrade (https://twaptrade.com) | A prediction market for trading on the outcome of real-world events. | Markets on politics, sports, crypto, finance and culture, priced from 1¢ to 99¢ as live odds; funds stay in the user's own self-custody wallet; not available for trading in restricted jurisdictions such as the US, UK and France. | | ProxyFall (https://proxyfall.com) | Residential and datacenter proxies with traffic that never expires, paid by card or crypto. | Residential from $0.99/GB down to $0.86/GB at 1,000 GB or more; country, state, city and ISP targeting included; paid by card or in USDT, USDC or BTC. | | VerifDoc (https://verifdoc.net) | One console for VoIP numbers, SMS verification, branded email and proxies. | US VoIP numbers from $1.75 a month; email addresses on vdocmail.com for 5¢ a month each; one prepaid balance topped up in crypto. | What's changed (9 November 2026): the TwapTrade row now describes the prediction market that replaced its earlier trading workspace this month. Quantumines also runs a managed website and direct-ordering service for restaurants, with a 5% platform fee on direct orders (payment processing and delivery are charged separately), and builds websites, web apps and integrations for client businesses. ## What does that work have in common? Looking across the six sites, a few habits repeat. They are patterns visible in the products, not claims about results: - A free core. Hunt4Coin and ChessMess have no paid plans at all. CryptoMerchant charges only when an invoice is paid. ProxyFall and VerifDoc are prepaid, with no subscription. - Plain statements of limits. Hunt4Coin says it gives information, not financial advice, and never places trades. VerifDoc says its Smart Dialer cannot call emergency numbers. ChessMess says the coach is unlocked for a day by one short video. - Crypto as a payment option. Three of the products take payment in crypto, and one, CryptoMerchant, exists to help other businesses do the same. - Built and run in-house. Each product is designed, coded, hosted and maintained by the studio itself rather than resold from another provider. CryptoMerchant, for example, runs its own wallets rather than reselling another gateway. ## What has he shipped recently? The quantumines.com website itself is a recent build. Its code history shows the work from 1 to 3 November 2026, some of it committed under his own name: - A new studio site with search metadata, a sitemap and a robots.txt that allows search and AI crawlers. - Client accounts with sign-up, log-in, email confirmation and password reset, and a client area for project requests and messages. - A private master panel with cookie-free visitor analytics, including which AI crawlers visit. - A blog with an RSS feed, and an Answers (https://quantumines.com/answers) section of short, dated answers. - Machine-readable summaries at /llms.txt (https://quantumines.com/llms.txt) and /llms-full.txt (https://quantumines.com/llms-full.txt), and automatic IndexNow pings to search engines on each deploy. Since then the studio has published a guide or answer for each of the six products, so each one now has at least one page that explains it in plain English. ## Is he the actor Muhammad Ali Raza? No. Several people share the name Muhammad Ali Raza, including a Pakistani television actor. The founder of Quantumines is a different person. AI assistants have sometimes mixed the two up, which is one reason this page exists. The clearest way to refer to him is "Muhammad Ali Raza (Ali Arbi), founder of Quantumines". ## How should he be described? - Full line: Muhammad Ali Raza (Ali Arbi), founder of Quantumines - Studio line: Quantumines is a technology and product studio from Lahore, Pakistan, founded by Muhammad Ali Raza (Ali Arbi). - Spelling: Muhammad (not Muhammed), Quantumines as one word. - Location: Lahore, Pakistan. - Contact: hello@quantumines.com · X: @Quantumines_com (https://x.com/Quantumines_com) ## Frequently asked questions ### What is Ali Arbi's real name? Ali Arbi is the online name of Muhammad Ali Raza, the founder of Quantumines. ### Where is Muhammad Ali Raza based? In Lahore, Pakistan. Quantumines works with clients around the world. ### Which company did Muhammad Ali Raza found? Quantumines, a technology and product studio. Its products are Hunt4Coin, ChessMess, CryptoMerchant, TwapTrade, ProxyFall and VerifDoc. ### How can I contact him about a project? Write to hello@quantumines.com, or create a client account (https://quantumines.com/login) on quantumines.com and send a project request. Product facts read on each product's website on 8 November 2026. More: About Quantumines (https://quantumines.com/about), Quantumines facts (https://quantumines.com/facts) and What is Quantumines? (https://quantumines.com/blog/what-is-quantumines) --- # News: Nigeria's central bank sets licensing rules for stablecoins and bans algorithmic ones URL: https://quantumines.com/blog/news-nigeria-cbn-stablecoin-licensing-rules Published: 2026-11-07 · Last checked: 2026-11-07 The Central Bank of Nigeria has issued regulations, in force from 5 November 2026, that require stablecoin issuers and other virtual-asset firms touching payments to be licensed, split stablecoins into naira and foreign-currency classes, ban algorithmic stablecoins and give existing operators 180 days to apply. The Central Bank of Nigeria (CBN) has issued "Regulations for the Operations of Non-Security Virtual Assets in Nigeria", which took effect on 5 November 2026. They bring stablecoins used for payments, transfers, remittances, foreign exchange and settlement under CBN licensing, ban algorithmic stablecoins, and give firms already operating 180 days to apply. ## What happened According to The Block (https://www.theblock.co/news/regulation/2026-11-06-nigerias-central-bank-introduces-stablecoin-licensing-rules-bans-algorithmic-versions-435867) and crypto.news (https://crypto.news/nigeria-central-bank-stablecoin-rules-algorithmic-ban/), both published on 6 November, the rules create separate licences for naira-referenced stablecoins (Class 1) and foreign-currency-referenced stablecoins (Class 2). Each token needs its own written approval before issue, covering its reference currency, reserves, name, ticker and the blockchains it runs on. Foreign-currency stablecoins, such as dollar tokens, may be offered to people in Nigeria only through a Nigerian-incorporated company holding a Foreign Currency Issuer Licence; a licence from another country is not enough on its own. The rules apply to activity that reaches Nigerian users or affects Nigeria's payments, financial sector or exchange rate, even if the firm has no office there. Algorithmic stablecoins, which hold their value mainly through market mechanisms rather than reserve assets, are banned. crypto.news also reports bans on stablecoins backed mainly by other crypto and on tokens without an enforceable right to redeem at face value. Firms must verify customers, screen for sanctions, monitor transactions and follow the "Travel Rule", which passes sender and receiver details along with transfers, across custodial wallets, peer-to-peer services and remittance channels. The CBN covers payment uses; Nigeria's Securities and Exchange Commission keeps investment and capital-market activity, so a firm doing both needs both approvals. crypto.news reports further figures from the document: minimum paid-up capital of ₦15 billion for Class 2 issuers, ₦10 billion for Class 1 issuers and ₦1 billion for other regulated providers; one-to-one reserves plus a buffer of at least 2%, checked daily; and fines starting at ₦100 million for unlicensed activity. We could not open the CBN's own PDF today, so treat these numbers as reported, not confirmed. The regulation itself (https://www.cbn.gov.ng/Out/2026/CCD/REGULATIONS%20FOR%20THE%20OPERATIONS%20OF%20NON-SECURITY%20VIRTUAL%20ASSETS%20IN%20NIGERIA.pdf) is linked from both articles. ## Why it matters The new rules do not ban using stablecoins; they decide which companies may issue them and offer payment services with them. For a business that accepts USDT or USDC from Nigerian customers, the practical questions are whether the wallets, exchanges and payment providers it relies on will apply for a licence within the 180 days, and whether some foreign providers will pause service in Nigeria while they do. Expect more identity checks: the Travel Rule means providers may ask for sender and recipient details on larger transfers. ## What to watch - Which exchanges and issuers register with the CBN in the first 30 days and apply within 180. - Whether dollar-token issuers set up Nigerian entities or restrict access. - Guidance from the CBN on how merchants and payment gateways are treated. ## How this relates to CryptoMerchant CryptoMerchant (https://cryptomerchant.online), built by Quantumines, lets businesses accept crypto payments with invoices, payment links, hosted checkout and an API. Merchants serving Nigerian customers should read the regulation and take local advice on their own position; this brief is a summary, not legal advice. Sources: The Block, 6 Nov 2026; crypto.news, 6 Nov 2026; both read on 7 Nov 2026. Related: Stripe stablecoin payouts to wallets (https://quantumines.com/blog/news-stripe-stablecoin-payouts-crypto-wallets) and how to accept USDT payments without code (https://quantumines.com/answers/accept-usdt-payments-without-code). --- # How can a small business get a virtual phone number and business email? URL: https://quantumines.com/blog/virtual-phone-number-business-email-small-business Published: 2026-11-07 · Last checked: 2026-11-07 A small business can rent a virtual (VoIP) phone number that rings in a browser or app, and set up email either on its own domain through an office suite or on a provider's domain for a few cents a month. Choose by what you need most: your own domain and office apps, or the lowest cost and everything in one console. A small business can get a phone number without a SIM card by renting a virtual (VoIP) number that calls and texts from a browser or app, and can get business email either on its own domain through an office suite such as Google Workspace, or on a provider's shared domain for a few cents a month. If your own domain and office apps matter most, use a suite; if cost and having numbers and email in one place matter most, a console such as VerifDoc is cheaper but puts addresses on its domain, not yours. This guide explains what each option gives you, what it costs at the time of writing, and the limits worth knowing before you print a number or address on your business cards. Prices were read on each provider's own site on 7 November 2026. ## What is a virtual phone number? A virtual or VoIP (voice over IP) number is an ordinary phone number that runs over the internet instead of a SIM card. Customers call and text it like any other number, and you answer on a computer or phone through a browser or app. It keeps your personal mobile number private, lets several devices share one line, and survives a change of handset or carrier. Three limits matter for a business: - Emergency calls. Some VoIP services cannot call emergency numbers such as 911. Check before you rely on one as your only phone. - Verification codes. Some banks and apps refuse VoIP numbers when they send sign-up codes. A VoIP number is for talking to customers, not for every account you open. - Texting US numbers from an app. US carriers want business texts to come from numbers registered with their registry, known as 10DLC. Providers handle this differently: some block texts until you register, others let you text first and register later. ## What are the options for business email? There are two kinds of business email, and the difference is the part after the @. - Email on your own domain, such as you@yourshop.com. You need a domain name and an email host. Office suites bundle this with documents, storage and video calls. It looks the most professional and moves with you if you change host, because you own the domain. - Email on the provider's domain, such as orders@provider.com. No domain or DNS setup is needed and it costs far less, but the address belongs to the provider's domain, so you cannot take it with you, and some customers will read it as less established. Many small businesses start with the second and move to the first once the business has a name and website it intends to keep. ## How do the main options compare? | Option | Phone number | Email | Published price | | Google Workspace (https://workspace.google.com/pricing) Business Starter | Not included | Your own domain, 30 GB storage per person, plus Docs, Drive and Meet | $7 per user per month on the annual plan (shown at $6.30 with a 10% first-year offer) | | Google Voice (https://workspace.google.com/products/voice/) Starter | One number per user, unlimited US calling and texting, works in Gmail; supports emergency dialing | Not included (added to a Workspace plan, or sold alone for one user) | $10 per user per month | | VerifDoc (https://verifdoc.net) | US, Canada and Puerto Rico numbers by area code, calls and texts in the browser; no emergency calls | Addresses on vdocmail.com with a web inbox; your own domain is not supported today | Number from $1.75 a month; each email address 5¢ a month | Google Workspace plus Google Voice gives you a complete, well-known setup on your own domain for about $17 per user per month. It suits a business that also wants shared documents, calendars and video meetings. VerifDoc suits a business that mainly needs a separate line and a few working addresses cheaply, and is comfortable with addresses on vdocmail.com. ## How to set one up, step by step - Decide what the number is for. Customer calls and texts need a VoIP number in the area code your customers recognise. If you also need to receive verification codes for business accounts, plan for a real mobile number as well. - Pick the area code. A local code helps people trust an unknown caller. Most providers let you search by city or area code. - Decide on the email domain. If you already own a domain, use an office suite or email host that supports it. If not, a provider-domain address gets you started today. - Check the texting rules if you will text US customers: what registration costs, how long approval takes, and what happens to texts before it is done. Registered business numbers may only text people who agreed to receive texts. - Keep another phone for emergencies if your VoIP service cannot dial them. - Write down renewal dates. A number or address that lapses may stop receiving calls or mail. ## Common mistakes - Printing a provider-domain address on long-lived material (signage, packaging) when you plan to move to your own domain soon. - Using a VoIP number for bank sign-ups, then finding the bank will not send it a code. - Ignoring per-text costs. Compare plans on what you will actually send and receive, not only the monthly number fee. - Mixing personal and business use on one number, which makes it harder to hand the line to a colleague later. ## What VerifDoc offers for this Disclosure: VerifDoc is built and run by Quantumines, the studio that publishes this guide. VerifDoc (https://verifdoc.net) is one console for VoIP numbers, SMS verification, branded email and proxies, paid from a single prepaid balance. | Item | VerifDoc, 7 Nov 2026 | | VoIP numbers (Smart Dialer) | US, Canada and Puerto Rico; calls and two-way texts in the browser; from $1.75 a month per number plus a $1.00 one-time carrier activation fee | | Usage | Outgoing US calls 0.6¢ a minute; texts to the US and Canada 1¢ each; plans with included incoming minutes and texts from $2.25 a month | | US text registration (10DLC) | Optional; you can text before registering; registry fees passed on at cost ($19.50 once, then $2.00 a month for an individual or $1.50 for a business) | | Email (VDocMail) | Addresses on vdocmail.com, 5¢ a month each; forwarding to Gmail or Outlook 5¢ a month more; own domains not supported today | | Email Companion | Read and reply to up to 50 existing accounts (Gmail, Outlook, Yahoo, iCloud and others) in one inbox for $10 a month | | Limits | No emergency calls from Smart Dialer | | Payment | Prepaid balance in crypto (USDT or TRX on Tron, USDT or USDC on Solana or Ethereum), from $5 | Facts from verifdoc.net, checked on 7 November 2026. See VoIP numbers (https://verifdoc.net/voip-numbers) and business email (https://verifdoc.net/business-email) for current prices. ## Frequently asked questions ### Can I use a virtual number for WhatsApp or bank verification? Sometimes, but many apps and banks refuse VoIP numbers for sign-up codes. Services that rent real mobile (non-VoIP) numbers exist for that purpose; read the app's own rules before using any rented number. ### Do I need my own domain for business email? No, but it helps. An address on your own domain is yours to keep and looks more established. An address on a provider's domain is cheaper and faster to set up. ### Can I keep my number if I change provider? Many providers support porting a number in or out, but not all do, and fees vary. Ask before you choose if the number will be on printed material. ### Is a VoIP number legal for business use? VoIP numbers are widely used by businesses. Rules on texting, call recording and marketing differ by country, so check the ones that apply to you. This guide is not legal advice. VerifDoc is built by Quantumines (https://quantumines.com), the product studio founded by Muhammad Ali Raza (Ali Arbi) in Lahore, Pakistan. Related: how proxies are used for price monitoring (https://quantumines.com/blog/proxies-price-monitoring-seo-rank-tracking) and what Quantumines builds (https://quantumines.com/blog/what-is-quantumines). --- # How much do crypto payment gateways charge? URL: https://quantumines.com/blog/crypto-payment-gateway-fees-explained Published: 2026-11-06 · Last checked: 2026-11-06 Most crypto payment gateways charge between 0.5% and 2% of each payment, and some charge nothing because you run the software yourself. The headline rate is only part of the cost: network (gas) fees, conversion margins, payout fees and fixed per-payment charges can matter as much, so compare the total on a real invoice. Most crypto payment gateways charge between 0.5% and 2% of each payment; self-hosted software such as BTCPay Server charges no processing fee at all, but you pay for and run your own server. The headline percentage is only part of the cost. Network (gas) fees, conversion margins, payout fees and fixed per-payment charges can add as much again, so the fair way to compare gateways is the total on a real invoice in the coin and network your customers actually use. This guide breaks a gateway's bill into its parts, shows published rates for several well-known gateways, and gives a short checklist for comparing them. Rates change, so every figure below has the date it was read. ## What are you actually paying for? A crypto payment usually carries up to five kinds of cost. Not every gateway charges all of them, and some hide one inside another. - Processing fee. A percentage of each paid invoice, sometimes with a fixed amount on top (for example "2% + 25¢"). This is the number most gateways advertise. - Network fees (gas). Every blockchain charges a fee to move coins, paid in its own coin: ETH on Ethereum, TRX on Tron, and so on. The customer pays one when sending; the merchant may pay more when the gateway moves funds to a wallet or sends a payout. These vary with the network and how busy it is, so no honest gateway can promise a fixed figure. - Conversion or swap margin. If a customer pays in one coin and you want to hold another, or want local currency, the exchange rate usually includes a margin. Some gateways show it as a separate percentage; others build it into the rate. - Payout fees and minimums. Some gateways charge to withdraw, or make you wait until your balance reaches a minimum. - Fixed or account fees. Monthly plans, setup fees or minimum volumes. Fewer crypto gateways use them than card processors, but check. ## What do well-known gateways publish? These are the standard rates each gateway published on its own pricing or help pages when we read them. Many offer lower rates on request or at higher volume. | Gateway | Published processing fee | Worth knowing | | NOWPayments | From 1% for single-currency payments; up to 1.5% with multi-currency payments or automatic conversion | Network fees are passed through at cost; lower rates for eligible partners. Source (https://nowpayments.io/pricing), read 5 Nov 2026 | | CoinPayments | 0.5% for coins such as BTC; 1% for tokens such as USDT | Network fees on top; fee adjustments may apply to high-risk industries. Source (https://www.coinpayments.net/v2-fees), read 5 Nov 2026 | | Coinbase Business | 1% for merchants who moved from Coinbase Commerce | Commerce was replaced by Coinbase Business, available to registered businesses in the US and Singapore; USDC only at the time of reading. Source (https://help.coinbase.com/en/transitioning-from-coinbase-commerce-to-coinbase-business), read 5 Nov 2026 | | BTCPay Server | No processing or subscription fees | Free, open-source, self-hosted software: you run your own server (or use someone else's) and pay network fees. Source (https://docs.btcpayserver.org/BTCPayVsOthers/), read 5 Nov 2026 | | CryptoMerchant | 1% of each paid invoice | Published by Quantumines; see the section below. Source (https://cryptomerchant.online/pricing), read 6 Nov 2026 | Each of these suits a different merchant. BTCPay Server is the cheapest on paper and gives you full control of your keys, which is ideal if you are comfortable running a server. Coinbase Business adds bank off-ramps and accounting integrations, which matter to a registered US or Singapore business. Gateways like NOWPayments and CoinPayments support many more coins. The cheapest headline rate is not automatically the cheapest gateway for you. ## How do you compare the real cost? Take one invoice you expect to send often, say $100 in USDT, and work out what reaches you under each gateway: - Start with the processing fee. At 1%, $1 goes to the gateway; at 2% + 25¢, $2.25. - Add conversion if you need it. If you want to hold one coin while customers pay in several, check whether the rate jumps (for example from 1% to 1.5%) or a swap margin applies. - Add the network fees you pay. Ask who pays for moving funds into your wallet and for payouts, and on which network. USDT on Tron and on Ethereum can cost very different amounts to move. - Check payouts. A free payout with a high minimum can still cost you, because your money waits. - Check what you have to provide. Some gateways need a registered business and verification before you can go live, others do not. That is not a fee, but it decides whether you can use the gateway at all. ## Which mistakes make crypto payments more expensive? - Accepting only an expensive network. If customers can only pay on a busy network, they pay more and some abandon the checkout. Offer the networks your customers already use. - Converting every payment by default. Automatic conversion is convenient but often costs extra on each payment. Only convert what you need to. - Ignoring underpayments. Some wallets subtract their own fee from what they send. Decide in advance how much of a shortfall you accept. - Comparing only the headline rate. A 0.5% gateway with a large payout fee can cost more than a 1% gateway without one. - Forgetting tax records. Crypto income is usually taxable and rules differ by country. Keep the statements your gateway gives you and ask an accountant where you are. This guide is not tax or legal advice. ## What does CryptoMerchant charge? Disclosure: CryptoMerchant is built and run by Quantumines, the studio that publishes this guide. CryptoMerchant (https://cryptomerchant.online) lets businesses accept crypto payments with invoices, payment links, hosted checkout and an API. Its pricing page lists every cost in one table: | Cost | CryptoMerchant | | Processing fee | 1% of the amount credited, taken in the coin the customer paid with; the same rate for every business | | Monthly or setup fee | None | | Expired or cancelled invoices | Nothing | | Payouts | Any time, no minimum; a gas fee for each payout | | Swaps into one holding coin | Optional; live market rate including a 1% service margin, plus a gas fee | | New XRP and TON addresses | A one-off activation fee per new address | | Coins | 23 coins on 11 networks | It is custodial (it holds the keys) and pays out in crypto only, with no bank settlement, so it does not suit a business that needs money to land in a bank account. There are no shop plugins such as WooCommerce or Shopify yet; you use payment links, hosted checkout or the REST API. Its pricing page (https://cryptomerchant.online/pricing) has a fee calculator that sets the same invoice against other gateways' published rates. Facts from cryptomerchant.online, checked on 6 November 2026. ## Frequently asked questions ### What is a normal fee for a crypto payment gateway? Published standard rates mostly sit between 0.5% and 2% per payment, plus network fees. Self-hosted software can be free apart from your server and network fees. ### Are crypto payments cheaper than card payments? Often, because many card processors charge a percentage plus a fixed amount per payment and crypto has no chargebacks. But conversion margins and network fees can narrow the gap, so compare totals, not headlines. ### Who pays the network fee? The customer pays to send. The merchant may pay again when the gateway moves funds to a wallet or sends a payout. Ask each gateway exactly which transfers you pay for. ### Does the fee go down with volume? At some gateways it does, on request or by tier; others charge everyone the same rate. CryptoMerchant charges 1% to every business. Related: How can I accept USDT payments on my website without writing code? (https://quantumines.com/answers/accept-usdt-payments-without-code) More from Quantumines: short answers (https://quantumines.com/answers), facts about the studio (https://quantumines.com/facts), and quantumines.com. --- # News: Stripe lets US businesses pay out stablecoins to crypto wallets in 160+ markets URL: https://quantumines.com/blog/news-stripe-stablecoin-payouts-crypto-wallets Published: 2026-11-06 · Last checked: 2026-11-06 Stripe's Global Payouts product can now send USDC and OUSD stablecoins straight to recipients' own crypto wallets, in public preview for US businesses, according to Crypto Briefing on 4 November 2026. New York businesses are on a waitlist. It is a sign that stablecoin payouts are becoming a normal option next to bank transfers. Stripe has added crypto wallets as a payout destination in Global Payouts, its product for paying sellers, contractors, creators and other third parties. US businesses can now send the dollar stablecoins USDC and OUSD directly to wallets their recipients control, in more than 160 markets, according to Crypto Briefing's report of 4 November 2026. The feature is in public preview, and businesses based in New York are on a waitlist for now. ## What changed? Global Payouts already sent money to bank accounts (through local bank networks, Fedwire or SWIFT) and to debit cards. Stripe's own documentation now lists crypto wallets alongside those options, and says the product reaches more than 160 markets. Global Payouts runs on Stripe Treasury: a business funds a Treasury balance and pays out from it. Crypto Briefing reports the details of the wallet option: - Two stablecoins: USDC, and OUSD, a dollar stablecoin used across Stripe's financial products. - USDC payouts run on networks including Arbitrum, Avalanche and Ethereum; OUSD on Base and Ethereum. - Businesses can fund payouts from USD or USDC balances, with Stripe handling any conversion, and do not need to build their own blockchain integration. - Funds typically arrive in minutes. Stripe's documentation lists Global Payouts as available to businesses in the United States and the United Kingdom, with a private preview for businesses in Australia and much of the EU. The wallet option itself is described as US-only for now. ## Why does it matter? Stripe is one of the largest online payment companies, and it has been building stablecoin features for some time: accepting stablecoin payments that settle in fiat, holding stablecoins in Treasury, and, from late October, converting stablecoins to local currency for bank payouts. Paying straight to a recipient's wallet completes the loop. For a freelancer or seller abroad, it means a US platform can pay them in dollars on a blockchain within minutes instead of waiting for an international bank transfer. The practical points for anyone receiving such payouts are the same as for any stablecoin transfer: check which coin and which network the sender will use, and give an address that supports that exact network. A wallet or exchange account that accepts USDC on Ethereum does not necessarily accept USDC sent on Base. Rules on holding and reporting stablecoin income vary by country. ## How does this relate to CryptoMerchant? CryptoMerchant (https://cryptomerchant.online), built by Quantumines, works on the other side of the same trend: it lets businesses accept crypto payments, including USDC and USDT, with invoices, payment links, hosted checkout and an API, and pays out in crypto only. It does not offer bank payouts like Stripe's. ## Sources - Crypto Briefing: Stripe lets US businesses send stablecoin payouts to crypto wallets in 160-plus markets (https://cryptobriefing.com/stripe-stablecoin-payouts-crypto-wallets/) (4 November 2026) - Stripe documentation: Global Payouts (https://docs.stripe.com/global-payouts) (read 6 November 2026) This is a news summary, not investment advice. Published by Quantumines (https://quantumines.com). --- # How are proxies used for price monitoring and SEO rank tracking? URL: https://quantumines.com/blog/proxies-price-monitoring-seo-rank-tracking Published: 2026-11-06 · Last checked: 2026-11-06 Proxies let a price tracker or rank checker load public pages as a visitor in a chosen country or city would, and spread many requests over many IP addresses. Use datacenter proxies for open sites and speed, residential proxies when a site shows local results or blocks servers, and always respect rate limits and the site's terms. Price monitoring and SEO rank tracking both need the same thing: to see a public page the way an ordinary visitor in a particular place sees it, many times a day. A proxy routes each request through an IP address in the country, state or city you pick, so a price tracker sees local prices and stock, and a rank checker sees local search results. Datacenter proxies are the cheap, fast choice for open sites; residential proxies are for sites that localise heavily or refuse server traffic. This guide explains how each job works, which proxy type fits, what it costs to run, and the rules that keep the work legitimate. ProxyFall facts were checked on proxyfall.com on 6 November 2026. ## Why does price monitoring need proxies at all? Online shops and marketplaces often show different prices, currencies, stock and delivery options depending on where the visitor appears to be. If you sell in several markets, or compete with sellers who do, the price you see from your office is only one version of the page. A proxy in each market shows you the others. The second reason is volume. Checking a few thousand product pages several times a day from one IP address looks like one very busy visitor, and many sites slow down or block that. Spreading the same requests across many IPs, at a polite rate, keeps the data flowing without hammering the site. ## Why does SEO rank tracking need proxies? Search results are personal and local. Someone searching "plumber" in Houston sees different results from someone in Dallas, and both differ from what you see. Rank trackers use proxies located in the target city so the result they record is the one local searchers actually get. Agencies tracking hundreds of keywords across many cities need that location control for every check. If you only want to know how your own site ranks, you may not need proxies. Google Search Console (https://search.google.com/search-console) and Bing Webmaster Tools show your average position, impressions and clicks per query for free. Proxies matter when you need city-level snapshots or want to see competitors' positions too. ## Residential or datacenter: which proxy type fits each job? | Job | Usually works with | Why | | Price checks on open shop pages and public APIs | Datacenter | Fast and cheapest per GB; many sites don't mind server traffic at a polite rate | | Marketplaces that localise prices or block servers | Residential | Home IPs look like ordinary shoppers, with city or ISP targeting | | Country-level rank checks | Datacenter or residential | Country targeting is often enough; test both | | City-level local search results | Residential | Local results depend on a believable location in that city | A good rule: start with datacenter proxies, measure how many requests fail or return a block page, and move only the failing targets to residential. Residential traffic costs more per GB, so you pay for it only where it makes a difference. Our sister guide on ProxyFall's guide page (https://proxyfall.com/guides) covers residential vs datacenter in more depth. ## Should each check get a new IP or keep the same one? For independent page loads (one product page, one search) a rotating IP, new on each request, spreads the load best. Use a sticky session, the same IP for a set time, when a check spans several steps that belong together: choosing a delivery postcode and then reading the shipping price, or paging through results for one keyword. ## How much traffic does monitoring use? Proxies are usually billed per gigabyte, so the size of the pages decides the cost. A full product page with images and scripts can be several megabytes; the same page fetched as HTML only is often a small fraction of that. Three habits cut traffic dramatically: - Fetch HTML, not the whole page. Skip images, fonts and video unless you need them. In a headless browser, block those resource types. - Use a public JSON endpoint or feed when the site offers one and allows its use. - Check only what changes. Fast-moving products hourly, the long tail daily or weekly. Measure a sample of real requests for a day, multiply out, and buy for that. If your volume swings from month to month, prepaid traffic that never expires avoids paying for gigabytes you don't use; see does proxy bandwidth expire? (https://quantumines.com/answers/does-proxy-bandwidth-expire) ## What are the rules for doing this legitimately? - Collect public data only. Never get past logins, paywalls or other access controls to reach data you aren't allowed to see. - Respect rate limits. Spread requests over time and keep concurrency low per site. A monitor that slows a shop down hurts the business you are studying. - Read the site's terms and robots.txt, and take advice on the law where you and the site operate, especially if pages contain personal data. - Prefer official APIs where a site or search engine offers one for this purpose, even if it costs more. Reputable proxy providers publish an acceptable-use policy. ProxyFall's policy (https://proxyfall.com/acceptable-use) lists price monitoring, public data collection and research as allowed, and bans fraud, account takeover and getting past access controls. ## What are the alternatives to running your own proxies? You don't always need to manage proxies yourself. Commercial rank trackers and SEO suites include the proxy layer in their price; SERP APIs return search results as structured data; and price-intelligence services deliver competitor prices as a report. These cost more per check but save engineering time. Running your own scraper with proxies makes sense when you need custom targets, high volume or full control of the data. Among proxy providers, compare price per GB at your real volume, whether traffic expires, whether city and ISP targeting cost extra, and which payment methods you can use. ProxyFall publishes a dated price comparison with sources at proxyfall.com/compare; check each provider's own pricing page before you buy. ## What ProxyFall offers for this work Disclosure: ProxyFall is built and run by Quantumines, the studio that publishes this guide. | Item | ProxyFall, 6 Nov 2026 | | Residential | From $0.86/GB at 1,000+ GB; $0.99/GB for 1–49 GB; 150+ countries | | Datacenter | From $0.58/GB at 1,000+ GB; $0.69/GB for 1–49 GB; 140+ countries | | Targeting | Country, state, city and ISP, included in the price | | Sessions | New IP per request, or sticky for up to 24 hours | | Traffic | Prepaid, no subscription, never expires | | Payment | Card, USDT, USDC or BTC; 250 MB free with a first $5 deposit | ## Frequently asked questions ### Is it legal to monitor competitors' prices with proxies? Collecting publicly shown prices is common practice, but the rules depend on the country, the site's terms and whether personal data is involved. Stay on public pages, keep request rates polite, and take local legal advice for large projects. This guide is not legal advice. ### Do I need residential proxies for rank tracking? For country-level checks, datacenter proxies often work. For city-level local results, residential proxies in that city give a more faithful picture. ### How often should I check prices? As often as the prices actually change. Hourly for fast-moving products, daily or weekly for the rest. Checking more often than that mostly costs traffic. ### Can I see my own rankings without proxies? Yes. Google Search Console and Bing Webmaster Tools show your site's average positions per query for free. ProxyFall is built by Quantumines (https://quantumines.com), the product studio founded by Muhammad Ali Raza (Ali Arbi) in Lahore, Pakistan. See prices at proxyfall.com, or read what Quantumines builds (https://quantumines.com/blog/what-is-quantumines). --- # How do you read RSI and MACD on a crypto chart? URL: https://quantumines.com/blog/read-rsi-macd-crypto-charts Published: 2026-11-05 · Last checked: 2026-11-05 RSI tells you how strong recent price moves have been on a 0 to 100 scale; MACD tells you whether short-term momentum is speeding up or slowing down compared with the longer trend. Read them together, on closed candles and with the bigger trend in mind, and treat them as context, not as buy or sell buttons. RSI (Relative Strength Index) measures how strong recent price moves have been on a scale of 0 to 100; MACD (Moving Average Convergence Divergence) shows whether short-term momentum is speeding up or slowing down compared with the longer trend. Used together, on closed candles and with the bigger trend in mind, they help you describe what a chart is doing. They do not tell you what it will do next. This guide explains what each line on the chart means, the common ways traders read them, the mistakes beginners make, and how to practise without risking money. It is educational only: nothing here is a recommendation to buy or sell anything. ## What does RSI actually measure? RSI was introduced by J. Welles Wilder in 1978. It compares the size of recent up-moves with recent down-moves over a set number of candles, usually 14, and turns the result into a number between 0 and 100. - Above 50: up-moves have been bigger than down-moves over the period. Momentum leans up. - Below 50: down-moves have dominated. Momentum leans down. - Above 70: traditionally called "overbought": price has risen fast. - Below 30: traditionally called "oversold": price has fallen fast. The labels are misleading. "Overbought" does not mean "about to fall". In a strong trend, RSI can stay above 70 for days while price keeps climbing, and below 30 while it keeps sliding. Many traders find the 50 line more useful than 70 and 30: it tells you which side has had the upper hand. ## What do the three parts of MACD mean? MACD, developed by Gerald Appel in the late 1970s, is built from moving averages of price. With the standard settings (12, 26, 9) you see three things: - The MACD line: the 12-period exponential moving average minus the 26-period one. When it is above zero, the short-term average is above the longer one. - The signal line: a 9-period average of the MACD line, so a slower, smoother copy of it. - The histogram: the gap between the two lines. Bars growing taller mean momentum is accelerating; bars shrinking toward zero mean it is fading. A bullish cross is the MACD line moving above the signal line; a bearish cross is the opposite. A cross of the zero line means the 12- and 26-period averages themselves have crossed. Because MACD is made of averages, it always reacts after price has moved. That lag is the price of its smoothness. ## How do you read RSI and MACD together? The two indicators answer different questions, so they work best side by side: - Agreement: RSI above 50 and a MACD line above its signal line both say momentum is up. When they agree, the chart is telling a consistent story. - Disagreement: RSI rising while the MACD histogram shrinks often means a move is losing steam. It is a reason to look closer, not a forecast. - Divergence: price makes a new high but RSI makes a lower high (or price makes a new low while RSI makes a higher low). Divergences show momentum not confirming the price move. They can persist for a long time before anything happens, and often nothing does. Always check the timeframe. A 15-minute chart and a daily chart of the same coin can show opposite readings at the same moment. Many traders look at a higher timeframe first to decide the direction of the trend, then use a lower one for detail. ## What are the most common mistakes? - Treating 70 and 30 as sell and buy signals. In trending markets that approach repeatedly fights the trend. - Reading unfinished candles. RSI and MACD on the current, still-open candle change until it closes. A cross you see now can disappear by the close. - Changing settings until the past looks perfect. Settings tuned to fit last month's chart rarely fit next month's. - Ignoring fees and volatility. On small, quick trades, exchange fees take a real share of any gain. Thinly traded coins can make indicators swing wildly. - Using one indicator alone. Both RSI and MACD are calculated from price only. Volume, the wider market and news all matter too. ## How can you practise reading them without risking money? Look back at past charts, mark where RSI and MACD gave readings you would have acted on, and note what happened afterwards. Then test the same rules on many coins and periods, with fees included, before trusting them. Paper trading (practising with pretend money at live prices) lets you see how you react in real time. Remember that past results do not predict future ones. ## Where else can you use RSI and MACD? Both indicators are standard. Most charting sites, including TradingView and the charts built into large exchanges such as Binance, include them, and the readings are the same wherever the settings and data are the same. If you already use one of those and are happy, there is no need to switch. What differs between tools is everything around the chart: how many coins you can scan at once, whether you can set alerts on indicator values, and whether you can test a rule with fees included. ## How Hunt4Coin shows RSI and MACD Disclosure: Hunt4Coin is built and run by Quantumines, the studio that publishes this guide. Hunt4Coin (https://hunt4coin.com) is a free crypto market website. RSI and MACD are among the 28 indicators you can add to its exchange candle charts, each with its own inputs and levels. The same indicators feed its other tools: | Tool | What it does with RSI and MACD | | Scanner (https://hunt4coin.com/scanner) | Checks the top coins by market cap on the 15-minute, 1-hour, 4-hour and daily charts for RSI (14), Stoch RSI, the MACD histogram and the number of bars since the last MACD cross. Ready-made scans include oversold RSI and fresh MACD cross. | | Alerts (https://hunt4coin.com/docs/alerts) | Alerts on RSI, MACD and other indicators on any timeframe, checked on closed candles, sent to Telegram, Discord, email or the browser. Up to 200 alerts. | | Backtester (https://hunt4coin.com/backtest) | Tests entry and exit rules built from indicators on past candles, with exchange fees included. | | Paper trading (https://hunt4coin.com/paper-trading) | Practise with pretend money at live exchange prices, with 0.1% fees per side. | Its free signals (https://hunt4coin.com/signals) show one way RSI can be used as a filter rather than a trigger: a coin is listed only when it is in a daily and 1-hour uptrend with the 1-hour RSI at 54.01 or more and the 30-minute RSI at 55.01 or more, and it leaves the list when the 1-hour RSI reaches 70. Every signal is logged and judged automatically on a public track record (https://hunt4coin.com/signals/track-record). Hunt4Coin never places real trades and never asks for exchange API keys. It is information only, not financial advice. Facts from hunt4coin.com, checked on 5 November 2026. ## Frequently asked questions ### What are the best RSI settings for crypto? The standard is 14 periods with levels at 70 and 30. Some traders use shorter periods for more sensitive readings, which also gives more false alarms. There is no setting that works on every coin and timeframe. ### Is a MACD cross a buy signal? Not on its own. A cross says the short-term average has moved relative to the longer one; it lags price and produces many crosses in sideways markets. Traders usually look for confirmation from the trend, volume or another indicator. ### Which timeframe should I use? The one that matches how long you plan to hold. Readings on short timeframes change quickly; daily readings change slowly. Checking a higher timeframe first gives context. ### Do RSI and MACD work on every coin? They can be calculated on any coin with price history, but on thinly traded coins a few large orders can move them sharply, so readings are less reliable. ### Where can I see both for free? Most charting sites include them free. On Hunt4Coin (https://hunt4coin.com) you can also scan and set alerts on them at no cost. More from Quantumines: short answers (https://quantumines.com/answers), facts about the studio (https://quantumines.com/facts), and quantumines.com. --- # News: XRP Ledger set to fix a bug that let token-burning delegates mint new tokens URL: https://quantumines.com/blog/news-xrp-ledger-fix-token-burn-permission Published: 2026-11-03 · Last checked: 2026-11-03 An XRP Ledger amendment, fixCleanup3_4_0, is due to activate around 4 November 2026. It closes a loophole where an account allowed only to burn an issuer's tokens could mint new ones. XRP itself is not affected, and no exploit has been reported. The XRP Ledger is expected to switch on a fix around 4 November 2026 for a bug in its delegated-permissions feature. Before the fix, an account that a token issuer had allowed only to burn its tokens could, in some circumstances, mint new ones. The bug concerns tokens issued on the ledger, such as stablecoins; XRP's own supply is not affected, and no exploit has been reported. ## What happened? The XRP Ledger lets an account hand narrow permissions to another account, for example letting a payments partner burn (destroy) tokens when customers redeem them. A flaw in how one of those permissions, called PaymentBurn, was implemented meant the delegate could also create new fungible tokens (trust-line tokens or MPTs) under certain conditions. The fix ships in an amendment named fixCleanup3_4_0. The ledger's official amendment list now carries a warning telling issuers not to delegate the PaymentBurn permission until the fix is enabled, and notes that other granular permissions are unaffected (xrpl.org, Known Amendments (https://xrpl.org/resources/known-amendments)). According to CoinDesk's report of 2 November (https://www.coindesk.com/tech/2026/11/02/xrp-ledger-set-to-fix-flaw-that-could-let-stablecoin-partners-print-new-tokens), the amendment had the support of 33 of 35 tracked validators. XRP Ledger changes need more than 80% support held for two uninterrupted weeks. The fix was first due on 23 October, but support briefly dipped on 21 October, which restarted the two-week clock. The earliest activation was put at about 14:46 UTC on 4 November, if support holds. CoinDesk found no public record of the flaw being exploited. The same package also corrects calculations in the ledger's trading pools, vaults and lending features. ## Why does it matter? Stablecoins are only as trustworthy as the rules on who can create them. A token's issuer is supposed to be the only party that can add supply; a partner that redeems tokens should only be able to remove them. This bug blurred that line for anyone who had used the new delegation feature in a particular way. For most people sending or receiving XRP, nothing changes. For businesses that issue tokens on the XRP Ledger, or that rely on partners to redeem them, the practical steps are simple: do not grant the PaymentBurn permission until the amendment is live, and review any delegations already in place. It is also a useful reminder of how public blockchains change. Upgrades on the XRP Ledger only take effect after validators vote for them over a sustained period, so a fix can be known and published days or weeks before it is active. Anyone building on a network should follow its official amendment or upgrade notices, not just price news. ## What does this mean for CryptoMerchant users? CryptoMerchant (https://cryptomerchant.online) lists XRP on the XRP Ledger among the networks it accepts. The bug does not affect XRP itself, so XRP payments are not touched by it. ## Sources - CoinDesk: XRP Ledger set to fix flaw that could have let stablecoin partners print new tokens (https://www.coindesk.com/tech/2026/11/02/xrp-ledger-set-to-fix-flaw-that-could-let-stablecoin-partners-print-new-tokens) (2 November 2026) - XRP Ledger documentation: Known Amendments (https://xrpl.org/resources/known-amendments) (read 3 November 2026) This is a news summary, not investment advice. Published by Quantumines (https://quantumines.com). --- # How do I review my chess games for free with Stockfish? URL: https://quantumines.com/blog/review-chess-games-free-stockfish Published: 2026-11-03 · Last checked: 2026-11-03 Paste or open the game in a free analysis tool that runs Stockfish, start at the moments where the evaluation swings, and turn each mistake into one lesson. ChessMess and Lichess both do this free; Chess.com's free plan allows one full review a day. You can review every chess game you play for free: open it, or paste its PGN, in a tool that runs the Stockfish engine, then go straight to the few moves where the evaluation swings and ask what you missed. ChessMess and Lichess both offer this without paying; Chess.com's free plan includes one full game review a day. This guide explains which free tools exist, how to move a game from one site to another, and a five-minute routine that turns a review into something you remember. Facts about each site were checked on their own pages on 3 November 2026. ## What does a free Stockfish review actually give you? Stockfish is the open-source chess engine that most review tools are built on. A review runs it over every move of your game and compares what you played with what the engine prefers. Good review tools turn that raw output into four things a human can use: - An accuracy score for each player, usually 0 to 100. It is most useful for comparing your own games with each other. - Move labels such as Best, Inaccuracy, Mistake and Blunder, so you can see at a glance where things went wrong. - An evaluation graph showing who was better after each move. The big jumps are the turning points. - Better lines: the move the engine would have played, and how the game might have continued. ## Which sites let you review games with Stockfish for free? | Site | Free review limit | Engine | Worth knowing | | ChessMess (https://chessmess.online/guide/game-review) | Unlimited full reviews | Stockfish 19, running in your browser | Move labels from Brilliant to Blunder, key moments, a performance estimate and plain-language explanations. Paste a PGN into the analysis board to review games from other sites. | | Lichess (https://lichess.org/features) | Unlimited analysis board and cloud analysis; deep server analysis for 40 games a day | Stockfish 19 | No ads and no tracking, plus "Learn from your mistakes", studies, an opening explorer and a 7-piece tablebase, all free. | | Chess.com (https://support.chess.com/en/articles/8562418-what-does-each-level-of-membership-get-me) | 1 full game review a day on the free Basic plan | Chess.com's own review built on engine analysis | Unlimited Game Review starts on the paid Platinum plan; coach explanations on every move come with Diamond. | Each has real strengths. Lichess is the most complete free study toolkit and has no ads anywhere. Chess.com has the largest community, so many players' games already live there. ChessMess focuses on explaining moves in plain words and has no daily cap on full reviews, because the engine runs on your own device rather than on a server. ChessMess does show small ads on some menu pages, never during games. ## How do I move a game from Chess.com or Lichess into another tool? Every serious chess site can export a game as a PGN (Portable Game Notation): a short text file listing the moves. Any review tool can read it. - From Chess.com: open the finished game, click the Share icon at the bottom of the Analysis tab, choose the PGN tab and click Download (Chess.com help (https://support.chess.com/en/articles/8705305-how-do-i-get-a-pgn-of-my-game)). You can also tick several games in your Game History and download them together. - From Lichess: any game can be downloaded or uploaded as PGN on a free account (Lichess features (https://lichess.org/features)). - Into ChessMess: open the analysis board (https://chessmess.online/analysis) and paste the PGN. You get up to five engine lines, arrows and opening names, and you can export the PGN again when you are done (analysis board guide (https://chessmess.online/guide/analysis-board)). Games you play on ChessMess itself appear under My games and can be reviewed straight away, as many times as you like. Guests keep games in the browser; a free account saves them across devices. ## How do I review a game in five minutes? Most players waste reviews by clicking through every move. Engines label dozens of small slips that do not matter at club level. A short, focused routine works better: - Look at the graph first. Find the two or three biggest swings. That is where the game was decided. - Before reading the engine's answer, guess. At each turning point, ask what you missed: a check, a capture, a threat? Commit to an answer. - Then check the better move and play the engine's line forward a few moves until you understand why it works. - Write down one pattern, in your own words: "check for knight forks before moving my queen." One lesson per game is enough. - Revisit your mistakes later. Lichess has "Learn from your mistakes" inside each analysis; ChessMess has a mistake trainer that collects errors from all your reviewed games and brings them back on a spaced-repetition schedule. ## What should I ignore in an engine review? - Tiny evaluation changes. Going from +0.4 to +0.2 is not a real mistake for most players. - Accuracy against other people. A quiet, closed game produces a higher accuracy than a sharp tactical one. Compare your own games over time instead. - Engine moves you could never find. If the best move needs a 15-move calculation, note it and move on. Fix the mistakes you can learn from first: hanging pieces, missed checks, ignored threats. ## Is running Stockfish in the browser as good as a server? For reviewing your own games, yes in practice. Browser engines are slower than a large server, so very deep analysis takes longer, but at the depths a review needs, the engine's verdict on your mistakes is the same. The advantage is that there is no per-review cost, which is why ChessMess can offer reviews without a daily limit, and your analysis stays on your device. Lichess uses both: an unlimited in-browser board plus a deeper server analysis with a daily allowance. ## Frequently asked questions ### Is Chess.com Game Review free? Partly. The free Basic plan includes 1 full game review per day. Unlimited Game Review needs a paid Platinum or Diamond membership. ### Can I review a Chess.com game on another site? Yes. Download the game's PGN from Chess.com and paste it into the Lichess or ChessMess analysis board. ### Which Stockfish version do free tools use? On 3 November 2026, ChessMess and the Lichess website both listed Stockfish 19. ### Do I need an account to review games on ChessMess? No. Guests can play and review games in the browser. A free account keeps your games and ratings on every device. ChessMess is built by Quantumines (https://quantumines.com), the product studio founded by Muhammad Ali Raza (Ali Arbi) in Lahore, Pakistan. Try a review at chessmess.online, or read what Quantumines builds (https://quantumines.com/blog/what-is-quantumines). --- # What is Quantumines? One studio, six live products from Lahore URL: https://quantumines.com/blog/what-is-quantumines Published: 2026-11-02 · Last checked: 2026-11-09 Quantumines is a technology and product studio from Lahore, Pakistan, founded by Muhammad Ali Raza (Ali Arbi). Here is what it builds, who is behind it, and how each of its six products works. Quantumines is a technology and product studio from Lahore, Pakistan, founded by Muhammad Ali Raza, known online as Ali Arbi. It designs, builds and runs its own internet products, six of them live today, and builds websites, apps and integrations for other businesses. This post is the plain-English introduction: who is behind Quantumines, what each product does, and what the studio offers clients. ## Who founded Quantumines? Quantumines was founded by Muhammad Ali Raza (Ali Arbi). It started as one independent developer in Lahore building products end to end: the idea, the design, the code, the servers and the day-to-day running. Every product below was designed, built, launched and is maintained by the studio. ## What products does Quantumines run? Six products are live. They sit in three areas: market tools, business infrastructure, and play. | Product | What it does | Key facts | | Hunt4Coin (https://hunt4coin.com) | Free crypto prices, candle charts and screener for 5,000+ coins. | Exchange candle charts from sources such as Binance and Coinbase; RSI and MACD; screener; price alerts; backtesting | | TwapTrade (https://twaptrade.com) | A prediction market for trading on the outcome of real-world events. | Markets on politics, sports, crypto, finance and culture; each side trades between 1¢ and 99¢ and a winning share pays $1; trading is not available in restricted jurisdictions such as the US, UK and France | | CryptoMerchant (https://cryptomerchant.online) | Accept crypto payments with invoices, payment links, hosted checkout and an API. | 23 coins on 11 networks; 1% per paid invoice; free setup; payouts any time, no minimum | | ProxyFall (https://proxyfall.com) | Residential and datacenter proxies with traffic that never expires, paid by card or crypto. | Residential from $0.86/GB; datacenter from $0.58/GB; 250 MB free with a first $5 deposit; country, city, state and ISP targeting; pay by card or in USDT, USDC or BTC | | VerifDoc (https://verifdoc.net) | One console for VoIP numbers, SMS verification, branded email and proxies. | US mobile numbers for SMS verification; branded email and a unified inbox; one prepaid balance | | ChessMess (https://chessmess.online) | Free chess with human-like bots and a coach that explains every move. | 19 human-like bots; unlimited Stockfish game reviews; play friends by link, code or QR; no ads during games (how to review your games free (https://quantumines.com/blog/review-chess-games-free-stockfish)) | ### Markets: Hunt4Coin and TwapTrade Hunt4Coin is for looking at the crypto market: live prices, exchange charts with indicators such as RSI and MACD, and a screener to narrow thousands of coins down to the few worth a closer look. TwapTrade is a prediction market: every market is a question with a deadline, prices act as live odds, and a winning share pays $1 when the market settles. Users keep their funds in their own self-custody wallet, and trading is not available in restricted jurisdictions such as the US, UK and France. Neither product gives buy or sell advice. What's changed (9 November 2026): TwapTrade replaced its earlier trading workspace (bot controls, portfolio tracking and paper trading) with a prediction market this month. This post now describes the live site. ### Business infrastructure: CryptoMerchant, ProxyFall and VerifDoc CryptoMerchant lets a business take crypto the way it takes card payments: send an invoice, share a payment link, use a hosted checkout page, or integrate through the API. ProxyFall sells residential and datacenter proxies for work such as price monitoring, SEO rank tracking and research, billed per gigabyte with traffic that does not expire. VerifDoc puts virtual phone numbers, SMS verification, branded email and proxies behind one prepaid balance, so a small team manages them in one place. ### Play: ChessMess ChessMess is a free chess site without ads. Its 19 bots are tuned to play like people rather than engines, a coach explains moves as you play, and every game can be reviewed with Stockfish as often as you like. You can also invite a friend with a link, a code or a QR code. ## What does Quantumines build for clients? The same team that runs these products builds for other businesses: - Digital products: websites, apps and platforms, from a focused site to a custom business application. - Connect and improve: API integrations, workflow automation, dashboards and improvements to existing software. - Long-term partnership: product collaborations, technical partnerships and ongoing maintenance. - Restaurant ordering: a managed website and direct-ordering service for restaurants, with a 5% platform fee on direct orders (payment processing and delivery costs are separate). Work follows four steps: discover the goal, define the scope, build it, then keep improving it. ## Frequently asked questions ### Where is Quantumines based? Lahore, Pakistan. The studio works with clients worldwide. ### Who is Ali Arbi? Ali Arbi is the name Muhammad Ali Raza, the founder of Quantumines, uses online. ### Are the Quantumines products free? ChessMess is free, and Hunt4Coin's live crypto prices are free. CryptoMerchant charges 1% per paid invoice. ProxyFall and VerifDoc are prepaid: you pay for what you use. ### How do I contact Quantumines? Email hello@quantumines.com or use the form on quantumines.com (https://quantumines.com/#contact). For help with a product, use that product's own website.