Crypto
A collection of 58 posts
What is a blockchain? A shared record many computers keep, and hard to change
A blockchain is a shared record many computers keep, with no bank holding the only copy. Learn how entries are checked and why changes are hard.
· ZIPMEX
Custodial vs. non-custodial wallets: who holds your keys, and what each one risks
A custodial wallet lets a third party hold your keys; a non-custodial wallet leaves them to you. See the recovery, privacy and risk trade-offs by source.
· ZIPMEX
What Is the Crypto Fear and Greed Index? What the 0 to 100 Score Measures
The crypto fear and greed index scores market sentiment from 0 to 100. See how CFGI, CoinAnk and CoinMarketCap build theirs and how to read a score.
· ZIPMEX
What Is Ethereum? How the Network, Ether and Smart Contracts Work
Ethereum in plain English: the network, its asset ether, smart contracts, gas fees, a stake of at least 32 ETH, and dated milestones from 2013 to 2022.
· ZIPMEX
What Is an Order Book in Crypto and How Does It Match Trades?
An order book lists every buy and sell order in a market. See how trades match, what the spread shows, and how market and limit orders differ.
· ZIPMEX
What is impermanent loss in crypto? The gap between a liquidity pool and simply holding
Impermanent loss is the gap between a liquidity pool position and holding the same tokens. See the formula, a $10,000 example and a dollar calculator.
· ZIPMEX
Moving crypto between your own wallets isn't taxable, guides say, but fees and records still matter
Moving crypto between your own wallets is not taxable, four tax guides say. Paying fees in crypto and missing records are where problems start.
· ZIPMEX
Ethereum gas fees: units of gas used times (base fee plus priority fee)
A gas fee is the cost of running an operation on a blockchain. See the Ethereum formula, who sets each part, why fees rise and how to work out a transfer.
· ZIPMEX
Bitcoin as a store of value: the definition, the 21 million cap and the volatility objection
A store of value must keep its worth over time. How bitcoin's 21 million coin cap and the volatility objection stand up, with Bernstein's June 2026 view.
· ZIPMEX
Security.org advises holding crypto on an exchange only while trading, and Own Your Online advises offline wallet backups
Where to keep crypto and how to back it up: Security.org, bitcoin.org and Own Your Online on exchanges, own keys, cold storage and offline wallet backups.
· ZIPMEX
Public keys let crypto arrive; private keys sign and spend it
Public keys receive crypto and verify signatures. Private keys sign and spend. What ssh.com, CertiK and Coin Bureau say about sharing, derivation and risk.
· ZIPMEX
Staking vs yield farming: hands-off network security or active, riskier DeFi yield
Staking locks tokens to help secure a network; yield farming deposits crypto in DeFi protocols. Compare source rate ranges, risks and a one-year calculator.
· ZIPMEX
Bear flag pattern: how the target is set and what it does not predict
A bear flag is a sharp fall, a smaller pause and a possible break lower. See how its target is calculated and why it is not a forecast.
· ZIPMEX
Crypto day trading: how a trade works, what it costs and three checks first
What crypto day trading is, how one trade runs from signal to record, which costs decide the result, and three checks to pass before risking money.
· ZIPMEX
Tether invests in EFY Finance seed round; release says bank-issued USA₮ lacks government-agency insurance
Tether joined EFY Finance's seed round on Oct. 13. What the release says EFY offers, and its note that bank-issued USA₮ lacks government-agency insurance.
· ZIPMEX
Crypto tax: what triggers reporting and which IRS forms apply
IRS rules on crypto tax: why a sale at a loss still gets reported, when you can answer No, and where Form 8949 and Schedule 1 fit.
· ZIPMEX
How to Use a Blockchain Explorer: Match the Chain, Search the TxID, Check the Address
A blockchain explorer looks up crypto transfers. See why the chain decides which explorer to use, how to search a TxID and what each status means.
· ZIPMEX
Crypto liquidation risk: in MenthorQ's example, a drop of about 10% ends a 10x long
How crypto liquidation works: the three inputs behind a liquidation price, a worked 10x example, stop losses, cross margin and what the guides leave out.
· ZIPMEX
Calendars list AlloX ICO for Oct. 12 and Gacha Galaxy IDO for Oct. 13
AlloX, Gacha Galaxy, OROROX and Metta Protocol dates from three token-sale calendars as of Oct. 11, 2026, with what a calendar listing does not confirm.
· ZIPMEX
Coin Bureau calls Pi Network real in the basic sense, but selling PI depends on KYC and migration
Coin Bureau says some users can sell PI. They usually need KYC, Mainnet migration, exchange access, enabled deposits and enough liquidity.
· ZIPMEX
BNB Chain lists zero-fee USDC, USD1 and U routes, plus a USDC bridge rebate, through Oct. 31, 2026
Compare BNB Chain’s listed withdrawal, wallet and USDC bridge terms, including route limits and the Oct. 31, 2026 deadline before choosing a path.
· ZIPMEX
Geth 1.17.8 security fixes: what the release says
Go-Ethereum’s Geth 1.17.8 notes report DoS fixes and Amsterdam-related changes, with a component-by-component guide to the stated scope.
· ZIPMEX
Sui says Samsung Wallet will add USDC for eligible U.S. Galaxy users
Sui says Samsung Wallet will add USDC for eligible U.S. Galaxy devices. See the launch asset limits and the network fee claim.
· ZIPMEX
zkAPI explained: private AI payments on Ethereum hide the payer, not the prompt
zkAPI lets you pay for AI APIs from an Ethereum vault without linking your requests to your payment. How it works, who sees what, and how to try it.
· ZIPMEX
Crypto bull market meaning: two guides define it as prices up at least 20%
A crypto bull market is a rise in prices. CoinLedger and Tangem add a figure of at least 20%. How the guides define it, and where the figure stops.
· ZIPMEX
Free bitcoin cloud mining: FTC warns scammers promise free crypto
Cloud mining rents hash power from a company. What the FTC says about free-crypto promises, and how mining, cloud mining and buying bitcoin compare.
· ZIPMEX
What is a bear market in crypto? A 20% fall from a peak, and crypto has fallen much further
A crypto bear market is conventionally a 20% fall from a recent high. Bitcoin Foundation says crypto bear markets have run roughly one to three years.
· ZIPMEX
How to Create a Crypto Wallet: Recovery Phrase, Backup and a Test Send
Create a crypto wallet in order: official download, phrase on paper, small test send. Also how long the recovery phrase is, from 12 to 24 words.
· ZIPMEX
Best GPU for mining depends on algorithm and power costs, EMCD guide says
There is no single best mining GPU, EMCD's guide says. Compare cards on one algorithm and by hashrate per watt at the wall, then count full rig costs.
· ZIPMEX
Can you buy a Bitcoin ETF in Singapore? Two outlets say yes, through a broker
Two Singapore finance sites say US-listed Bitcoin ETFs can be bought through a broker. No spot Bitcoin ETF was listed on SGX as of 2025.
· ZIPMEX