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.
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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.
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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.
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Lagarde: energy shock too large to look through, but a measured response remains appropriate
Lagarde says the energy shock is too large to look through but a measured response fits. See the ECB's inflation, growth and digital euro dates.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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Apple ML paper: an AI agent's summary tool needs timing rules, authors say
An Apple Machine Learning Research paper pairs an agent's summary tool with a rubric: compact when a sub-task resolves or work converges, wait when stuck.
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Mix or tune? Apple researchers say adding English beat hyperparameter tuning for Arabic pre-training
Apple researchers report that mixing English data into Arabic pre-training beat aggressive hyperparameter tuning. What they found, and the limits.
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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.
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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.
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Microsoft Maia 300 explained: 2027 deployments and a multi-gigawatt plan
Microsoft says Maia 300 production deployments begin in 2027 and Maia 200 already serves Copilot. What the chips are and how to read its efficiency claims.
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NVIDIA and Cisco plan USFP optics: 4× bandwidth claimed, about 1.3× efficiency
NVIDIA and Cisco plan USFP pluggable optics at 400Gb/s per lane. See the claimed 4x density and about 1.3x efficiency, and what is still unverified.
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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.
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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.
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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.
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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.
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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.
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Cloudflare Managed Defense beta: how AI alert reviews work
How Cloudflare says Managed Defense uses scoped evidence, specialist agents and analyst review for eligible application-security alerts and cases.
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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.
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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.
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Waller expects more Fed rate hikes if data come in as expected, with timing left open
Fed Governor Waller said 16 of 18 participants who submitted projections anticipated at least one more hike in the year's two remaining meetings.
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