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SegWit changed how Bitcoin transactions carry signatures, how blocks are measured and how wallets encode addresses. Here is what the 2017 upgrade actually did.

Binance reopened withdrawals in phases after the $6.3 billion theft. The exchange reported $3.64 billion in net outflows during the first nine and a half hours.

Crypto-tied groups have put more than $200 million into the 2026 US midterms. Tuesday's Ohio Senate race, where crypto critic Sherrod Brown is narrowly ahead, is the clearest test of whether that money still works.

Kalshi raised $1 billion at a $40 billion valuation as it expands from prediction markets into crypto, perpetual futures and other exchange products.

The Bank of England is consulting on how UK clearing houses could accept tokenised versions of eligible collateral while maintaining existing risk standards.

The FBI has formally blamed North Korea's TraderTraitor unit for the record $6.3 billion Binance hack, as the exchange reopens withdrawals in phases and says it has covered 95% of the stolen tokens.

Binance says it has replaced 90% of the $6.3 billion stolen in its record hack and aims to reopen withdrawals on 1 November, as the FBI and Secret Service join the investigation.

Polymarket says an outside provider compromise affected its international platform, prompting a trading pause and a reported $3.9 million return plan.

Coinbase earned $718.7 million in Q3, almost all from crypto investment gains, while revenue fell 35%. Prediction markets passed $200 million a year, but shares hit a two-year low.

Learn how Bitcoin Lightning payment channels settle transactions off-chain, route payments, use liquidity and handle fees, custody and recovery risks.

ICE will run Trade[XYZ]'s Hyperliquid-based perpetual futures in a new US-regulated market, pending CFTC approval. HYPE jumped 15% and Stanley Druckenmiller made his first X post to back it.

Binance lost an estimated $6.3 billion on 29 October in the biggest crypto theft yet. About $3 billion is frozen, withdrawals are paused, and investigators blame North Korea's TraderTraitor.

Bitcoin Taproot combines Schnorr signatures, key-path spending and hidden script options. Here is what the upgrade changes—and what it does not.

How Norway treats crypto for tax: when a sale or swap creates a gain, how to work out the cost, how mining is taxed, what to report, and what the new CARF rules change.

How do strangers on an open network agree on one history? A plain guide to the Byzantine generals problem, Byzantine fault tolerance, Nakamoto consensus, orphan blocks and blockchain finality.

Bitcoin Core has published three bugs found by an automated AI scan, including one that lets any peer crash a Windows or Mac node. What they are, what to patch, and why the embargo ended.

The double spend problem is why digital money once needed a bank in the middle. Here is how Bitcoin solves it, why confirmations matter, and how 51% attacks have reversed payments on smaller coins.

An ENS domain turns a wallet address into something readable, like alice.eth. How resolution works, what a .eth name really costs, and what changed when ENSv2 went live on 27 October 2026.

A candle packs four prices into one shape. What the body and wicks record, why a doji is not a signal, and how patterns fail in a market that never closes.

A vanity address is a normal crypto address that starts or ends with characters you chose. Here is how generators find them, why long patterns get expensive, and the security traps to avoid.

A Nasdaq-listed bitcoin treasury company says it has been unable to withdraw coins held at Biconomy since June, and that four sets of financial statements can no longer be relied on.

Address poisoning plants a lookalike address in your transaction history and waits for you to copy it. Here is how the scam works, how big it has become, and the simple checks that stop it.

Hashrate is the closest thing Bitcoin has to a security budget. How the network infers it from difficulty, why it fell in 2026, and what one petahash actually earns.

Liquid staking turns locked ether into a tradable receipt. How stETH earns, why its peg slipped to 0.94 in 2022, and what the advertised yield quietly costs you.

CoinJoin lets several Bitcoin users combine their payments into one transaction without handing over their coins. Here is how it works, how JoinMarket, Wasabi and Whirlpool built it, and where its privacy runs out.

A crypto tumbler mixes coins from many users to break the on-chain trail. Here is how bitcoin tumblers and crypto mixers work, the main types, the legal picture and the real risks of using one.

Bitcoin mining is a lottery with a purpose. How hash power, difficulty and block rewards fit together, with live network numbers and the economics that decide who survives.

A honeypot token lets you buy but blocks you from selling. Here is what a honeypot means in crypto, how the trap is coded into a token contract, the warning signs, and how a honeypot checker helps.

The SEC would let token issuers raise up to $75 million a year on light disclosure and preempt state registration. State regulators used the comment deadline to say no.

A wallet drainer is a phishing script that tricks you into signing away your tokens or NFTs. Here is how crypto drainers work, the signatures they abuse and how to protect your wallet.

A Merkle tree compresses a whole block of transactions into one 32-byte root. How the hashing works, what a Merkle proof can and cannot prove, and the 2012 bug it caused.

A smart contract is a program that runs on a blockchain and moves value by rules nobody can quietly rewrite. Here is how it executes, what it costs, and where the model breaks.

Market cap counts the coins trading today; fully diluted market cap counts every coin that will ever exist. Here is how circulating, total and max supply work, and why the gap matters.

Four days before its Hoodi rehearsal, Ethereum pulled the Glamsterdam upgrade. A security review found 13 deployed contracts where a failed transaction could now record a permanent failure.

Crypto custody decides who controls the private keys behind your coins. Here is how custodial and self-custody setups work, what crypto custodians do, and how to choose.

A DAO keeps its rules and its money in code. Here is how token voting, treasuries, multisigs and legal wrappers actually work, and where the model breaks.

Bitcoin dominance appears in every market recap and gets explained almost nowhere. What the ratio actually measures, why trackers disagree, and what it cannot tell you.

What is a governance token? How crypto governance tokens give holders a vote, how proposals, quorums and delegation work, real examples from Uniswap, Maker/Sky and Compound, and the risks from whale control to governance attacks.

Initia's layer 1 and every rollup have been offline since Friday, after a bug let an attacker mint unbacked tokens and bridge about $2.7 million to Ethereum.

What total value locked measures in DeFi, how TVL is calculated, what trackers leave out, why it swings with token prices, and how to read it without being misled.

The halving cuts new bitcoin issuance in half every 210,000 blocks. Here is what actually changes at block 1,050,000, what it means for miners, and what history cannot tell you.