Bitcoin Hashrate Escrow and Merged-Mined Sidechains
Hashrate escrow lets Bitcoin miners secure sidechains without a second consensus system, the exact mechanism, BIP 300 numbers, and honest caveats included.
№ 002BitcoinSIGHASH_ANYPREVOUT and Eltoo Payment Channels
APO lets eltoo overwrite old channel states without penalty transactions or revocation archives. A concrete look at the mechanism and what blocks deployment.
№ 003BitcoinBitcoin Erlay Fanout Phase: Peer Selection Explained
Erlay's fanout phase pushes transactions to a randomized peer subset, not the whole network. A close look at the mechanism, its privacy logic, and its limits.
№ 004BitcoinBitcoin Output Script Versioning and Covenant Enforcement
How Bitcoin's script versioning lets developers add spending rules without breaking old nodes. The mechanics, tradeoffs, and a worked example.
№ 005BitcoinBitcoin Erlay Protocol: Cutting Node Bandwidth by 40%
Erlay uses set reconciliation to cut Bitcoin node bandwidth ~40%. The mechanism, a worked example, and an honest account of the latency trade-off.
№ 006BitcoinBitcoin Transaction Pinning and Fee Bumping Reliability
Transaction pinning can trap a Lightning channel close at a low fee rate, blocking CPFP and RBF. The mechanics, the stakes, and the fixes underway.
№ 007BitcoinBitcoin Output Scripts and UTXO Set Growth Explained
P2PKH, P2SH, P2WPKH, and P2TR each leave a different footprint on Bitcoin's UTXO set, the tradeoffs affect every full node running today.
№ 008BitcoinBitcoin Dust: Why High-Fee Networks Create It Faster
Small UTXOs become unspendable dust when fees exceed their value. High-fee networks accelerate this faster than most people realise.
№ 009BitcoinBitcoin Mempool Replacement Policies Explained
Bitcoin nodes apply different replacement rules to the same transaction. The mechanics, tradeoffs, and practical fixes for a stuck or rejected bump.
№ 010RegulationCross-Border Crypto Reporting Obligations Explained
Multiple countries can claim reporting rights on one crypto transfer. Thresholds, residency, and asset type can trigger simultaneous obligations.
№ 011BitcoinBitcoin Signet: Controlled Testing Without Testnet Chaos
Signet replaces proof-of-work with a signature check, giving Bitcoin developers stable block times and reproducible test conditions. The mechanism, examined.
№ 012BitcoinBitcoin Node Security: Outbound vs Inbound Connections
Bitcoin Core trusts outbound connections more than inbound, and for precise reasons. The security logic behind that asymmetry, explained for node operators.
№ 013BitcoinBitcoin's Script Version Byte and Soft Fork Upgrades
Bitcoin's one-byte witness version field lets soft forks add new spending rules without invalidating old wallets or splitting the chain.
№ 014AnalysisFinality Reversion vs. Reorganization in Proof-of-Stake
A finality reversion breaks a cryptographic guarantee; a reorg is a race condition. The difference determines whether settlement is statistical or binding.
№ 015BitcoinBitcoin Compact Filters: Private Light Client Sync
BIP 157/158 compact filters let Bitcoin light clients verify transactions locally without exposing addresses to any full node. The mechanism, plainly explained.
№ 016BitcoinBitcoin Anti-Fee-Sniping: Mechanism and Miner Incentives
Anti-fee-sniping uses nLocktime to make block reorgs unprofitable. Learn the exact mechanism, the privacy tradeoff, and why it matters more each halving.
№ 017BitcoinBitcoin Script Has No Loops: Security by Design
Bitcoin Script omits loops entirely, not as a limitation, but as a deliberate defense against Denial-of-Service attacks on every node in the network.
№ 018BitcoinBIP-32 HD Wallets: How Key Derivation Actually Works
BIP-32 derives millions of Bitcoin keys from one seed without exposing the root. The exact mechanism, the hardening tradeoff, and where the real risks sit.
№ 019MarketsKalshi IPO Talks Begin as Legal Heat Builds
Kalshi is reportedly in early IPO talks after passing $2B in annualized revenue, even as states sue over its sports betting contracts.
№ 020AnalysisAI in Therapy: Patients Bring Chatbots to Sessions
A new survey finds more than three-quarters of psychologists report patients using AI for mental health support. What that means for the couch.
№ 021BitcoinBitcoin Compact Block Relay: Latency, Numbers, Mechanics
Compact block relay cuts Bitcoin's propagation bandwidth by ~98%. BIP 152 explained with figures, a worked example, and misconceptions addressed.
№ 022BitcoinWhy Bitcoin's Timechain Makes Censorship Very Costly
Bitcoin's block structure makes retroactively censoring a confirmed transaction ruinously costly. Here's the exact mechanism, with numbers.
№ 023RegulationBitMart US Launches Regulated Prediction Markets
BitMart US joins the rush into federally regulated prediction markets, the latest crypto exchange to chase a CFTC-blessed event-contract business.
№ 024RegulationZelle's Stablecoin Bid Crowds the Remittance Race
Zelle is moving into cross-border payments with a stablecoin play, taking on Wise, Western Union and crypto-native rails. What to watch.
№ 025BitcoinBitcoin Replace-by-Fee: Why Merchants and Devs Clash
Replace-by-Fee lets senders bump stuck transactions, but it breaks zero-confirmation payments. Here's the real mechanic behind the tension.
№ 026RegulationCustodial vs Non-Custodial Staking: Regulatory Differences
Who holds the keys determines who holds the liability. Here's how regulators actually draw the line between custodial and non-custodial staking.
№ 027BitcoinHow Bitcoin Script Evaluates Multi-Condition Spending Paths
Bitcoin's Script interpreter walks a stack machine through every spending condition. Here's exactly how multi-path validation works, with a concrete example.
№ 028RegulationUS Orders Anthropic to Pull Fable 5, Mythos 5 AI Models
A federal export directive forced Anthropic to suspend its top AI models over a jailbreak concern. The company says it's a misread of a narrow flaw.
№ 029RegulationSEC Rule 611 Repeal: A Boon for Tokenized Stocks
The SEC's plan to scrap Rule 611 could clear the biggest legal hurdle for tokenized US stocks trading in DeFi. What changes, and what to watch.
№ 030BitcoinBitcoin's Coinbase Maturity Rule Explained
Bitcoin forces miners to wait 100 blocks before spending a block reward. Here's the exact mechanic, why it exists, and what it prevents.
№ 031BitcoinHow Hash Functions Prevent Bitcoin Block Malleability
Cryptographic hash functions lock every Bitcoin block into place. Here's the exact mechanism that makes retroactive tampering computationally absurd.
№ 032AnalysisHow MEV Changes Validator Incentives in Proof-of-Stake
MEV reshapes what validators actually optimize for in PoS systems. Here's the concrete mechanics, the real tradeoffs, and what most guides skip.
№ 033BitcoinOP_RETURN: How Bitcoin Stores Data On-Chain
OP_RETURN lets anyone embed up to 80 bytes of arbitrary data in a Bitcoin transaction. Here's exactly how it works and what it costs.
№ 034BitcoinBitcoin Institutionalization Faces a Fundamental Clash
A circular economy founder argues bitcoin institutionalization works against the asset's original design. Here's where the friction actually lives.
№ 035World CupBrazil vs Morocco: Reading the World Cup Market
A prediction-market preview of Brazil vs Morocco at MetLife: implied probabilities, where the crowd is biased, form, probable XIs and a scoreline call.
№ 036World CupUSA vs Paraguay: World Cup 2026 Market Preview & Odds
USA vs Paraguay group-stage preview through the prediction-market lens: implied win probabilities, where the crowd bias sits, probable XIs and a scoreline call.
№ 037BitcoinHow Mempool Congestion Spreads Across Node Clusters
Mempool congestion doesn't hit all nodes at once. Here's how geographic propagation works and why your fee estimate can lag reality by minutes.
№ 038MarketsKraken Becomes FIFA World Cup 2026 Crypto Exchange
Kraken landed the Official Crypto Exchange Supporter slot for FIFA World Cup 2026, with fan events starting at a June 10 countdown concert.
№ 039MarketsSpaceX IPO Squeezes Crypto as Liquidity Drains
SpaceX's $250B order book is pulling cash from risk assets. Here's why the SpaceX IPO may keep pressuring crypto, and what the SPCX perp is signaling.
№ 040MarketsBitcoin ETF Outflows Erase Trump-Era Gains
U.S. spot bitcoin ETF assets have slid to $77.6B, the lowest since November 2024, even as crypto regulation turned friendlier. Here's what's draining the money.