Bitcoin Protocols and BIPs Articles

BIP 64 getutxo explained as a closed peer query for UTXO status, including bitmap responses, unauthenticated results, privacy and DoS risks.

BIP 45 deterministic multisig wallets explained: review cosigner branches, receive and change derivation, address discovery and recovery limits.

BIP 44 wallet paths explained: understand purpose, coin type, account, change and address indexes plus gap limits and recovery compatibility.

BIP 42 Bitcoin subsidy explained: learn why a bit-shift overflow threatened far-future issuance and how the fix preserves finite rewards.

OP_RETURN explained for Bitcoin operators: understand unspendable outputs, relay and mining policy, consensus validity and changing data-size defaults.

BIP 62 transaction malleability explained as a closed proposal covering DER signatures, low-S values, minimal pushes and later deployed rules.

BIP 39 seed phrases turn computer generated entropy into words. Learn checksums, passphrases, wallet compatibility, private backup and recovery.

BIP 73 Payment URL Negotiation made simple. See what the proposal changes, its current status and what it means for Bitcoin users and operators.

BIP 70 Payment Protocol explained: understand PaymentRequest, Payment and PaymentACK messages, X.509 identity, refunds and legacy security risks.

BIP 60 fixed-length version messages explained: review the optional relay flag problem, proposed protocol 70002 change and safe parser testing.

BIP 50 March 2013 chain fork explained: trace the Berkeley DB lock limit, emergency miner downgrade, double spend and enduring operator lessons.

BIP 38 encrypted private keys explained: understand 6P records, scrypt, EC-multiply mode, password risk, test vectors and safe recovery.