Bitcoin Protocols and BIPs Articles

BIP 144 SegWit relay made simple. See what the proposal changes, its current status and what it means for Bitcoin users and operators.

BIP 143 signature hashing explained: learn the SegWit digest fields, input amount commitment, performance gains and validation requirements.

BIP 142 SegWit addresses explained: review the closed Base58 design for native P2WPKH and P2WSH and why Bech32 became the deployed format.

BIP 141 transaction weight explained for miners: calculate base size, total size, virtual bytes, witness discount and four-million-unit block limits.

BIP 125 replace by fee made simple. See what the proposal changes, its current status and what it means for Bitcoin users and operators.

BIP 131 coalescing transactions explained as a closed hard-fork proposal using wildcard inputs to aggregate same-script UTXOs and their risks.

BIP 75 encrypted address exchange explained: understand sender authentication, ECDH privacy, store-and-forward servers and legacy BIP 70 risk.

BIP 124 HD script templates explained: review deterministic key groups, lexicographic sorting, placeholders and why the incomplete proposal closed.

BIP 83 dynamic HD key trees explained: understand reserved child zero, nested path notation, application mappings and safe wallet recovery.

BIP 140 normalized TXIDs explained: learn how the closed proposal removed signature scripts, introduced OP_CHECKSIGEX and tracked two identities.

BIP9 miner signalling explained through DEFINED, STARTED, LOCKED_IN, ACTIVE and FAILED states, including retarget windows and pool checks.

BIP 107 dynamic block size explained as a closed hard-fork proposal with a staged runway, 4,032-block checks and 10% increases.