Bitcoin Node Setup and Maintenance Articles

Bitcoin Core 30 data-carrier policy explained: larger OP_RETURN defaults, multiple outputs, aggregate sizing and the boundary between policy and consensus.

Bitcoin Core AssumeUTXO guide covering height 840000 mainnet snapshots, authenticated loading, dual chainstates, background validation, storage and rollback.

Learn how Bitcoin Testnet4 mining works, what it can earn, the costs and security checks, and how a Bitcoin node can support SHA-256 miners.

Bitcoin Core 22 NAT-PMP guide to router port mapping, build support, reachability, exposure, firewall controls, monitoring and rollback.

Bitcoin Signet guide covering BIP 325, default and custom networks, challenge validation, isolation, faucets, reorg assumptions, Taproot testing and CI design.

Bitcoin Core 0.21 settings.json guide covering wallet autoload state, precedence, GUI and RPC writes, file permissions, recovery and drift detection.

Bitcoin Core 0.21 startupnotify guide covering readiness semantics, shell execution, permissions, idempotency, service orchestration, failure handling and tests.

Bitcoin Core 0.21 getindexinfo guide covering named indexes, synced status, best block height, absent results, chain-tip comparison, monitoring and safe gating.

Learn how Bitcoin Signet mining works, what it can earn, the costs and security checks, and how a Bitcoin node can support SHA-256 miners.

Bitcoin Core 0.20 rpcwhitelist guide covering per-user RPC allowlists, intersection rules, default-deny behaviour, authentication, testing and recovery.

Bitcoin Core 0.19 blockfilterindex guide covering BIP 158 filter creation, background sync, disk use, local RPC access, validation, monitoring and rollback.

Bitcoin Core 0.18 getrpcinfo guide covering its sparse versioned contract, active command timing, observability limits, access control, sampling and incident use.