Fri 7 Aug 2026

Bitcoin's OP_RETURN opcode enables permanent, cryptographically verifiable timestamping of arbitrary data — up to 80 bytes per output — on a globally distributed ledger that no single party can alter retroactively. A document hash anchored to a Bitcoin block can be independently proven to have existed at or before that block's timestamp, with no trusted third party. Peer-reviewed analysis of Bitcoin's transaction graph documents that inscription-type transactions now constitute approximately 34.5% of all analyzed transactions (~63.9M of ~185M), indicating that Bitcoin's function as a data-anchoring layer has moved from theoretical capability to measurable, large-scale utilization — a shift observable directly on-chain by anyone.

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