Overview
- An anonymous actor wrote the full text of the U.S. Constitution into Bitcoin block 951,492 using an Ordinals-style inscription confirmed May 28–29, 2026.
- The single transaction was about 44.4 kilobytes, used expanded OP_RETURN/witness data, carried txid 261f3d9a0414c2904932183be3a51f1773087d03c664468f85c7b6f9ce8a5686, and was processed by SpiderPool.
- The fee paid was roughly 113,454 satoshis (about $83), showing that relatively modest payments can secure permanent on-chain storage when the network accepts large witness payloads.
- Developers and users are debating the move because Bitcoin Core v30 removed prior OP_RETURN size limits and Ordinals and Taproot techniques now allow large arbitrary data to occupy finite block space.
- Observers warn that if large inscriptions become frequent they could change fee dynamics and raise costs or congestion for ordinary Bitcoin payments, a concern that has prompted proposals to limit arbitrary on-chain data.