thumb|St Edward's Crown (1661), used for the coronation of English monarchs and, from 1707, British monarchs, to the present day. A crown is a traditional form of head adornment, or hat, worn by monar
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818c622799cf55028a38823ea781ba8f3fd8910078bb313f1b86f8b88af49653. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cd18039-ef20-44c9-8bdf-d3a96ea53a7b.json and https://artists.proofprofile.net/proofs/artist/3cd18039-ef20-44c9-8bdf-d3a96ea53a7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).