thumb|A Samoan woman with is a traditional Samoan tattoo applied to women. The covers the legs from just below the knee to the upper thighs just below the buttocks, and is typically finer and more
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 0xed244d9d064af26bf07e7fb680f32de0febbed7b35b90f96ece2063768b7e05f. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf7cee84-42c8-46c6-8078-06016d16d20d.json and https://artists.proofprofile.net/proofs/artist/cf7cee84-42c8-46c6-8078-06016d16d20d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).