thumb|'Fairy Islands' from the book Elves and Fairies 1916 by Ida Rentoul Outhwaite thumb|From Elves & Fairies by Ida Rentoul Outhwaite thumb|The Waterfall Fairy thumb|From Elves & Fairies by Ida Rent
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 0x0e3aaea596193f966956a033b98485e9aba5e5f107a0d21250d759581577c0a3. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47995f23-98c3-425d-b3f3-81e6c8dded7c.json and https://artists.proofprofile.net/proofs/artist/47995f23-98c3-425d-b3f3-81e6c8dded7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).