thumb|Wilson in 2009 Dame Jacqueline Wilson ( Aitken; born 17 December 1945) is an English novelist known for her children's literature. Her novels have tackled realistic topics such as adoption and d
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3099d12b575203c7803314888e9ca18f90a3462f9d9713969d1e9aa2990f418c. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5bc6f34-031a-4943-bec4-ed67b4d4cb0a.json and https://artists.proofprofile.net/proofs/artist/b5bc6f34-031a-4943-bec4-ed67b4d4cb0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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