{"copyright_id":"0x47ce30f858f9bf7dea45a973e15a76d6e4eafeb4d1eaeb96a29e4f491a781db6","name":"Juliana Cumaru","registered_at":"2026-06-15T05:56:36Z","symbol":"NIM0703152","token_address":"0xdf8ccc94a0d2591dc923b9cddee5af7d758efea1","type":"artist","uuid":"f22eec03-ea6c-4800-b5e1-22cbccf98ac5"}
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 0x47ce30f858f9bf7dea45a973e15a76d6e4eafeb4d1eaeb96a29e4f491a781db6. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f22eec03-ea6c-4800-b5e1-22cbccf98ac5.json and https://artists.proofprofile.net/proofs/artist/f22eec03-ea6c-4800-b5e1-22cbccf98ac5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).