{"copyright_id":"0x2a9da42e44860a50fbb3e5c019db8dea5af924583dc9939c5008b7f4a66de49f","name":"The New York Philharmonic Orchestra","registered_at":"2026-06-17T10:00:14Z","symbol":"NIM1360241","token_address":"0x2e1644ec9387bc1bbe1cf1e0156af946dccd8fbe","type":"artist","uuid":"7f6ea6b0-8f79-475a-a3a0-197b5f08de74"}
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 0x2a9da42e44860a50fbb3e5c019db8dea5af924583dc9939c5008b7f4a66de49f. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f6ea6b0-8f79-475a-a3a0-197b5f08de74.json and https://artists.proofprofile.net/proofs/artist/7f6ea6b0-8f79-475a-a3a0-197b5f08de74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).