{"copyright_id":"0x4b535161c8a72ec0fa8d00becf9fb0da3ca0a5bfc0fc5d28910cf0da5bc5f3c9","name":"Weissjackl Trio","registered_at":"2026-06-16T02:03:34Z","symbol":"NIM0902887","token_address":"0x2b27b121de6ab9c5fbac92d60fcd88cd60e6f4e5","type":"artist","uuid":"2418bebf-08bc-49ae-9de3-d9f26504df66"}
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 0x4b535161c8a72ec0fa8d00becf9fb0da3ca0a5bfc0fc5d28910cf0da5bc5f3c9. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2418bebf-08bc-49ae-9de3-d9f26504df66.json and https://artists.proofprofile.net/proofs/artist/2418bebf-08bc-49ae-9de3-d9f26504df66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).