Irving Kaufman & Adrian Schubert & His Salon Orchestra
{"copyright_id":"0x0d86e734e798494d9918c8bb2759f095085d1d32a8b26dd5f8b5b5544f7f44b4","name":"Irving Kaufman & Adrian Schubert & His Salon Orchestra","registered_at":"2026-06-16T23:03:05Z","symbol":"NIM1203486","token_address":"0xacaed2a5deb246b7f88e3afd739d95b03c44f907","type":"artist","uuid":"5fc27a7e-b704-49dc-b7de-780a0dbc8ed6"}
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 0x0d86e734e798494d9918c8bb2759f095085d1d32a8b26dd5f8b5b5544f7f44b4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fc27a7e-b704-49dc-b7de-780a0dbc8ed6.json and https://artists.proofprofile.net/proofs/artist/5fc27a7e-b704-49dc-b7de-780a0dbc8ed6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).