Instrumentaal Ensemble van het Amsterdams Marionetten Theater
{"copyright_id":"0x79075458cb6399aff226aed8a7970619129f1a90c93bb3330a5d727e6e9af757","name":"Instrumentaal Ensemble van het Amsterdams Marionetten Theater","registered_at":"2026-06-16T18:49:37Z","symbol":"NIM1143008","token_address":"0x03f106d1d9d54ef8466fe6d8286a8a3efa2407aa","type":"artist","uuid":"5417d80e-0ec4-4409-bfc3-655dc45d3dba"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79075458cb6399aff226aed8a7970619129f1a90c93bb3330a5d727e6e9af757. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5417d80e-0ec4-4409-bfc3-655dc45d3dba.json and https://artists.proofprofile.net/proofs/artist/5417d80e-0ec4-4409-bfc3-655dc45d3dba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).