Magnus Ericsson,violin Hans-Olov Mellqvist,piano
{"copyright_id":"0x127e03fd314b0d01fecaf2d89cf872dc507ab10e5676392de327d247a74fb85a","name":"Magnus Ericsson,violin Hans-Olov Mellqvist,piano","registered_at":"2026-06-12T01:16:37Z","symbol":"NIM0153973","token_address":"0xe9e987fdf32582b9f12dff9b6b6ea2a793c9a28e","type":"artist","uuid":"75abaf17-c05c-42fe-bdea-daa53a2d98b7"}
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 0x127e03fd314b0d01fecaf2d89cf872dc507ab10e5676392de327d247a74fb85a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75abaf17-c05c-42fe-bdea-daa53a2d98b7.json and https://artists.proofprofile.net/proofs/artist/75abaf17-c05c-42fe-bdea-daa53a2d98b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).