{"copyright_id":"0xe54be33fe5fe377c3453bcbe1deed6e9e7f759021c65ab24df84f2aefd00fb2c","name":"Emma Öberg och Fredrik Reinedahl","registered_at":"2026-06-20T05:46:17Z","symbol":"NIM1529890","token_address":"0x700438aae6fd8c2c6ba78aea6423004f3d3754d2","type":"artist","uuid":"a0cf0b2a-2b5c-4a05-8ec0-2e9ad0da5753"}
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 0xe54be33fe5fe377c3453bcbe1deed6e9e7f759021c65ab24df84f2aefd00fb2c. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0cf0b2a-2b5c-4a05-8ec0-2e9ad0da5753.json and https://artists.proofprofile.net/proofs/artist/a0cf0b2a-2b5c-4a05-8ec0-2e9ad0da5753.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).