{"copyright_id":"0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d","name":"Laetitia Tremolet de Villers","registered_at":"2026-06-15T16:22:45Z","symbol":"NIM0764281","token_address":"0xfe1cfa8242a86550b0e6d4b95c1a63beb9bbbdba","type":"artist","uuid":"084a835a-4a03-45b7-be84-ae316a7de01e"}
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 0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.json and https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ccf373b0d6a323d62e27afbf3f31d97403657cedfbed79fb7b7d38c6dce48. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8M81500040.