{"copyright_id":"0xca8f3a6a8680ecfbaa8c4fbf5b369cfcb7ed4efe5d50ef1af29eeaa578bd2f19","name":"Waking the Sleeping Bear","registered_at":"2026-06-17T19:05:00Z","symbol":"NIM1490150","token_address":"0x7a86cdb465b313eae272832864b4bff8fbb5d034","type":"artist","uuid":"9905391e-cd5c-4846-bd6e-17150beb2c44"}
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 0xca8f3a6a8680ecfbaa8c4fbf5b369cfcb7ed4efe5d50ef1af29eeaa578bd2f19. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9905391e-cd5c-4846-bd6e-17150beb2c44.json and https://artists.proofprofile.net/proofs/artist/9905391e-cd5c-4846-bd6e-17150beb2c44.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 0xe1dc4e5f0be2da80fcc23f7cbdecce108e2ffc88c66d267d5c9146be42cc1f93. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZZ7U2481614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc0386e8d3672a00130b853b778bbc3861d81d5b58d23f59b0f364ee072ebc7. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZK6N2521530.