{"copyright_id":"0xe32106e2cc3bb41bbcd6c0577151fab8935b0d3bd36edfeb641d9c0bfbc2613d","name":"Sleep Keeper","registered_at":"2026-06-21T05:40:31Z","symbol":"NIM1837037","token_address":"0xce776ebc236fcb6d9a4c6db98df8525e679f2aa7","type":"artist","uuid":"de1dfa6c-ca7a-41ea-a141-10bb5cacdc68"}
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 0xe32106e2cc3bb41bbcd6c0577151fab8935b0d3bd36edfeb641d9c0bfbc2613d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de1dfa6c-ca7a-41ea-a141-10bb5cacdc68.json and https://artists.proofprofile.net/proofs/artist/de1dfa6c-ca7a-41ea-a141-10bb5cacdc68.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 0xd84cd008e9d0764204b496266efbaf003cdd3d89824c75ed7b522d090abe568b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:15:51Z), 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/QZHNB2263872.