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 0x6dc64729e08a47ab5f8fc3c027ddb5e326b13bcf761b09934e688edb811e8bbe. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2f88331-ef09-45c3-a8f6-e3f693ee2b64.json and https://artists.proofprofile.net/proofs/artist/e2f88331-ef09-45c3-a8f6-e3f693ee2b64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
dreamy monkey (Slowed & Reverb Versions)
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 0xb569c0d030b9df64ae060c67ef9c416ad064b3b612e8464bca1be08c8e4414e1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:12Z), 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/SE5BU2550949.
Smiling Dolphin - Slowed & Reverb Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18f9a7ca0742d00a37c275ca022245e358f634a8e5d50176c440578a9c2e37a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5BU2550950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf147fe751ae8e1482345f8294c4fa13ac18ffa4eaca3b40eea95b4b88fb66453. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/SE5BU2550951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bf0e7409ae5599a3a686c284e6a578c1fd3698a5cdf0f61685662de877da83. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:29:58Z), 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/SE5BU2572768.