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 0x0d66c409dfb37bf1f7817064f8ab76c35cef5b688290c53411125b0766163374. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c967d9a-1cb1-4cb2-a3fd-66542f2ce787.json and https://artists.proofprofile.net/proofs/artist/9c967d9a-1cb1-4cb2-a3fd-66542f2ce787.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Get Too Close to Me (Deluxe Edition)
Live From Waukesha County Mental Health Unit B
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 0x5b45ce8931d0ccd09a53856e22410385e52e3be2b86aacef38e8c81fe2aa38f0. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZGNT1900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97439a96cf6f41bf9a3ef8c1f1f1cd1f394097bf4b1d2681fd1bcccdc4bf094. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZGNT1900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e85c970ec3495843c034d947500d347e9633b4dc18f2ef6b935a9a1e1a89d7. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:18:46Z), 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/QZGNT1900175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b7bc97ca12fb26bf3ecdb2f579076fdc7472b4eb4786eea334589685dcea00. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZGNT1900176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116d73557da9729732711070b1966e732686f2fd9505f7f9bf6e5f67b6a6502d. 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/QZGNT1900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2e13e9b5017e1b7fe02a3c5a4f5cb9d7a3f1030fe0cb0a945b42b42978f8f1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:37Z), 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/QZGNT1900181.