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 0xa7bb363f2b7c6c8793f5b4d0ee458a2449d95300ad2950d1f5349f6e2daaff8c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c79cc6e-0764-4500-b10d-7fe6dcbc2324.json and https://artists.proofprofile.net/proofs/artist/8c79cc6e-0764-4500-b10d-7fe6dcbc2324.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 0xb1775eb4e009a88321135b38e498797cf455a1d4c4c3456899c42725a1dfba85. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:46:31Z), 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/ARF062400498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a721917a2e8d646d43aaa719250082aaf12e84cce32459a914b1cc5fd43cc37. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:35Z), 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/ARF062400496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf288c964a2a2a04261d4370bdb6d4eca9fbed3d2f9ed90446a2ed6c80d6fe17b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARF062500209.
¡Florece mi jardín! La primavera es genial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f61c59a18415c51f5735cc0cd0d223a027ee3221966eb421922c78da6858b7e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:03:45Z), 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/ARF062500308.
Vegetales by Conejo Bunny - Feat. YumYum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937dc55443e7cdb3c35c4d3071d34803aa5cf3dbbf775139a28efbe75d488d59. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:53:54Z), 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/ARF062500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869d5caf8caf371b3b1d8812dac4bab00ac4eecc5fa6b4ee6e6aa013f327ab97. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBMJG2520752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca2b05f52a15e4fe9281d59883fa243508acb78654ecc5ea42590e1eac54a97. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:01Z), 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/GBMJG2524103.