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 0x6df891110d8174a2582bab13bb904f4009073292a0d81cf6adf9368f69fb231a. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26df39e2-490b-4c8c-9e3a-3ded726ec1b0.json and https://artists.proofprofile.net/proofs/artist/26df39e2-490b-4c8c-9e3a-3ded726ec1b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chevy Ridin' High (feat. Rick Ross) (feat. Rick Ross)
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 0x70951248d097cb2bb4f95278c11e3ec1b8da57bcae0c2f2bc584024d728f82f0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USJI10600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f0f994f003f3bb92e7f70d1c6f12023645c95d930022ac895f7e945f21dc3e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c837d0d1fb6035dfc63517a217bfe5e90e63a0c6a4d46bcc60d18bb72525df. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEL1903774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf846505e8b59d8cebdfc6dc696635680d973a3f82418b7fa0e36a4e507fc75b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES61858545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abe726d178b76247653dc5265ac2bc6928187b053f0548337ab77ddd594c228. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1939167.
Smokefest 1999 (feat. Phil The Agony, Big Boi & Dre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0b360005ef341ce8afee23845e48b2e82cf1e7f51b3dd3e33ef2854bad8a50. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLR59900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fbfbf46c1c682d569be9836ed5ad08099819cdad6cf2dc5668d48e4a9a4f7c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USHM81373017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcbef1506a7d33a491bb542327d2348652846e2eb545ddd0094cc7be343ee9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR1978422.