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 0x02f9542580fb24b9a7e601d6e9e5f3546baf2973d656ba16dcba9e69b6fde9cf. 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/9c2e8a3d-7cd4-4896-9457-48e8d6966617.json and https://artists.proofprofile.net/proofs/artist/9c2e8a3d-7cd4-4896-9457-48e8d6966617.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 0x07d618f34ec7843f89d7a998483a493aa9cf9982a5b2690f8fd26deb279eda13. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USUYG1525156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d618f34ec7843f89d7a998483a493aa9cf9982a5b2690f8fd26deb279eda13. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USUYG1525156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c516e40daf641f2c678e8f723230169025b2045d8fa2b4e2bbad5b73859a8. 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/TCAHD2313435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ace81ea2eaffbf22911880129d4b0db70c6a5416a3dfe830b06b07a2668f64e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USUYG1527958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b27de39a49976cbabb8d988b014af3f457a400c642af774c894439dadf582. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:37Z), 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/USUYG1511523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d680494ce20fb25ef10c576f8edad023edbb4e7e7d573ae5e3da2d5e372c9f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USUYG1575815.
Alabama Angel (feat. Jerry Douglas) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d680494ce20fb25ef10c576f8edad023edbb4e7e7d573ae5e3da2d5e372c9f. 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/USUYG1575815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397e2c18a3ed2a8ab7f623d20d01572974bd48abfba1ddb12d73968858f6c718. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USUYG1599712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e465cc8c37b0a6b85c62edad17b6e0206af00c69b4b6f0b10fa47a00d7f495a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJN2533072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc330c39126f6eb045d6bc0294c700fc340aeef685d6321b8ae8b2a3ca7e515. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAKB2503993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf711e6e6b6f96e439fda5f0264325ac866d7df0c3929cf36c02d00a211de5082. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT65Z2510919.