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 0x928ba5d863fc1eb9dab5acad4fc40d15025ec2b3c3004165f9219528dca89709. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3523d447-7612-4166-8346-753434284898.json and https://artists.proofprofile.net/proofs/artist/3523d447-7612-4166-8346-753434284898.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 0x5b2263d0d293ef790629a115ca7bc22a7f3f8aa1fab38609bfa4056775680c08. 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/GBKQU2311029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668f3071f480725387089cce7cde92072db97cebf89365bb954c316f17a2e659. 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/DEH742416787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355952801f67cf6a7cfd970563a5694d804dfb00cc87242af0e8218202aa77d. 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/DEH742220458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdd64305697556516d043ff39f91f61026c3193f0e057efe31fd813893e9ff7. 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/DEH742180006.
Mantamar (Pride 2022 Edition Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7138f990093f58dabc8f847183212e7afd75af1b5706f9f04c575036d5d3042a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH742100602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bde0351cfc1ece682594022a9ff80d309d1d62e8a235b989e24fe61ec9a8e0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRMQV2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0fe7bca080161a03f02851796218623b390a8289cd94e18906af30c478dec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRMQV2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220cff4fdcc9af47607ec750ecc07ef095335a161ec77b2cd7094dc1ad1fc1da. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRMQV2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6890c7c16a4594b623b2bc0d164b1527a4a37ca61a542b1d9af262743f7c84b. 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/BRMQV2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0655581e4b219bf458fec60217955dd4fd62c13129deacdece75c128ea85424. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRMQV2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543707aef4cb74ef94ea24bd1786019f79b9832cc0939e51d0bb2a5ba69046df. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRMQV2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2723b594d0d16f06b4d6bbc283dd331f02b4346d6807c9bc4e168278a36d46dd. 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/BRMQV2300020.
We Will Be Free Tonight - Yerko Molina Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2c13c63343ea7a506a6788559e94313f2b9f731f1a4aea654ac7ce4f680da5. 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/BRMQV2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0b1caac216e71eed7ad4cd990f4ee50a72c286a7f97aacd5d9dbff8d73dafc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BCVBV2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059493124a89062f92849cda089a41699702ba37e000e098fafbf0ce941598f4. 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/BCVBV2100036.
The Final Countdown - DJ Axis Martinez Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc35eb2e37fe0bfb9387256b673e9dbf58ec806541049b0066a14d81118c0ba0. 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/DGA062335216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9e17ccdb87200b51c8d2688486b7272dfb441f94cfe2b795efdc328c306730. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEH742314844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119dd6357b86b98978e35fd1a713f8b57ddd62e22d5ec9b81177657c49cc58f2. 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/DEH742319803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c979f731312fecef7381881f34cd93ffb66978284f42e4e1db81cc34fa618. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH742417264.
Industry Nightclub (Puerto Vallarta Pride 2022 Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a40e956c338e92984b6ff6cc184ae4683175e3f4d2d4b3aa6d9dbb2b3b75d1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEH742315015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d59c47b6cbed711cbd8832bc99b196294a4b10d929c7ad53365e2a5d527e68d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX762159225.