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 0x33867c3370639ce610ac8b6b1e263b0d75f76c1a03d490d1c5d7cfdf531a02e9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c51a59ba-112d-4a1b-8c0f-0179059a6367.json and https://artists.proofprofile.net/proofs/artist/c51a59ba-112d-4a1b-8c0f-0179059a6367.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 0x6bd9415d13c64bb3176910874099b8395d6028a3c49cd2757c5d24478bebb63d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ITAD81900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d20e9242dfa6883088a78bf50647889ab15a5e6c6f62ebe9ac57913ef2db19. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ITAD82000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cd75a04aec665de378ff6bc983f43d0a8f6657cad495d74652faf039381e77. 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/ITAD82000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf376e206b2bdfe05b280abf62e13ce4e95d5a30fd60e9e9b86b6a64803ab6b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ITAD82000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb55aaa727a3a9721f9468db4a538d61ee70348c881dc45f3d0f797fecb64cb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITAD82100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce18121c09c290f4b079b37f3c2388d6b7e0419177d6eb42b4ade74480ff8b6c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITAD82200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d7152e39948a4f2f5353143034056eed6f3753e18d4291cd2d602c13a6fe5f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ITAD82300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492ca5de9e016405801b8836e782f49ea31a576c0c772e6ff97db4a477ee2c81. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITAD82500117.
Monte Carlo Deep House Vibes (Summer Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6222e8be7fd01673e86dcfebb724f55e4706cfad83c1e8462daf25be6a730b4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITAD81700047.
Deep House Lounge, Vol. 2 (Chill Out Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e64cb310ea5cba9674d99a18eee77d0b17a9b67d900ab5f3722b50bca25fe2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITAD81800108.
Formentera Beach House (Deep & Tropical Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6222e8be7fd01673e86dcfebb724f55e4706cfad83c1e8462daf25be6a730b4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITAD81700047.
Every Breath You Take - Loungetronic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cf5a77537ebc81a13cc9843baa185c9e65ee58fa1e33b8f54af67d82ba0a2d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITAD81700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756629cb0b1e79f68173fcc613445ba8eccf36a7ad0dd8f76b4e32dfe173e7f6. 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/ITAD81500246.
Sittin' on the Dock of the Bay - Highpass Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e70379d6978537063115dda11e660baabb8545c7e57580bdf8a9460feac41f. 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/ITAD81700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cb67daab1365bc473a8a81d3f2d826df7168a276571c1d4986709e86d993ee. 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/ITAD81500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e64cb310ea5cba9674d99a18eee77d0b17a9b67d900ab5f3722b50bca25fe2e. 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/ITAD81800108.
House Relax, Vol. 6 (Deep and Chill Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cf5a77537ebc81a13cc9843baa185c9e65ee58fa1e33b8f54af67d82ba0a2d. 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/ITAD81700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688e1e99c4c672c3a4606005f3a1cf79523d277d7bd906a3b80dfe1c35cb0049. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITAD81900120.
House Relax, Vol. 2 (Deep and Chill Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756629cb0b1e79f68173fcc613445ba8eccf36a7ad0dd8f76b4e32dfe173e7f6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITAD81500246.
Sittin' on the Dock of the Bay - Highpass Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683a8906a9f84f672ab4e8394350f86717b55755b7385933ab53c69826b080f8. 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/ITAD81700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6222e8be7fd01673e86dcfebb724f55e4706cfad83c1e8462daf25be6a730b4. 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/ITAD81700047.
Deep House Vibes (New & Best Essential Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1d25134986a0e8475e584ffbc28e1a39af7f925bbbe5f0eeaa5e2f05bde45f. 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/ITAD81600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756629cb0b1e79f68173fcc613445ba8eccf36a7ad0dd8f76b4e32dfe173e7f6. 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/ITAD81500246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ff0f8fd3e6765540f9a52a24cff22f4a874e7a82c5be48f336b664868d4e56. 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/ITAD81800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ea3a2bf1a38b79504e2d3468fd11798f24ca0035a6821b7e62182a8c0db705. 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/ITAD81800038.
Feel Good, Feel Cool - Electro Swing Edit
House Addicted (The Best of House and Nu Disco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0250dde137ee2342573a2e7af22e318fac5272bfa1a514ce63831fa74b631ac7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITAD81500277.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef153d6a9d2d7c5845b8b4d13bc8798d1658ce2729ceb3bdce052082e48ec854. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ITAD81500245.