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 0x29ca160fddaef523054f91903c75bbd0fff0d672d505bf430bc8c37b80c06bbb. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75211603-8fb1-4801-8b2e-b6ea414c4766.json and https://artists.proofprofile.net/proofs/artist/75211603-8fb1-4801-8b2e-b6ea414c4766.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 0x6b422727f048da70c083ab56aec362586dfe9f8686f8fc6d89de7ae23c4d4cf3. 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/QZNJY2395212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8268e7e538a8b42bc5b8ea1c02854b6f3ca1df11b06522afb20288e5104e80. 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/SE5752453613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd452d75fdaf5b209e7253fbfd1a53c2ed58ed4185e58b4ad85081730c777268. 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/SE5BU2469392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6894514321e13cfd9da3cbd4a87a9c3ca30ba970c16b06a0d9a084149a07dfc. 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/SE62M2324914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007993514b6bc370f12f60ee3d836e13f0b1fffd5141a19fd7d9363fc1456cc1. 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/QZNJZ2394570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b6e8836c22936b0329fc1cce7d035ed5eb5b2e5979f061b7b1ab86314ceca. 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/QZNJY2303460.
Cielo en la tierra (Instrumental Versions)
Quiero Conocer a Jesús - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9029d3e67c9163cfbb009fa439ccc16d83a1e655b3ebe5579be9b030477849. 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/SE5BU2519356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6894514321e13cfd9da3cbd4a87a9c3ca30ba970c16b06a0d9a084149a07dfc. 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/SE62M2324914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd452d75fdaf5b209e7253fbfd1a53c2ed58ed4185e58b4ad85081730c777268. 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/SE5BU2469392.
Me viene a buscar - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356d22ed416a0695381919a75128c08ee71526d62227a4d56e7acd782f19f79b. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SE6QE2494103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578c200059be1ccd56b9ded63cfb8e98dc6ccff69af7f796c0e4099b350ebb45. 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/SE6HN2470774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de611efa6d15a2a90085b71263d5d17ec1562e8a8b8ee3544f041bfab25d80e. 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/QZPJ32410698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b6e8836c22936b0329fc1cce7d035ed5eb5b2e5979f061b7b1ab86314ceca. 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/QZNJY2303460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f3d33bb0208d5af0a071a761dbb4a6d7c1b75531113c3199b1549efb172463. 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/SE6I32460815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a19ec5253e938d81835c1efe40186a5a5636d275b585153427245fb3a7c134. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/SE6SA2492669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a19ec5253e938d81835c1efe40186a5a5636d275b585153427245fb3a7c134. 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/SE6SA2492669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356d22ed416a0695381919a75128c08ee71526d62227a4d56e7acd782f19f79b. 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/SE6QE2494103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9a7b84f2d24f7ff95e35d2c5912e65fe92d333b280e9276a3fd6b90269d2a8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDA72440073.