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 0x7555580c75c71479f6867cfe5e2f2b2c417a336fc4b9291d709e1c9ec41445d1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1268b6ac-09fd-4c54-830c-32372e41dc88.json and https://artists.proofprofile.net/proofs/artist/1268b6ac-09fd-4c54-830c-32372e41dc88.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 0x90c1028a3a1225dbc3c9fe3c8137fb29c91990483108a7847560dd5e0e54fd62. 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/ES5022302716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a04db93f1b0f5e2472443d892b9f5aa7c9e62a2f4d8d86557682d53a6b028f5. 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/ES5022400942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf0005ed9a3113a3d30546faf47150a2ed29acbc0428caf54a0e32fc9e08254. 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/ES5022400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2463bc40f76b402ad8c56943ea0b91cd7dd82d5ec1078926c0e70f3ad041dd26. 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/ES5022400568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f11d05647a31c842c79cc8f4f63b4244a86cffb5dc8a4cef8d4ff2e26ae5bd. 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/ES5022400622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92eaeddb839202854fb1ef7dcdfe038fb11aff63c5ec38c0abf7b409a31bb0e. 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/ES5022400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534ae533530877ec93bc6d14b7ecf89fe6c83fc438b6b8be3f42c6cb7be89b80. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES5022401074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd61f6ab4ce5b35a6180fa8ef4844a86b834df7215b35a38934b5115717c4e. 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/MXF012100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a04db93f1b0f5e2472443d892b9f5aa7c9e62a2f4d8d86557682d53a6b028f5. 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/ES5022400942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2463bc40f76b402ad8c56943ea0b91cd7dd82d5ec1078926c0e70f3ad041dd26. 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/ES5022400568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf0005ed9a3113a3d30546faf47150a2ed29acbc0428caf54a0e32fc9e08254. 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/ES5022400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3a783b45708f5cb92905496bd95688568264c75d73eef2794db5f2c482e104. 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/MXF012200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55a63f554a8547d42fe8e433f287700607c803a96f23109e1a6966292d6fed6. 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/US66W2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd61f6ab4ce5b35a6180fa8ef4844a86b834df7215b35a38934b5115717c4e. 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/MXF012100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2da48bf468f8ec7641ef9e5a7f7bd8c8054367dab477a83b546c2273867e60c. 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/MXF012100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02476227a79c5b4fe2bdc11f750abbd08a197dfa174e89eb2376da2932aa7fc. 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/MXF012000229.
Tú Me Llevas (feat. Pilar Cabrera) [Alternative Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd816bf23c95a0b467f2540fb21b66f82c97d150f9ca1768a3fc435333192ab8. 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/QZGLM1980576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636b344a78b41146e28a6a24db1dafd2feb95ff5a85266c7c2178ae0ac85440d. 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/US7VG1963668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f94780bd65ac33cba5cf9ae16889d95286ba2f4f1a5d02901ec5fd5c563de73. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QM6P41835427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804709b4289fade6552820b58b00b7623b414ac7ef1fab1e07755222e19c0434. 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/QZ5AB1883983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb55583efabbcc0ef912420721b5be683813795cabb9b6e3e83b2e41de1716b. 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/QZ5AB1785828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc205611e27e646eea61aa1fa5d7f7a7dc0ad3578c20588a2bb9af865d5df32dc. 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/QZ5AB1785829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241af4a420b11f1dca85d9a5e4255dbe8740b64cdd15ea5d41545d7228d8d74e. 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/GBLFP1592901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e376595da340fd046abd6c96d6b32a2e0a224f263c0d8c6beb1a90c8e6aea. 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/GBLFP1753463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fa0454c28ab923cec76d5b43f6758763f0c3e76ef1acf5a5fe1bb32f22c40f. 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/GBLFP1733959.