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 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 0xb81afe33514846770c0c19a8538d9edca5ce128e689e90cf6bcd454a6122f099. 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/69b9ac5f-63ff-4897-8331-6d4e397e3f6d.json and https://artists.proofprofile.net/proofs/artist/69b9ac5f-63ff-4897-8331-6d4e397e3f6d.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 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 0x356d6dec7f10953c7e0b37a0a3a4c376fb228f5cdf9753456d4ac2e480ea062b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACW1617691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0238aa3ca3ec09371f3349d72ce0c275fe5cbd96bf4f4bb0ee06499d3fd53061. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACW1617692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb195983110b5b217d9ffde638fe042cadfcc00b3b90b7b2a3155ba4de3ce53eb. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/TCACZ1779664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5220f2c7a7f2068aee7437a36192664e0c8cdf55b9dcc07b3d41ee038a064c21. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADC1750959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edc3ca30fe2e1f94c86a0744290b0005821a7469ee6d042803ed91ad33be817. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADC1750962.
No Me Hubiera Enamorado (feat. Cuitla Vega)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ab204f4df4dc3de08ed00e02b32335ee2d14c6aeefbd34977c19dd14a305dc. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/TCADK1783446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41fe1a72d0ea4ddb1a9a865d7d07150ebb716bdb0966c7a0a075c6b0bd6c5c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADO1890918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777386be965a708cd72a1b7accc9e46a813b26b7b93022154f124a029cac05b7. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TCADO1890920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4029c063195def7e9619abc9893860b652f43d1ec6c960cc9bf76cdc2733e9d6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADO1890922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103bf5d973a15c0b0ffe68609e3a1fe99b0a591dc908aab40ccf69a3e7be25f4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCADO1891033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cdd8185dc7b682d8267de4d509e167441ed5607ea7629b5082cb6ee338ed27. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/TCAEF1990999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207d280a1971cf666119e8296dd685c7cc168e0a38a4ff646c5af3535081f604. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEN1931219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f7686273b9d8358a33535f4493d172800b0d05fd40765fdbd2c6b5d193f239. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TCAEW2039125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa662dfa1eea66bddd0d3af73f4b414c194dbeb58555a49c5755091854fc8b8f9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAEZ2087678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9ec3d9efec051c3114af773966c2f5dcde7989899426e071b433eeaf873976. 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/TCAFE2064549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b01711ad778a1478930df90776bd79e3617b13e72af82e349e2e7afeab8d20. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCAFK2148163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47f9f0de84df4a1b1b9103f987ecedb9eb40b6ef891bf03bd817b7323f8e1b6. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZHZ52199854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773629f6df0d770137419616b47621276220449f9fb86658c51cf0cd0760b3a2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QM6MZ2279150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0889327455742cee265e8b45f004e57e4dc307db791eb163315a9ab22113f227. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TW2376371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ff901d2f8cf798d488384c97902216f6e23c8d5a57f49c8901e6ba9598f8d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM6N22450246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4fc2284ed78c896712ae0ee47866a83f6e66524111d9b55bba3915e7bf807. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QM6N22431873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c054e29f845d7fe586ac18ffc54981c15330fbbf9d185e78e230f927f99c94. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QM6N22450299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80d8b6b587af71098eef2ef0f7cd1a71863e4efa02cce2a91fee64dd443d770. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ7HP2420004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843b666119defed376924f9ebd7007e012a88220dfe96b19e396e41eeb49897a. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/QMBZ92407161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf976337af9914449f7669d806cc542ea1f2eceab5b4ba4eb4f63f0e2daca8d55. 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/QM4TW2560057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb951f1eadeb2abd1be7c9bc47148a1840e1865ff7127fd2d7479751e489cf98. 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/USA2P2211801.
No Paras De Hacerme Feliz - Pop Regional
No Paras de Hacerme Feliz (Pop Regional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36cec9b3b3a63ad62ff4be08146b53d97e5ed86885f2ce417d0b0e5de792ec5. 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/QMSAV1106163.