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 0x298530754546d9a0ecacd4af3ec3e2414af3530824f3160f8ff4e0332b91315f. 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/5cf6a65d-e70d-48ca-a42b-01ea88eb0553.json and https://artists.proofprofile.net/proofs/artist/5cf6a65d-e70d-48ca-a42b-01ea88eb0553.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 0xbbd88363ddf09dd07678964953001c3430aee2466d21a7917a5523bce436fa97. 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/TCABR1381793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebc04d0022522e0576a03e34fe085bcdbf18638e2af78cdb6942d290e1baf52. 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/TCABR1381800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ab4e866391a8afa4c2b0b08ef8bd5f8261ade71a440d3a0b647f99ccd94b7. 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/TCABR1381801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f31c9aa5c79237395d9e08dcf074f1a2b445c360772cdddffdf3c1409042ff. 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/TCABR1381802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1e731ac6d076d434e5cfa2491fab419bedaacaa3f471bc3e95274bfad366b6. 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/TCABR1381804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bb70dc60cd21befa2fdc519547bfd64522948d6f07b5ef1d7c0388fb869c50. 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/TCABR1381805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aaed028f6d86f4ad7fe941d6b81853d3fb70d35565a1673a7fc87bd3eff925. 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/TCABR1381809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c09ea6cd05c92ecc06bf443b94824aa7fe3ee1d16c9daa191d6a9cc41b484fb. 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/TCABR1381814.
El Pachuche Remix (feat. Denito & Los Pachuches)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ea0f7366c43935fff4fca191b3c6da343d217253936fe1659803ed66c2f433. 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/TCABR1381819.
Tan Equivocao (feat. Lapiz Conciente & Don Miguelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d7d5e0004700d47a7a54fd0e70ef789994755b3edb2d62a1a2abf420774ff6. 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/TCABR1381855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc089a00a9ac09b0e02c7dfcb836ceaf640c4d5c88c69726ca8f9ff27e326e4c8. 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/TCABR1381857.
Atento a Mi Special Edition (feat. Lapiz Conciente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4198fca236167fd25f6fc07f497eed93209fd96a454e1c2541170d59940a40. 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/TCABR1381859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c657c99d86ae1ac13cde0740eaf42d37bb33c25b98acf816179a09a2c08ad24. 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/TCABR1381861.
I Wanna Love You (feat. Lapiz Conciente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2ba46502f47a298d9a9026e194513f44e6e7982246e73b05c60ef66f738bc. 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/TCABR1381864.
Se Mueren De Envidia (feat. Lapiz Conciente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03736671dc698e4cf3edd16c3a188636278d0493436752328df9b5c116a9d7a0. 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/TCABR1381866.
Si Te Casaste La Macaste (feat. Mozart La Para)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684e6151dfed919045d06f01dee8ff6a40387542ef33b87bf81a74e803c27c80. 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/TCABR1381867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe71850914326b42209e0cdc7d4532beeaa71bb909283ae22d0f11d2d963b38. 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/TCABR1381878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cb06013a8ec3b224269c8f56371a664c92dbce561ef93387e788bb6a185cdb. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCABR1381808.
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 0x132bf722549465df51f1bf42eb957d80d3dc1b565d20bc3ab667faa282770e38. 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/QZNW72404559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a19d5479fbf91e1f9ac9f5abfbcdc108b636108ac47a72a95a431a4e0b000f. 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/QZNW72409319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c3a071488028a7be77e25c668c7954450f3859c6e31314ae6a8364a4ddda7. 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/USHM21006199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979762609bf8bc0dc0ecc80f6658a9eb532e30f16f6e4f301cd19dff79713588. 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/QZMR82200468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe413e910f1590214d2864edcfaaf4652abc6e8bfa7be46ae465d409a35d320f2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TX1565656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6266997b46075ba224fbc7dd3e96ee2e0d5b7d4198cd3516da69d9fb20d7050. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM4TX1565661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016dfc3f02b3e618013028787787a4e142c8928797d193d3a68e193e916505b8. 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/USLZJ2316276.
Wea Wea La Familia - JMX Dimenzion Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c746af561e37df9deb6d85d7d1e9000c6268c82ef171339dfecea7b559502ca. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USLZJ2316260.