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 0xd73cfecd27d912ba47caa413c8ebe9575fcd32aeb73e283c43eb80c477e6b0ee. 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/47c3fcd9-65c6-4318-b55d-4e2ecabff19b.json and https://artists.proofprofile.net/proofs/artist/47c3fcd9-65c6-4318-b55d-4e2ecabff19b.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 0xfb192943f5c7f4b68ea371a79fa6d5b0c13f93dd70b09994275cf777f09bc7c1. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QM4DW1750581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2bf7a1cd8b8746cea4bc4f10be41baba32568ed62f5820b10acdbd639815d0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM4DW1750574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340c0fa87b86f0578a97894d289837aa37665705989cc54b85075cd55d215452. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QZARB1840309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98163b74986e6b94d39c8cab058f43fcb8eacac894c9e0b98e6db9b486492429. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXB871800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839553a8b178e65e488e3891ed0bd8709bd2a10b1154953065f48d7071d9710a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZHNC2332132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a316013233f3aa8a7b0ac264de0b086af5dd904621f467703e5d465719272ca. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZHNC2332134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7719507d69dd8179a677a7a279fce5d4cbf0b8be2493eed70df6187bf3b3043e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZK6N2386666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe539b9aa869cc854135e5f451fe56fef40e2349d4d2628a3ccf286977a1ffe9e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZWFG2347758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d9685daca3f4f7f272b7e20769484e58ea85f06d473db80491257f4dcdfe66. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHN52485386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6000d2557fda5be76fd1886828dc183336a9c075411c5dbe73351aed37d8b2. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZHN52485387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff28a31e9fbb82355090a521c5ef6ef647bacffcef0c2ff93a4f09501ce7fcb. 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/QZHN82478821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57de706b98390bf4c86b159f6629f86e221cb969d8924763f8d7766815de65a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZK6L2462474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3579ba278a3ebf4f7026b5864e54c7eca8e431e83c8c980fcd8a273f64a657c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZK6L2462476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3852928b4d1748ba7ee7a3adfe911db90361f071ae6f4a4cc70d8a6c2528bdf. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZFZ42590902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0664bdd91c7bf69c70c223c28173c24aeb958d7075fc03650c9a875537103f8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ42590903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb628ac060b4203db57d85b8ffc9ad06b33078646780337a1631f2af80b24816. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZFZ42590904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f02d6fde6248f339120a19861f9b69afc9e8dcff3b22d424bd2c1e7f8497c19. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZFZ42590905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5c2d51bd3d6cc241cd15d4e853debf3d661d172fd00ce36ab4179ac4a422e1. 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/QZFZ42590906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9814c2ef2bec95733ae72a55516ea74dbebf81338029061d1c42ef4c2eb1a522. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZNWR2554980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda8763acc6503be96aefdffbf133d36143a4c206b43a1ba6c43c3f1f3d267d3. 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/QZNWR2554981.
Yeshua (Quiero Conocer a Jesús) - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008d0ffb87fcf61ae0c2b076a29b3839fca2427ad5a6008506b33e879291e6f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWR2554982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4915001a2c3084f69e8040757ffb6ea3e29570e2d0452589d74b88d0cc583a. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFM2503282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63032098672612f057019c7c37132b1414a82fe210ed258dc70308975e7f4a10. 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/QZTBE2371469.