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 0x7c42caa62ad9ad55f762ab939637d60081fca62c0b25a1e38c986f0ae650fc2f. 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/5ec26050-efdb-45e2-a47e-7c8be90b2ae1.json and https://artists.proofprofile.net/proofs/artist/5ec26050-efdb-45e2-a47e-7c8be90b2ae1.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 0x7c0a4c3fbbae097ba0a13476526d1f2177086cbd99f191b37dfdd489b25731f8. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCACR1600123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2c04115a5c2b3a30d398da6c8a80d6618bcc0b60cb056b41d67ba543553c43. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCACR1600124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94067ce918d580599e87b28c47f0b447a321902b903cb0e1f2564851fe64183e. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/TCACR1600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31bdfdb3300c6fd7199d14e3440c164b927c1b500c61bcae3ec6cca5210a91f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/TCACR1600132.
Ciudad De Colores (En Vivo desde vida internacional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24baa5afefe6b0fa7d8cb5d72c16bff11766988d87c7a7ad23695d0170f75f7. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USGCV1282325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616f661535a2bf1feb70ce589cf7c1b182d8f629a82541a565773eefa4dbe986. 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/USGCV1282326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50b68c8cb4cbaaf0b7a101812482febbd556791e958f21575aaf592be629892. 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/USGCV1282327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7053bec11c3911c2137b69cf7ae67c0cb389cdc8ecc6fef9bd2583408a1a3e9d. 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/USGCV1282330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf574399c136a89e6a3588cb39947cc9e23ea5da17c463b3ee8bde8daee4ce7f7. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USGCV1282331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6b8d6505be0b26da17cdafd89808b29ded8ff387dc11d78144e87ab9d852af. 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/USGCV1282332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd83b49c44135034603a6f9fcb8696ae62229f51c49c0ce0526b2141fe6f1c4. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USGCV1282333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ecb2a429175b41bba66bec202c8f990a1ca71489e43090ff3ac3274a9d90c3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USGCV1282334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ada0d6d62d2b8bf78dd9a0a212a6bce4073bbe7d709969bf27f8c89f8f8137. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/USGCV1282335.
Vuelve Otra Vez (En Vivo Desde Casa de Dios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70676eb9cd7e61f7cbba1011d42344ab2259c911c5b6de637e143b3114913a06. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/TCACM1676217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828630d084d1ffec02706228239fd32a1cd5d4469fa9a2ebad5a1114c3f0d8a4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCACM1676226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3e9857d3fbca54ac0d036801acb92a3247274a26f73964e49ec9fabae3e934. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZQAY2252895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7082ab044546b38796ec2d0b0044a9f170a7b50c93436246d0be0643395e57d0. 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/DGA0P2320639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ac543152ce57245c5881a0145e82778d648302363e9ca323c3f62ca14661c. 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/DGA0R2318259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5115967afd1382a540e860fc118c46b42dc843d8970fb07b29ec5e5b1da8dc3. 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/FR2X42472069.
Danzando en la Tormenta (En Vivo Explo Music Fest 23)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7082ab044546b38796ec2d0b0044a9f170a7b50c93436246d0be0643395e57d0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DGA0P2320639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5115967afd1382a540e860fc118c46b42dc843d8970fb07b29ec5e5b1da8dc3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR2X42472069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ac543152ce57245c5881a0145e82778d648302363e9ca323c3f62ca14661c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0R2318259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc768a9de6e5bcda872ef609ff61708acba0db75c577cceae58335ff4d1f7d95d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAEF1910541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ab83d7d49d07b50c96395e5dd3655e89b34e6916fb5a64a84b7ffdd77246fa. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USANG2032963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463eb4540e794c8a961d9b4767b1aad1e75993b29679afc1a5bd09fc91d5dd32. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZSYP2324366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf12ca75623a6c654b9c94c982775d38be272faf633dce0dea7f2ee32718546. 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/USHM21922998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e286c88edacfd058d34cd01b4738d6feb1c3f62a8d8935237a1ae5ac6f5a9a5. 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/QZK6Q1929313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463eb4540e794c8a961d9b4767b1aad1e75993b29679afc1a5bd09fc91d5dd32. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZSYP2324366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b0278439a0b2e51b65949f9f7b2f7033bbeb3666b8d2fe1b2acdd8f3853da7. 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/DGA092310419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafcaf40f9e3d3c081f4936188209e416054b9f2e6ca773e91f5153e4ee34ca. 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/USCGH2237328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f47db97ac7193e6a3853ac887619d2c84ac316c87ac1022419cd2ce6c1e7815. 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/USCGH1121175.
Incomparable Dios (En Vivo) [feat. Bani Muñoz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8146d8543f991f3276417235e85027347df063a5f3d3c8a1e3fe1cbe0b19066. 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/USHM21586704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2720c15e416bab7a8980bc1d77dba2ae7122c5b3c2a47ffd5ec3a61e5276bbe0. 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/TCACX1761620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df78934118b86befa674cb6d01a68152bc1834bbb77fd79f31bf312ad274969. 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/TCACX1761630.
3 Décadas De Inspiración (En Homenaje a Aníbal Marroquín)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee76767fd5f3ce3feb8b8353831b3c95e5fac4d4e2bc573f0f990ae325c4aa. 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/TCAGH2285365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8738e8c704e732220cee5457bb18fbc4c06130457b2af91862ab9044423bdc. 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/USANG2236280.
Guatefest (feat. Redimi2, Alex Zurdo, SoulFire Revolution, Bani Muñoz & Banda Alternativa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82913678284193088d7cb112e42f1d7e818ac8cff065e611606dbfcb6a92cb3a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRIMU1702577.