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 0x9431ea7fa0661bcfeaaf2b13e18ade7a5b2ac0c8abed4978b88083ce65268743. 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/12e81eb7-d674-4b5a-a92d-fa020c7c985f.json and https://artists.proofprofile.net/proofs/artist/12e81eb7-d674-4b5a-a92d-fa020c7c985f.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 0x9140a4b18d30ce30e1cafbadaf46324ec04e7ac68a07dfc67d265611c9a27375. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM22418406.
Espontaneo - No Te Rindas, Tienes un Padre (En Vivo)
Bésame - Espontaneo - Ven Disfruta Mi Adoración (En Vivo)
Canción de Navidad (Razón de la Navidad)
Dios Poderoso (Quien Sino El Señor) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9536a3f7508dcbf44bf11579057c0216fc42c98ae815937fecb9829da9bcf0bd. 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/USU6V9992867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd82caab4747c9473d000052e8218725cad63e9f3c696b89bbd08f5583e418c. 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/USU6V9992868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8578180e51bbfb0e56b31547d9d76cbad426366fb8ca35ab2181d518aed1ff. 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/USU6V9992874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe181cf74fc9832d47c8355ea5d099889a7599b198f98e83fa81f5e835e0d35. 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/USU6V9992875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8c90454b43838b6bbad114152f9707bbd87a79b90d617d9437a0777f3e7a9a. 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/USU6V9992880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9d10d67422c9b2851f801eb86080d5a6855ac624ecc1fb3328137fed41ad67. 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/USU6V9992881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0064b806a4ec7e4b32ca5d98839a5d3cf93e01f779258b09ae2eecfe724b6b5b. 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/USU6V9992886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d837e2463057e53ad73e6eef1f7c7b1dc6efc1dbd85c112a7ae3498bc2e8cad. 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/USU6V9992887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeb5ea2e044c5bea6ff3a0c6ce8b748fb1d323fe6ec65eb86a13ef5f3727086. 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/USU6V9992892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09068df9f31c2ba4e51b83962825239b9d191221f5d643831aa7e89daf010bbd. 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/USU6V9992893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4261e1af49dfbacd643b2f6f47121813ef63a0920090722d1220f1e9276ea5. 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/USU6V9992898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5563ef3ac0aab818827dbd4fa37295714208a411ebe4d935199c9cde41a3ff3c. 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/USU6V9992904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52a9e5416d5295fa723e0be7ab6a7d00af097071a805beb809610acb7684d5a. 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/USU6V9992910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28438876cdfa450e7c2d32f828c0025899c7365d7659356ecc66c9fb9fb23878. 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/QMDA71504734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a015fbed84888539768fdf000812324e8a79577824c8011ab4cb9532c2814a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USU6V9992905.
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