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 0xad148de15a9af5b0c8f419d25371583a668746d949ef00909f2dc496194ac1d6. 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/3508c451-efb0-4993-890d-ff84dd9f4dba.json and https://artists.proofprofile.net/proofs/artist/3508c451-efb0-4993-890d-ff84dd9f4dba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cristo Vive, Vol.7: Coros e Himnos de Alabanza al Señor
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 0x27e4d3bccdf31bfce461243c4884d31a620e92ee5f9af689f4403f81bf044264. 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/ES71G2153217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53e09863e53c7bc6fb3efba8a318a1b17952f4da1338b55607a6c1eda4014e5. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ES71G2153251.
Cristo Vive - 26 Coritos Evangélicos de Antología
Yo Vivo Señor por Que Tú Vives / Maranatha Viene el Señor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf133fdc62186b7c77448c3e4a62164daac2c603da8b48de9b1b3a3604e8d8fd. 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/QZNJY2222586.
Cristo Es la Peña de Hores / Cristo Mi Rey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6b9ed153bfcde4b05ad39d91b23a2848a0822c1ac7a2ef4628890e794ee98c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJY2222588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d67c6333b9ca68018f9ec7bdd2c17e072e0ddc15edf920c9abd60d6c6fe596f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZNJY2222590.
Un Palacio Tengo Allá / Camino Hacia Canaan / Jehová Es Mi Luz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021b43bab28631bdbbadfd7ead7007e002c6a4eab6f0d110cd29976f79bc24eb. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNJY2222943.
Vamos Cantando / No Importa la Iglesia / Este Es el Cristo / Envíame Señor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6daed3482c44360f398417633cdf6ec20378a9fedc8687a537f5d305a78784. 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/QZNJY2222946.
Cantad Alegres a Dios / Alzaré Mis Ojos a los Montes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1720d8d5bbcfc3b2797eb0586f086cd9eb227d9486c4696ee897e4fa17485eef. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZNJY2222948.
Te Alabaré Oh Jehová / Grandes y Maravillosas / No a Nosotros, Oh Jehová
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa579ba278aa9369c7acb4146334718e9a5e823800e45cc3a7467e2f1caf6f7d8. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZNJY2222952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe309ae79f1aa6318582fb10df68e9f2645c3af91d7b96b7f4d4796ca9d65e62. 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/QM4TW2292351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf598c94317ab28ff868f9960a4a2ee8341a60bf71a25909ee58f60bae5f3282. 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/QM4TW2292352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca27183d46a37c85921a75577b6220b706c3d055153973efe0254b9c52191e8. 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/QM4TW2292353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425c322562024ebd3d71de8d0ada3dabe85739c95ba892e91ea2ccc6fdcb5311. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM4TW2292354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5e11a2814652f0824c281e072f45bb39e8cad66b3af11c0236752f6fa76db. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QM4TW2292355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9364849bbc31a9e931e193806087d9d95b044f320b4b57a7f3711f6b9cb6b310. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM4TW2292356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2017ea609571025e4817b86b324f9365c5545de8bb3eff5aa7548e001e51afd4. 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/QM4TW2292357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89011142ed0d9daa285e84f0e67524a6a6e6cd83a974dec3b952635575565c8. 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/QM4TW2292359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417dbb589a09630667e2d0b3589c82f9d5c55c6c3dc5203b3fa556cde43f1613. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM4TW2292362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefe5c84bc4d74c84d1e4e4278ef9b0b0b78445210f3f487df13957e50d5acb. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QM4TW2292555.
Coros de Avivamiento: Cristo Vive, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aefe86039b4991ee1d8ebd629627c0847d509411d3c10d27250a6484cf4e2f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHN42009218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55b75c153b725d177e18ed394e48692fb6e0b6e848152678f9de8d85bf8cb6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZHN42009226.
Cristo Vive - Coros de Avivamiento, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb24c92111b3702e3fff3207c16671814224802096e05aa20a0fe2cb1f15ccb. 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/QZK6N2221215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b5937072c44500fbe7befc73297615a71aad67ff4b4f632d1691b5de2b0d5. 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/QZK6N2221216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0a15695ceed528decae3e61fb0192e75b355f58bdc65d1753c2813c44c70f1. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZK6N2221217.