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 0xad148de15a9af5b0c8f419d25371583a668746d949ef00909f2dc496194ac1d6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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
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.
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 956576 (2026-07-04T02:06:47Z), 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/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 0xbe309ae79f1aa6318582fb10df68e9f2645c3af91d7b96b7f4d4796ca9d65e62. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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 0x8ca27183d46a37c85921a75577b6220b706c3d055153973efe0254b9c52191e8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM4TW2292353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425c322562024ebd3d71de8d0ada3dabe85739c95ba892e91ea2ccc6fdcb5311. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/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 0x2017ea609571025e4817b86b324f9365c5545de8bb3eff5aa7548e001e51afd4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/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.
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 956639 (2026-07-04T11:19:20Z), 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/QZNJY2222946.
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 958771 (2026-07-19T21:55:28Z), 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/QZNJY2222952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefe5c84bc4d74c84d1e4e4278ef9b0b0b78445210f3f487df13957e50d5acb. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:45:09Z), 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/QM4TW2292555.
Coros de Avivamiento: Cristo Vive, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55b75c153b725d177e18ed394e48692fb6e0b6e848152678f9de8d85bf8cb6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:55:35Z), 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/QZHN42009226.
Cristo Vive - Coros de Avivamiento, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb24c92111b3702e3fff3207c16671814224802096e05aa20a0fe2cb1f15ccb. 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/QZK6N2221215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b5937072c44500fbe7befc73297615a71aad67ff4b4f632d1691b5de2b0d5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6N2221216.