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 0xc6fac6801d9eca43863d63271ecec1958103c007af8b8c908bdea6f3505d422e. 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/68a8669c-07ce-486b-b6df-5303e44f30e1.json and https://artists.proofprofile.net/proofs/artist/68a8669c-07ce-486b-b6df-5303e44f30e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonideras Clasicas "21 Exitos Inolvidables"
Karaoke Religioso "Las Mejores Alabanzas Cristianas"
Karaoke Religioso "Las Mejores Alabanzas Catolicas"
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 0x308a15e00e27e62ae835af86ee7fab7ebe773fdc2350157710977d7f82028d76. 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/USJTQ1107871.
Mixes de Locura "Torito Mix" (60 Canciones)
Tamborazos de Mi Rancho "20 Mixes las Mejores"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0fe98bdb13c98eb51bb4a661e128664af2f13ceea0b4c5acc8666a022277a7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USJTQ1715658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c965c77b4d1de1c5249eb2a801bbf38e50bddf4db739614b2928560909baa6e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USJTQ1715585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e956d778448ce6df1a083b97d26186db3f894cd78471992c0d1cd861a56d94. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USJTQ1715592.
Guerra de Tamborazos "25 Exitos", Vol. 2
Guitarras Mexicanas - Joyas De La Musica "30 Exitos"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a8b40f970bf0a0a4c48ea8df41608a44b4876a71c2a4f22336780ce3a24115. 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/USJTQ1717043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5c8ce18ac59bbf201034b960884a87ae11af619108a36822cf8fd7e50a07e3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:11:38Z), 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/QZDQH2305366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edb72303657bbc701a0ef76a1f49d13afc8e7b41568443b89bfab9ed2bd0f78. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:41Z), 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/QZDQH2305367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7088c36b02e96e5c2475d364425e9e0f7b362c9a3506aba22614387462f5d60b. 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/QZDQH2305368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36be36579dd8a3c21ebcc7079aa827c17991c1b0f704927f266e5424b714e952. 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/QZDQH2305370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3600bf19ff7cc4c4eb29349ef98b68bbe96b51c8c08a1fa7fb7e9472b86972. 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/QZDQH2305371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01f2a226a36c57434a3d6e763c2635fe9317c416a3aa17ac7f35cf1d54a5d96. 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/QZDQH2305374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda0e19193667da93ff2c4158590208ca01cf8a1e0097e5a0302514e90da5400. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:23:30Z), 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/QZDQH2305378.