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 0x113cdbf25fa16ad20e90c12bb2fff2dc5acfa0323ba3d4d470cde9e24546ee20. 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/24db95b3-ca64-4b2d-bd0a-ba469a506457.json and https://artists.proofprofile.net/proofs/artist/24db95b3-ca64-4b2d-bd0a-ba469a506457.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 0x6271efefd10b8e3539429d1122062b0cf29fd9969f99aac09b47b2f8218b4e13. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ART0G1206157.
Mano a Mano de John Jairo Pérez Y Darío Gómez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d77dd16f3aa8b3827be5184ed86d914394e7fda1da41bbc72979774cc10483e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ESA011770872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f280d68797f5fc493e146e12bdd76edf0b42bbef347d950f50e5d65d6507d21. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ART0G1206081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6819ca19a62f400eacda332cbddd9b15ab8022fbc423b226476916dd8a805197. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ART0G1206085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb90b2134ce114f7161880bfa21215a69ea36105b30027e9164273e39e507825. 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/ART0G1206113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdf498559190bcf393c3ce5d539e420579e085ed5a253e81f10ec736e178709. 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/ART0G1206114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32c3914e2daab1fff67c95e8abd3348be965924abfa1ba03e6b73b6fa79c357. 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/ART0G1206116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e88b916f8780d582af98b5afa930965b060d7ae5cbf0f68633441affc81a0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ART0G1206117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041e899016869352f37a6635e380cc7c841c3191003a23532953956b5f7e49aa. 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/ART0G1206118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c37cc2aa46c79037070a26eb8d2b6771f19b4004f0070521162ed1dcf1ae3d. 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/COF011700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3b9ba7da7e38f390f74a408a06b270ff8b7d6ed059d741c884875172f17a78. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ART0G1805559.
John Jairo Pérez y los Alegres del Valle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eaeb297089b8dbdb817e27804e7f4e86dc8bb1e0dab0192646ce9e7f69f7b9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:22:07Z), 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/USL4R2328009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b9090b7b3a6cd97d4986d9533678fd9bf0a2e92883e1346ed2e09791c7478b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NL8RL2530178.
El Brujo Sabio (Homenaje a Gildardo Montoya)