1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4a510b0c3e40e0b5de12b007742169bbcdfdd2379289988826d177483c41ca4c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef1855bf-0070-4beb-a350-15bb224fc018.json and https://artists.proofprofile.net/proofs/artist/ef1855bf-0070-4beb-a350-15bb224fc018.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 → block OTSBitcoinBlock must exist at that height 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 0xa162f3405c4fa4b7724809917dd2bd8e9b553a7f001690b8869f01fd8919e1ba. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZGWX2208144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2cbd9a8742529a8bb204848dc1632dd1868bb4e91fc0587e676ce1c3cef635. 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/QZGWX2208147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47ff4988bc4759a66406affdfe985496ae9efe5c8fc95e16f681653ed0048e3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGWX2208148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c4400556a896b9500297dfa2719dc57436925efe468b00f94936d1659a5f5e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZP7F2530194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf22706d267cbb51d2adbf153ddfff36f0b27a00cb254dd3cc5457085b0d01dc. 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/QZP7F2530195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c22320e31771912cac161aabdb55c0ac4941c959e33140aaad3177dd8f01bf9. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZP7F2530196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946ff437835a8023d3ef43f4de5fb3ea388503a3160957a6007e49935666c34c. 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/QZP7F2530198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df3f85701ecfde247037045656e134acad180f04c3ed54cab458cfddd68382. 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/QZP7F2530199.
A Solas con Dios: Canciones que Nacen del Silencio del Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56950c6c31be2e521d4e662c05d0ca6fe68cae44bf9ac32c7f93c234fad5029. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZP7F2572696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f8d8a2afa51408ad853baecc580e74bad1efa3b96c532133fdfc6cf5395763. 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/QZP7F2572702.
Dios Habla en el Silencio que Nadie Escucha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248917ed2c290b6d59d212ab113a33b6bb16e652fd39bdb47770c4eb6a0d21f6. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZP7F2572710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eea2bca16d83f7278d5f6a233c721f0bae6aacc52d17d54534ca7ff3bddce9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZP7F2572712.
Desde lo Más Profundo del Corazón, Cantamos al Señor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e14e61ebfba12ab5972d833ae14860fcef267c012e518133c166c01aecd1af. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZP7F2572737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9886c707d31a4db206ac025b2a2b8b2e438e9774626249bfd921f232825c4a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZP7F2572743.
Cantos que Abren los Cielos y Llenan el Alma de Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff739a0734a96c7ad6eefe9eaeeb11b316cebf04f15542121e87656506c295f. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZP7F2573072.
Un Corazón Rendido Canta con Gozo a su Salvador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09111e0bfafe051117b65be1d09a6bcb30f5566404ccd7d41d65508cddf29ee4. 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/QZP7F2573042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6188635214946b272e0797512778cf4a948f50c2c1033a1cedfacb74dd3915. 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/MX2832512294.