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 0x64b055ffe63a4e8ff8e8addabcf39d022a96ff230c0115b455518069590f5381. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a521d1a8-6d5a-4600-862e-79c002f57208.json and https://artists.proofprofile.net/proofs/artist/a521d1a8-6d5a-4600-862e-79c002f57208.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 0x0518702060b09a241168f7027eae613bba842dbf7b654f1fa4034bb893d38f5e. 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/ES7030902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe358fb4d1c5030dbec32454d8b7df28ea558b07fa87fc5436e2d90a0e672a0e1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES7030902106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88f7917865b733e631b16a1740bec92a7f2a737e8ee8919e671c292f0f4af5c. 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/ES81F2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21723033904dced2418b6eabb2d819c37555fc60abf7f02f45a162d7ecbb700d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ES7381200650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe617577b9d72432dba7b3f502b9ab41d2bd229d9ffacf22f5c4117df8b4fb05. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES7381200649.
Ruido de Naves Que Parten (Banda Sonora Original de : "3 Bodas de Más" Dirigida por Javier Ruiz Caldera)
Ruido de Naves Que Parten (Banda Sonora Original De: "3 Bodas de Más" Dirigida por Javier Ruiz Caldera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d544b2a6abbe02de0ac941ab3ffe7f21669478a0d1d68524fa0fe01eaf37669. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:57:15Z), 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/ES81F2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac94c634cb236ccaa9596e8b28f6d5f2fd535067731603056ff5c3328e557567. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKK2P1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4ffb5cd15ff164c711747b9121cd899d1c165426354da95b760a27e70639c9. 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/ESA011300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd657e63c4828535719c46b733f3d2d31489e3ec5a6e43b6f22621fc9e29e356c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:35:17Z), 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/ES7031527206.
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
Contemplaciones: Homenaje Iberoamericano a Jeanette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904954a7b9a502326275120c9fcf2f6fe23468edba4df9f9a97bf8e137c24d44. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRX991586301.