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 0xaf2dbdcd433776a98cca3f4fdde8212a4ce77b35408de6f094e97d9d1d8bdaa7. 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/01d216a2-0394-4507-8e7c-04f5db67aacb.json and https://artists.proofprofile.net/proofs/artist/01d216a2-0394-4507-8e7c-04f5db67aacb.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 0xa6e0acc2eaa195d529cb67ac620739acdad72de1f805259ab2fde31a56a03284. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FRZ077300574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfbbd0a60de52c02b1d2003f7c7df22440f91917deab1c051d8a2501f5c60ae. 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/FRZ077301490.
Antoine Ciosi chante les frères Vincenti
Corse éternelle - Les plus belles chansons vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71830244f4e5336bfdf44399aff3038db6980244bec0df9776a2917a3247025. 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/FR6V80043507.
Corse éternelle - Les plus belles chansons, vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b0d56d19d95de3139d93fd3f3c63604da05daff5620f9f25a915a9aabe6877. 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/FR6V80043950.
Canti pupulari di Corsica (Chants populaires Corses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15054fe1da590f1afd5a2faa38ed0941d2887440249a759ab8ce2a676f30dc. 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/FR6V80044711.
Chante Les Frères Vincenti - Canti Di A Libertà
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4524a37acb9d2365a923a973be1ad814e8bd622b970e8d1c3fcfd8ed481ce0. 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/FR6V81017593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258bdce90c2c0b481b75f696d0909baee40c7f19d3b38b1e81d71d1374031a6a. 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/FR6V81017598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d700ed072f113c82dd3c6f65fe7147317244e93d14c661664c60b6daa5600ae. 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/FR6V80028351.
Corsican Songs (The Greatest Songs of Corsica)
Chansons Corses (Le couvent de Belgodere)
Le porte croix (Les plus belles chansons corses)
Les plus grands succès d'Antoine Ciosi (Les plus belles chansons corses)
Le prisonnier (Les plus belles chansons corses)
In Bastia (Les plus belles chansons corses)
Casa Paterna - Les Plus Belles Chansons Corses d'Antoine Ciosi
Le Porte Croix - Les Plus Belles Chansons Corses d'Antoine Ciosi
Le Prisonnier - Les plus belles chansons Corses d'Antoine Ciosi
Le Couvent de Belgodère - Les Plus Belles Chansons Corses d'Antoine Ciosi
La Vieille Guitare - Les plus belles chansons Corses d'Antoine Ciosi
Les plus grandes chansons Corses d'Antoine Ciosi et Maryse Nicolaï
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dbfea6235fd7a24596ce9a3abcc59eca49872a0a0d9421e88ec6a2baf71349. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:20:04Z), 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/FR9W12011810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f84ab30f40fbf0d1fb20b40ba4253d802c49927ca9e1a0fbc785d521f81a25b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FRZ082100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a1b7157b16b20d3709f362fed23c2c96389187a66a4f275e38abc08ab8e3f2. 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/FRZ082100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994926545ecfc1b71fb02c362431cfa6e70f15c21da231fa0c37949b39948cc9. 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/FRZ082100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8287f86939f7174a9bd667562de19b2d4fb1e2a22c95c0ec5c28a6be03c17c20. 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/FRZ082100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d49bbe5f79b1da2aa4f05b7154de63f4e0894b15355dc5147e03b6107d37d8. 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/FRZ082100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d744ccb8a95d97e48c5539d175144a8ce7fccdb88bcec660179a1b939002ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ082100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2b16e8b3231616100eec64867acc2d6e211e8b8a7ae95a74ef0b130f9b3283. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ082100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a1b7157b16b20d3709f362fed23c2c96389187a66a4f275e38abc08ab8e3f2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRZ082100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f84ab30f40fbf0d1fb20b40ba4253d802c49927ca9e1a0fbc785d521f81a25b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ082100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994926545ecfc1b71fb02c362431cfa6e70f15c21da231fa0c37949b39948cc9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ082100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8287f86939f7174a9bd667562de19b2d4fb1e2a22c95c0ec5c28a6be03c17c20. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRZ082100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d49bbe5f79b1da2aa4f05b7154de63f4e0894b15355dc5147e03b6107d37d8. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRZ082100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d744ccb8a95d97e48c5539d175144a8ce7fccdb88bcec660179a1b939002ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRZ082100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2b16e8b3231616100eec64867acc2d6e211e8b8a7ae95a74ef0b130f9b3283. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRZ082100507.