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 0x848ead02d6839ee3166711a1a08b8faa2e82fb8efc8a0b7135add4f4b3f13951. 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/076b0afc-c8ca-4c4c-81c8-6a2d1a5cc4eb.json and https://artists.proofprofile.net/proofs/artist/076b0afc-c8ca-4c4c-81c8-6a2d1a5cc4eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best of Eric Virgal (Jusqu'à la fin des temps)
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 0x4e18302fab31d83f2f364e72828476099c1a50de112d5f694d59d3adc5d80f9e. 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/FR6V80631864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe8a44fcff0587b59b80d68734ac200ebbd946c02cc289c8120eafb614fd6bd. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FR6V80631866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127ed04a7d1db76b26270e7a437a5324d0e253a6558d1f1693d674f0dbc2ec81. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:50:18Z), 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/FR6V81189267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8ecd020d1ad4d1a5906c9dea9d81cd5c7f3c5ea290cab8ba0c6f5e07816fd2. 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/FR6V80689560.
Les incontournables d'Eric Virgal (Koulè Kafé / Eric Virgal / Tendre et rebelle / Allé simp')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fab778045dbed0dbd0492b0d664f2b237ec9f11619bca581d8b4d775f32303. 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/FR2X41556184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfbd3908b12d60e6f03582a038683b15a9025cef759cddfe11224d989e9248d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:02Z), 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/FR2X41556188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a331babb57eb5d4f540e77bcf709b8b040afa6ee81d1f95fd9f9aba3d2e306c. 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/FR2X41556210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98faf13dca3a404c7776dcced774442ee4d166d5f96ee32ad2f66f531510f60a. 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/FR2X41556194.
Dix ans de Zouk (Les meilleurs artistes antillais)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc246ffa8b620887c52d7319d603ef81c42cf84a2b766e3c31b6a2cac9193710. 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/FR2X41557529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15f1037b0417b604bf4800f029c8c801ea95b28429ef3bcc1561413bc965265. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR2X41557546.