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 0xfef3bcb52bdf3093dee771ee1a5a3a485f27d0a7ef70d07f36a987929ac3d06f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de9c3286-35c4-424f-a1a0-10c40f5b0e3c.json and https://artists.proofprofile.net/proofs/artist/de9c3286-35c4-424f-a1a0-10c40f5b0e3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musique bretonne aux confins du 18e siècle
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 0xfd2bdfa20a3ce77156f756959b03f20320b097e0665ed551d401fd6d6962f6c0. 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/FRX611900300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3a2508f10729bf738ded2e039ce3fbb85845790c49ff21a031ca76d49467e6. 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/FRX610500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d46643081ec8e029f8c7411570611e5003059eb9159f4d8d1aea8d62ac7a233. 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/FRX610500303.
Er beerran dé hag enn hiran nos ag er blai
Fallaen (The Milestone Collection of Breton Music - Keltia Musique - Bretagne)
Me zo-me deit ar en douar e-kreiz el lanneuier
En Amglezed bonteu ru o des douaret barh er Pouldu
Musique celtique: Envie de Bretagne, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ff7cfc81de7d15098b4054a4486c49cf616cf7ed031a786bf191b6788819b7. 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/FRX611000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c309b17eab844594a6ceb1faca690eda3c7b248d6776c2e3a68b461dd2168da. 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/FRX611400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe7c9e74cf97fdc3d973c466e99c943add16af9296869233f5170c3d15f2914. 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/FRX611900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e16d1bea93e17c02c259550355d7fa367ed72e4d8d948fb098b65ee43ff5da8. 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/FRX611700102.
Les ombres s'y promènent - Er blead 2020 - Kas a-barzh
Du côté de la rive - Première ronde de Loudéac
Fest Vraz / Musiques de Bretagne / Keltia Musique Airs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41019c684b73bf7001e83484d636ace564e0e36abec0cbbc58e5b8608256081a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRY479404601.
Ar galon digorr - Moueziou keltieg - celtic voices from brittany - voix celtiques - keltia musique
Loeiz Ropars ha Kenerien Danserien Poullaouen
Musiques , chants et danses de Bretagne (Celtic music from Brittany - Keltia Musique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c40dac5d06eef98b7875d0e3396683f9c79bebd757f188bb0932e388cc336c. 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/FRY478600102.
Naonteg - Spered Santel - Andro -Laeradeg -Ronds de Loudeac