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 0x182ca2296a794df96dbba41d9887c3115a56f914589ed8637d0ad72a7e60a39b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ab788c9-da6e-4f22-91aa-6cd23c813d20.json and https://artists.proofprofile.net/proofs/artist/6ab788c9-da6e-4f22-91aa-6cd23c813d20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musique celtique: Envie de Bretagne, Vol. 2
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 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
Bretagne: Les plus belles chansons du peuple Breton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492184045c3cb63909b489a58a28a9b8a1db33504a4c3bde78b70fb3f3f9edb. 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/FRX611400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad16e1019cc8359f8a320a354b207012160da9f3402b7f9f66c15d890470ffe. 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/FRX611400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebf804f22a80a72dba3909dd6e7041dd449e879bf052264db489007ff19b3f9. 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/FRX611400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae38dbbf0051ce076b59375782d55ab5360634a45298d52f1dc0cb2e025c422. 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/FRX611400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe73b433ab2891ed6f036d79cd7d856496abcf3f5a97d641ae3907e380fa263. 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/FRF468800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d590456b3d80813de1ea387272e2aeda8c597e4720e893a02b30b88d32c3c7. 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/FRX611100003.
Le sonneur des halles: Les sanglots de madame
Le sonneur des halles: Magneto André Maguet
Bretonne Attitude : Accordeons (Diatonic Accordion- Celtic Instrumentals Music from Brittany - Keltia Musique)