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 0xa719acb218b026ba7fa48f2c2fab1127b6d9301c88863ce5935679f517c2f0fc. 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/86265084-7b56-465f-926e-d2d478c31364.json and https://artists.proofprofile.net/proofs/artist/86265084-7b56-465f-926e-d2d478c31364.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Monde Est Gris, Le Monde Est Bleu (2022 Remastered)
Albator, le corsaire de l'espace (Bande originale du feuilleton) - Single
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 0x26e749a38d35af10f735730c8335da33539dfed0a9894628d30964a4bbc3f2e1. 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/FRX089850120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e749a38d35af10f735730c8335da33539dfed0a9894628d30964a4bbc3f2e1. 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/FRX089850120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caf90378d71f83f5ebcba058b4ac2b850d5c55862248ba743c77f78b2cf64a2. 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/FRX089750272.
Le monde est gris, le monde est bleu (Live)
Age tendre... La tournée des idoles, Vol. 2: La magie des années 60-70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa872c7b5a4665eba596738c83fa455c3e01cd2dd996ea320f7d72c72f82d33. 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/FR2HT0700220.
Tv Toons: Les meilleurs génériques pour enfants d'hier et d'aujourd'hui, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e749a38d35af10f735730c8335da33539dfed0a9894628d30964a4bbc3f2e1. 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/FRX089850120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caf90378d71f83f5ebcba058b4ac2b850d5c55862248ba743c77f78b2cf64a2. 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/FRX089750272.
TV Toons: Les meilleurs génériques des séries TV françaises, Vol. 4
Une rose, un baiser et c'est tout (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb3697301a8143d3dc8f3f9dd71cc13cc68e3bffb9b4935f1286ed1621c235d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR2HT0700230.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0e222827025bb7ef4eaccced643259f908de09a32c3156d5aaa8873c925be0. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FRUM71500650.