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 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 0xed73f35df8cb4fb49f897a6a85d9d18e1f0f349fdea86d4a0648b1ef59305e09. 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/be09b218-3208-4e3b-bb5a-6a8700957996.json and https://artists.proofprofile.net/proofs/artist/be09b218-3208-4e3b-bb5a-6a8700957996.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 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 0xaba3108a2c8567c9d8f94831ad96d05334cb6aa007f8db0eaeab4dc41a5917e1. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/FRZ028100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bd4eb3edf76c5406e15cfeb48e24a28c95251dede569eece04e6ac6e6d8670. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRZ028202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764c41e7ee6f5e900a116459e554f6872d9d5cf687a0c3c3311588720852a499. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V80001353.
Les Forbans Chantent Léo, Alain, Serge Et Les Autres…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c70309251f2c4c74fdda97ba3690dccd4fb2498d694b30ae3c2d6a8d778c917. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR6F31170170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6985f6893e73c701977cd49827c93c57ec0a0fbf72917309fde7a620f1a0a00. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FR6F31170180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18793127b0cfe00a541731512790871d328746641b647f693401ab0ddc3076c. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/FR6F31170190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0201ab4a5297305b21381dc14a0134a442d967d121386d76267c09d3de22b4db. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR6F31170200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2133eaf388d39d42c64a6c7b7452177ce57335682e8e53901506af6e1f38fd7. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FR6F31170390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d58e45938ea37dda5b7238b5d068e58a566fd90b5fd87a60dad4420a36325e5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR54E0600410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b29c45a500eefd00f0da864db72db5d9615f886044744136c0b9a1c6964d4aa. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FRZ028201980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b29c45a500eefd00f0da864db72db5d9615f886044744136c0b9a1c6964d4aa. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRZ028201980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607be8995c3f1964feb0b1ec0970251be141851e8019ba2e6ab6fb51dbca3dd0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ028404140.
Age tendre… La tournée des idoles, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5b11a1edcd6c95d2718664fc215b7ab227674d38e7e99b69d5a9f4c3a571f2. 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/FR2HT1100340.
Medley: Chante - Hot dog spécial - Lève ton ful de là - Tape des mains - Flip flap - Chante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c2e0a5b411f85c83f488daf4c3e757d90630f2c83d095ae5baf79527459eca. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FR2HT1100350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d7de69e4e57f5e0181be1b64c8877e3ebea87e74c8d4d2b5d870688b16fae9. 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/FR2HT1100360.
50 Tubes Fête #Party #Hits #Années 80-90 #Disco #Funk #Rock #Fiesta #Slows (by Hotmixradio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119c2f0b11d73d64d5a7eddcf51de9c779bbefceb5a23f9ddff631e7bc226725. 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/FR6F31643900.