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 0x3a224b2b0a5afdaf08d879e4543a98c13f533a1a979ea901059064f71e1e451a. 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/e1507b05-7aa2-40a4-9de8-43e6b1bab0a3.json and https://artists.proofprofile.net/proofs/artist/e1507b05-7aa2-40a4-9de8-43e6b1bab0a3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc86d449ce7f57721860dfdf75a9142e30ed48fc1c78144467fafc9caf8d760. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:21:16Z), 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/FR8GU1700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26b0c882f2ea27c6d576ec1a2e063f4bfe306d7f6a0fa918d832afa37cf5dc4. 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/FR8GU1700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911cf879640c978ad3d98a759a5e4033a55303ce83143040402c420a523dce64. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR8GU1700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233ae68ff22e5fa45636f4c9a77f0bf11307a282a347476e273efa757d202647. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR8GU1700095.
Le Pouvoir des gens (with Jeremy Frérot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f31681a74540485f0937cb5ac3ef55096b35c9389b86a41d021a6f75ab5f741. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR8GU1700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd129851c0d3e637f01854a13273cbb400887f646d176c3212e46af695f493995. 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/FR8GU1700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71aa4bc8b523917e13e79b29f773602948a02a453c6f3287acadd8065194f65a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR8GU1700089.
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 0x0ed9880a242e4dca9b7a3eb49aad02c5f2a54734501d046b5e11188bd8b832dd. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR8GU1700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954fd67c31cc85364524ce96ec9786321d927c3b422e120f0652de1de520228b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR8GU1700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51aed98d27c748bcc4d0d48e41663570df4956a8456253aa47b7ff167ed4bb3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR8GU1700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a88ba407026714345cffec55c2d25ee24038915c41237274bd42684bffbbe6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR8GU1700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5ccdc09df44c39fb00640c2f18fa7930948f7a155d853cf78372fc525a4fcb. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:46Z), 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/FR7MH2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85928b8843556373416cdae2d93777b295cb59781a25689d873fd10204b9dced. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:08Z), 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/FR7MH2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee84c92bd0f016d80f5c7d42956d7fcc6b4ce43306f01b07b1801302f4eeef6c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR7MH2400030.
Récalitupon (feat. Laurent Lamarca) - Par Ariol, Tiburge, Ramono, Naphtaline, Bitonio, Pétula, Patouche et Bisbille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77198b525bd8a82d38aee381632066b4f6ad95e1cb4a5bf32686ccb193d5c692. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ082300538.
La petite fièvre (feat. Laurent Lamarca) - Par Ariol et Mule Picotin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef6ba553d9f96b23d6a623c8ad3c6976ef50d5b30a78c6fc91bec0721e23e07. 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/FRZ082300541.
Hoquet Chorale (feat. Laurent Lamarca) - par Ariol, Tiburge, Ramono, Bitonio et le reste de la classe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ea5f928a865bb58dc6cdeeb75e5e0b3bd017361550fd8f54b4e8bee06bad7. 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/FRZ082300068.
Batégaille, Batégouille (feat. Laurent Lamarca) - Par Ariol et Batégaille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09ed45db5f60014419a88a41da804330934b1cb7ddf52018505173588a5983c. 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/FRZ082300371.
Pas touche aux cadeaux (feat. Laurent Lamarca & Tibz) - Par Ariol, Ramono et Patouche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32327325e13dca566de22cb72797b269247489b4d2ce3932a5d9c0965a9a924. 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/FRZ082300542.
Chat Méchant (feat. Laurent Lamarca & Jérémy Frérot) - Par Ariol, Tiburge, Bisbille, Naphtaline, Vanesse, Patouche et Pouyastruc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6123f0a7b1435ba711debc729509d4db4ddc61564da99556224707c217ac988d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ082300543.
Love Every Baudet (feat. Laurent Lamarca & Ben Mazué) - Par Ariol et Avoine Picotin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9a7ccada58d3569662f488b3bec49e6f0447388bd60e095ee677125babba1c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ082300544.
Laisse moi raconter (feat. Laurent Lamarca & Joyce Jonathan) - Par Ariol et Naphtaline
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6135b68ec50442150e58e706c843a6e5b2975a27e5334a638fcc71949ce3c2a3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ082300545.
Les ricochets (feat. Laurent Lamarca & Tibz) - Par Ariol et Ramono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eaf1d298a2f4f7f310a0a9c34f691b4aae3c8250ac422fbdbb2fbec44d22a0. 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/FRZ082300546.
Sois Coucoule! (feat. Laurent Lamarca) - Par Ariol, Ramono, Bitonio, Pétula et Patouche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe821f62d86e0b9682216d8208092b7cc1a04e18af6d91aa884499b566a1d538f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ082300547.
Autocar, arrête ton char (feat. Laurent Lamarca) - Par Ariol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c80dec8f072b07d0ff10b5175ba8b371b3e6fde67276c27bfdc7fbd26fa522. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRZ082300548.