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 0x5c0280aaedc7674e9a0b1303f8f5de1c70a14cebe8e7d327b8d5868a88a0e608. 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/b7199e81-537d-4047-b428-42facc017191.json and https://artists.proofprofile.net/proofs/artist/b7199e81-537d-4047-b428-42facc017191.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x6f1775a67c4b8e32af1b7f80aa19b715ea83ca6b0f5154470d3e03b361842725. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200147 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dd43059c495da55888dcf0557d352123366037bda0b8a01310a8aa2334ba2e. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200148 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750bf43cc4db49f23d84faf1824faf4eb45f707eb09a7b13d92cd01a54084c92. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200149 — a six-check JSON result.
Le réveil du dragon de glace, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e840d4564b3e3318f3fd9be84fb8e51e1dc0b635a207f765c28e40fef9dda4c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200150 — a six-check JSON result.
Le réveil du dragon de glace, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0236772704dc3b276b235bbcb9d1b35de6008b6ff5d20000e79c0fe4a25281. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200151 — a six-check JSON result.
Le réveil du dragon de glace, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea512812d75d16098c7a871909672dd0b2c23c9f0af73a0b0f71b84d8fe9c03. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200152 — a six-check JSON result.
Une naissance à la ferme, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f5cca96de8238633a94eb1c571dab775ed80b301bdb605b24a999eee081094. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200153 — a six-check JSON result.
Une naissance à la ferme, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4066892018a733a9243d450fb8cc4c0f436d552dd16d5491f58703cc105513. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200154 — a six-check JSON result.
Une naissance à la ferme, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd58983a975946a76d64c8900fdcef9772653745f17f2f1421e7a58eeffc836d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200155 — a six-check JSON result.
Le géant mangeur de nuages, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d11f5e9ca982acc149e9bada7fbced6417079abd32fc98dff3fdc1cb023fb0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200156 — a six-check JSON result.
Le géant mangeur de nuages, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd0c012416682e68b3c17bd6f3320a1192dccdbca0fa47a881a43b30dd8bb27. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200157 — a six-check JSON result.
Le géant mangeur de nuages, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a874daba0a22cea396b1a7e4accb2b86a8a884255d28ea06748a6531ad430c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200158 — a six-check JSON result.
Mystère sur le Tour de France, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490df0c208bfe431b92dccb28d98012394656896ba44d613dc80d66a8034ead9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200159 — a six-check JSON result.
Mystère sur le Tour de France, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d9a850a85cf7f4093ee440c06e0a0fbe67256b66c03e29f1131d6f096edefd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200160 — a six-check JSON result.
Mystère sur le Tour de France, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487baa262d8f537f066e1182e0000044bcfd4ad9fd01c75b7f986f0afc5c57f3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200161 — a six-check JSON result.
Le trésor de la Falaise d'Or, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe344a21c02810e61ead646158ddcd6b8e6d0157600b8a6f06f9ef2151fe9cb5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200162 — a six-check JSON result.
Le trésor de la Falaise d'Or, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1040be26b72f1261d84f5de4e2477952b7e78af369696941de19cca4e51d7f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200163 — a six-check JSON result.
Le trésor de la Falaise d'Or, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca35d3f8fdb869f27ca40a48f31bd8bddd70c4b6eadb122758056c8c383bbd6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200164 — a six-check JSON result.
La brigade des animaux détectives, Pt. 1/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c23914d1739fa9cc6157fc00c22776ebb1389eb8f6fe73c30c8890de86d51e8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200165 — a six-check JSON result.
La brigade des animaux détectives, Pt. 2/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35404ea23fed2539157189f5c325b5d1a668e7d680d8c1aaae81dc1ad9921973. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200166 — a six-check JSON result.
La brigade des animaux détectives, Pt. 3/3 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71306c1319fc9f4949bcd5f0f0859da9a5207afe4f9a5ff76d6d53a7666f7ae0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200167 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a63dad181750baed3a77e301d3e8bd7573bc98710b8036e9224a218284bdb77. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200168 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18f485ce2c911a5454d524e7251d37a895a00761c78e56e918724647daffb2. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482200169 — a six-check JSON result.
Emile et Margot - Ne regardez pas le Pétrifix (Histoires)
Emile et Margot - Ne regardez pas le Pétrifix, Pt. 1/2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016cd48472cc99d0e314747c07f8d3ea726c55e394b1e8a7412a597e6b1c48a6. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482400344 — a six-check JSON result.
Emile et Margot - Ne regardez pas le Pétrifix, Pt. 2/2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a152a81d92c6be235dbdeb0c529deca19fdf72c095693c25c9bd0efe82b5d7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR482400345 — a six-check JSON result.