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 0xbd0951596f42d3d86fa1c1be953ef038f8c6bd339aacd6d6c98b2b87ba462d42. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3efbf66e-1938-405c-925a-8a7e2488d74e.json and https://artists.proofprofile.net/proofs/artist/3efbf66e-1938-405c-925a-8a7e2488d74e.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 0x1174503ee59f5fe772230e238f8b33dfe434b8c402542915fa3fd36790020e6f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260401 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5358b8dfb7f6f279db66dc791ac1fa803d4be8ccf57eabf8b9ce1b410bc279. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260402 — a six-check JSON result.
Bachianas Brasileiras: No. 5, Aria for Cello and Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58238e2082ac3a5ef784549c534aabe84fd6b68b6570737ce3c924d5bf8f3e47. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260403 — a six-check JSON result.
Sicilienne pour violoncelle baroque et clavecin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd8e52d3ee01511926ee894dac357c97a7574ef70126b46fecfd550c9afa7a9. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/FRU622260404 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d15d0e6a69813d4d68181331a69d59eca858e0d637f5934779eca30b84b494. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260405 — a six-check JSON result.
Sicilienne (Transcribed for Cello & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e87b13805122962a31399133e3bfa11a3ab1f05443dfee5a502d03e00447a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260406 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cd3552549afa16e8ebeadc74a5d27894cff5c25cb304b420d6a3e722b0cf8f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRU622260407 — a six-check JSON result.
Les Folies d'Espagne (Transcribed for Cello & Harpsichord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bcd823167bffe1fe0fdfbfa43f21f95cedd44fa32b59b293a96e94acdab680. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260408 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce1153fa8bdb9643d71f80b808092c5284af4411a0b6c9b38e8c5440795d1cc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260409 — a six-check JSON result.
Détail pour violoncelle baroque et clavecin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ca4df28dc88c7c08701397a02c957cc98a93f447c47a7f932fc9fc555ee02e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260410 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b3d214a93c1bbbf0b416eaf873a1552c25a1acc93718f28ca7975821b9734b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622260411 — a six-check JSON result.
Louis Marchand: Oeuvres pour orgue et clavecin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50992700e24fee96362408d4d25aeeebb79886b26bd47de1521635f76ad3844. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622474001 — a six-check JSON result.
Suite in D (Published in 1699): III. Courante I&II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a55dc86f240ba496a45f86d36b799297e71805c987a57980c6232c22b99664. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRU622474004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8966166f70c079f36d2c43b786dcd156cefc407ec37d14ba1f95d70a734a9c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FRU622474010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452e7ecdfb7b3609c212946c37b1f208c54306c546e2229c100ed383c0fec66c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRU622474014 — a six-check JSON result.
Suite in G, (Published in 1703): II. Allemande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8053370ebb5138972106a53616f0fcd07b2970d28f4c135ebc9c191c2ec09e07. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRU622474016 — a six-check JSON result.
Posthumous Book, Suite in D (1740): Plein-jeu à 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd20bcd8a371340225ec850ade3089c6ad4393257a3aea174c2c266c4422ac73. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622474022 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e481eec362d8d1a30b48bae290d84f7bec94c75dded8a77539cb33bb4104d6c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRU622362401 — a six-check JSON result.
Mélanges à 2, 3, 4 et 5 parties avec la basse continue, Livre 2, RISM A/I/2 D3701: VIII. Allemande pour l'orgue ou le clavecin, et pour trois violes si l'on veut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9536d69ca04b3abcf8e6d810bef3a5cb2a1f7cb08a432f18f40690c27768392d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362402 — a six-check JSON result.
Pièces de viole, Livre 2, Suite No. 2: No. 38, Cloches ou Carillon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070790959331cce722b7f6b4979cb8e09afe1461cbe7c336dd077dfba88b4ac8. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRU622362403 — a six-check JSON result.
Pièces de viole, Livre 2, Suite No. 3: No. 63, Les Voix Humaines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6150867aacc9e6f48389f91da9395a87b8f1cdedfdbb92a54c729d34fb4238. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362404 — a six-check JSON result.
Bauyn Manuscript, F-Pn Rés.Vm7 674–675: Pavanne de Mons. Dumont
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5075e32fc52fe4592045d57e66006e300c21e7b8756e06e54db929ae17885bf4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362405 — a six-check JSON result.
Pièces d'orgue pour le Magnificat: Récit de tierce en taille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3120d965fd51dce814346fd5efb1e17f35753ae7283e29d1fcd5b9e0449a0c5. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FRU622362406 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70791517800212d8a6a5bb35a9bdd92c5bbd5bb26e8bd3c9c6147bef82617e76. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362407 — a six-check JSON result.
Pièces de viole, Livre 3, Suite No. 6: No. 82, Gigue la Chicane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48627d52d1dfaf2b9a926e869b1dc6c7444fefc577c0f98b6dc241dc4394b8a4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362408 — a six-check JSON result.
Pièces de viole, Livre 3, Suite No. 6: No. 86, Plainte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4602920df13a288e928d5e20815270e8a5a8c9afb5182a924372989775b4ab9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362409 — a six-check JSON result.
Pièces de viole, Livre 5, Suite No. 6: No. 83, Chaconne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314ba1095dadb6a304b04dbac65e9443ef42d6a2b9a67672a9fd61b0d31a03e3. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FRU622362410 — a six-check JSON result.
Pièces d'orgue pour le Magnificat: Dialogue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aac8ed3c671dc6042b96ebff51f4bd43e0e595b44c583ef59dc11b95f11035. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362411 — a six-check JSON result.
Pièces de viole, Livre 2, Suite No. 7: No. 116, Pavane selon le goût des anciens compositeurs de luth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ca177feb047705716f1323744d9f495d586329efd454e7fcecfa5202684d7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362412 — a six-check JSON result.
Premier Livre de Pièces d'Orgue, Suite VI: No. 3, Récit de tierce en taille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31618c1889503fa6fb89d0c5a19754333a3748d79c0aeceb969c4ea539d04d75. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRU622362413 — a six-check JSON result.
Motets à deux voix, avec la basse-continue: No. 33, Allemande en tablature d'orgue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b85551c5d85b5c8431eadaa00d1ecdc11fe3ca113d7b4103787fac78f5b831. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FRU622362414 — a six-check JSON result.
Bauyn Manuscript, F-Pn Rés.Vm7 674–675: La Piémontoise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89801a5a3ed129d23f4394ae4f7c30d2657f09e49b03ab6261b958fffd7c743. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362415 — a six-check JSON result.
Pièces de viole, Livre 2, Suite No. 8: No. 131, Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7666c817057ff780646e3848362fd371fbdb7e8ad851f63769b43abbbf686eb7. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FRU622362416 — a six-check JSON result.
Pièces de viole, Livre 5, Suite No. 1: No. 4, La Mariée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfd53172a0d9d6b4c00b39234ddc87f11ab97a2a00860ddd5d22d2c1a5b4402. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362417 — a six-check JSON result.
Pièces de viole, Livre 2, Suite No. 8: No. 142, Fantaisie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bea771e466b6b3a71e5a5bc41fd05b552e44099bf2741b429c2f1b72fbbc27. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362418 — a six-check JSON result.
Pièces choisies pour l'orgue: Récit en Ré Mineur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e3182539fbdfd0587fb3b71c3ae880c7935a89e91294553753da1dd26dedd1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362419 — a six-check JSON result.
Livre d'Orgue contenant une Suite du Premier Ton: No. 5, Basse de trompette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28185060bfa700478c263a4137aa4f1297f8647bfbaa224ef210019b7352b68e. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FRU622362420 — a six-check JSON result.
Bauyn Manuscript, F-Pn Rés.Vm7 674–675: Sarabande de Mons. Couperin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2a9f39019e10e761ac9a474bfdc4bc354ee4491b8ac19b7da4bc50a08e7d6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRU622362421 — a six-check JSON result.
Livre d'Orgue contenant une Suite du Premier Ton: No. 1, Plein Jeu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c888bfa373c247eb36b4f853c675f327a8900f2381ad135e0856f4c6472588. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/FRU622362422 — a six-check JSON result.
Marchand: Suite in D (Published in 1699): VI. Chaconne
Marchand: Posthumous Book, 1740, Suite in D: Plein-jeu à 6
Dumont: Bauyn Manuscript: Pavane de Mons. Dumont
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5075e32fc52fe4592045d57e66006e300c21e7b8756e06e54db929ae17885bf4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362405 — a six-check JSON result.
Boyvin: Livre d'orgue II, Ton 8: V. Récit Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e481eec362d8d1a30b48bae290d84f7bec94c75dded8a77539cb33bb4104d6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU622362401 — a six-check JSON result.
Requiem, Op. 48: Pie Jesu - Version pour orgue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4645c6880d90df9f8feff81cd3fa8148270b117fa8987918511aa237a738391e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR00W2200014 — a six-check JSON result.