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 0xb1e150e8ed5d507f860ddfa6bba9680f9c43b3ec329029016001404cc58d8507. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e3c0f8b-5b1b-472a-8f12-02de791a51c4.json and https://artists.proofprofile.net/proofs/artist/4e3c0f8b-5b1b-472a-8f12-02de791a51c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Concert royal de la Nuit, Première Veille, la Nuit: "Languissante clarté, cachez-vous dessous l'onde" (la Nuit)
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 0x366dd69a9cacbc275ee3f89fb2918949f8640ec6a52aa7e781e86284774fef69. 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/FRZ141504020.
Le Concert royal de la Nuit, Première Veille, la Nuit: Entrée pour les Quatre heures - 2e air pour les mesmes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590937857c26d38758c098b4a6cb683664679e8e818cc29bedc782f64fa37545. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141504060.
Le Concert royal de la Nuit, Première Veille, la Nuit: Deux Galands & deux Coquettes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492980a8c5116bd2235dafa34d5da77c2dca8797d194d6b9fa4241b0fcee0f1d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141504100.
Le Concert royal de la Nuit, Première Veille, la Nuit: La Cour des Miracles. Egyptiens et Egyptiennes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dccd836f2cd2514895df7637d94d9da3735a097ca45513d5635d87c68531d5e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141504120.
Le Concert royal de la Nuit, Troisième Veille, Hercule amoureux: "Dormi, dormi, o Sonno, dormi" (Aure, Ruscelli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f12d287145b337d1e7955a052c50de91b5ba71e6437cdf2f1c7a0e25a567267. 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/FRZ141505120.
Le Concert royal de la Nuit, Quatrième Veille, Orphée: Dialogue du Sommeil & du Silence (JC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48378d5cefde95eed1623b20ea73f337b58fe91da830c9b1327ad725337a0ff. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141505150.
Le Concert royal de la Nuit, Seconde Veille, Vénus & les Grâces: La comédie muette d'Amphitrion, Quatre petites Espagnolles et un Espagnol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4bf0df490a909104f89df69aa60fd950110e2e555fce8ecf9c7fd7d4e8621d. 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/FRZ141504240.
Le Concert royal de la Nuit, Troisième Veille, Hercule amoureux: "Moy dont les froideurs sont cognuës" (la Lune)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc48ec92f043206ac18d7f540cd22c3fdc030aff394ff7c06bc305341e18c1e. 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/FRZ141504280.
Zelenka: Missa Divi Xaverii, ZWV 12 & Litaniae de Sancto Xaverio, ZWV 156
Missa Divi Xaverii, ZWV 12: Kyrie eleison I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad1a3702b846ebe5d304ae8ce91d4f844aa9d613f089c8acadaa2bd8ff8ba88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DECP61409001.
Missa Divi Xaverii, ZWV 12: Christe eleison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fb7f1d6f54a9009324c0486571657f9075ea4f45aba8f91caed6d894a1328a. 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/DECP61409002.
Missa Divi Xaverii, ZWV 12: Kyrie eleison II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04c8e01a0db1c37bd332c0b6e5c47d1ee0379638e57fe290f4102daa47c5c9f. 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/DECP61409003.
Missa Divi Xaverii, ZWV 12: Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa267f68745a1a485de19f5b945ed303bb9aad6321859305e333ab74565900525. 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/DECP61409004.
Missa Divi Xaverii, ZWV 12: Domine Deus II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff3194fc7cfeaa32ab7b6f7c288ca11d117567f7b9b0249e2174a4e7267f791. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DECP61409006.
Missa Divi Xaverii, ZWV 12: Qui tollis I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d9e0c5eb45b811e5e94339efbc2265c4895a58a2f716d3ca200d64849f0b83. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DECP61409007.
Missa Divi Xaverii, ZWV 12: Qui tollis II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58616e697840a9680fdbff29b57a066a578fc95223a4ba6c7c39e431bb7dbfc9. 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/DECP61409008.
Missa Divi Xaverii, ZWV 12: Quoniam tu solus sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32d1eceecf87fdd12c98c74a5221256a2b565aa7a6ee8f7b5ea801dff5f9e98. 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/DECP61409010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e0eb577e0afbbd2b27e7a8977d37e83545914cc00a70570f8668a10c9d6786. 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/DECP61409013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e15a0af9fed245ecbd290dc9961222da1119ddaa1e9dccb6955e4851313834e. 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/DECP61409014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f89e493f81ddbb76898a1f17291b440c124a6a34c20a7df92de73a6677c12cd. 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/DECP61409015.
Missa Divi Xaverii, ZWV 12: Agnus Dei II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a336e93d73c62b80209cadc500603ec505891ea525386d7627707b5bb2d1ca1. 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/DECP61409016.
Litaniae de Sancto Xaverio, ZWV 156: Pater de coelis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a59195151134472a6f4cba9153c5efa74c505f602fbd270a9593da7013ad9a2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DECP61409019.
Litaniae de Sancto Xaverio, ZWV 156: Tuba resonans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84ea3ace5403c0abdae6ead7d427b88fa025dc76a54bf653b385dc1f794fe71. 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/DECP61409022.
Litaniae de Sancto Xaverio, ZWV 156: Pauperrime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc291ed00005a02caa0cc3468dda8976a616d2a100515a0a829b9527acb27b329. 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/DECP61409026.
Litaniae de Sancto Xaverio, ZWV 156: Animarum et divini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a096c68a82f66fb3d6aa1d4271f4f6156d30a255114f81770d91dcf5f63aa. 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/DECP61409027.
Litaniae de Sancto Xaverio, ZWV 156: In quo uno omnium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cbb4e8aeeb45408a1641d6dfeedd6e64d5c7f22a9021d5688525698d13fe1d. 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/DECP61409028.
Litaniae de Sancto Xaverio, ZWV 156: Sancte Francisce II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2529dd5990701cb72ab5a0721cae401e0f679c5df43aed07eb00feace2960edc. 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/DECP61409029.
Litaniae de Sancto Xaverio, ZWV 156: Agnus Dei I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5ad7fb6ccec20c69a51f7fce188853384eea29dd95f3fe9619f040fb5368c7. 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/DECP61409030.
Litaniae de Sancto Xaverio, ZWV 156: Miserere nobis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b85ec855e29e9791fdc62eea0db1efdc2154a88a1f257ca9d3e539d578da28. 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/DECP61409032.