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 0xf08b9a4c9bf75104ad897550c83b6c50f0269946798916176e6c5532025484ba. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/824cedb1-ced0-4e37-aa9d-668943a2dd1e.json and https://artists.proofprofile.net/proofs/artist/824cedb1-ced0-4e37-aa9d-668943a2dd1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ravel: L'enfant et les sortilèges, M. 71 & Ma mère l'oye, M. 62
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: J'ai pas envie de faire ma page (L'enfant)
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 0x63903007b6506a0d1522df1bc2fc06d6a7489a6d0db37cbe848399c76a56d480. 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/HKI191508401.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Bebe a ete sage? (Mama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218fa9c24643c7a35a6734d0070241107ab5cbb798c9a2e96da28b050e0b15be. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508402.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Votre serviteur, humble Bergere (The Armchair, The Bergere)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff023ef1ce532d264743ab2d58c7086611241e5ea8bc61a7c7197237a506b6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKI191508404.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Ding, ding, ding, ding (The Clock, L'enfant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f41fbf3493f3aab3bab7814bc2f8fec9e234bb4af3a84e9c0a09e53aa844b52. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/HKI191508405.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: How's your mug? (The Tea Pot, The Chinese Cup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff14b4f21550b9065a022888c913ad3860a3cf6b145cbb319facbcbca1a6ed2. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/HKI191508406.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Arriere! Je rechauffe les bons (The Fire, L'enfant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea6ecac61846041359849d7f36165a621ea55e9beed266ecf6e8e9991ed0b02. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508409.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Adieu, pastourelles (The Shepherds, The Shepherdesses, A Shepherd, A Shepherdess)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe615f1639e440178999ad8b744ddc3d0e116eb618374851a63855039ae37c21. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/HKI191508410.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Toi, le coeur de la rose (L'enfant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50a65776495df57ec8918cb2ac8d3d47c519b8fa9d80067345717677b560c3e. 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/HKI191508412.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Oh! Ma tete! Ma tete! (L'enfant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba7307747e2e196bd2b965482ce49cd98116216a39be301a8cc57c1f5c8e65. 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/HKI191508414.
L'enfant et les sortilèges, M. 71, Pt. 2: Part II: Music of insects, of frogs, of toads, … (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4566d13e63faef168dbd237966b74e58035b2cda10400a4a93dfb662c70a23e. 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/HKI191508416.
L'enfant et les sortilèges, M. 71, Pt. 2: Part II: La cage, c'etait pour mieux voir ta prestesse (L'enfant, The Squirrel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3a55a67f276933b37b3d10ce1144e898c6e4075d5c3f86825a0db60dee94e3. 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/HKI191508422.
L'enfant et les sortilèges, M. 71, Pt. 2: Part II: Ah! C'est l'enfant au couteau! (The Beasts, The Trees)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3657c13134f5f39d4ddcc556628c8ad5dc0df5d6e1c37b82d686348a3fcebb9a. 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/HKI191508423.
L'enfant et les sortilèges, M. 71, Pt. 2: Part II: Il est bon, l'enfant, il est sage (The Beasts, L'enfant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f97d5339b05ca5b2a16b69399a04eccce2216970a7356c4b35cb37152a6553. 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/HKI191508425.
Ma mère l'oye, M. 62: Tableau I: Danse du Rouet et Scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c3ae28f3483ae0597a0c863a6bf04560aba8b39fd81839aca0ce18e421a54d. 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/HKI191508427.
Ma mère l'oye, M. 62: Tableau II: Pavane de la Belle au bois dormant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47d729e0d13d77a6777a44bfab9237252a1b8a7da60afc9e10e1ba4906748a8. 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/HKI191508428.
Ma mère l'oye, M. 62: Tableau VI: Le jardin feerique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d31da341b3bdc8373f98f19cc0c42cd8bc0f86b902e430173d4f59ad80a69e. 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/HKI191508432.
L'enfant et les sortilèges, M. 71, Pt. 1: Part I: Musical duet of mewings (The Black Cat, The White Cat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf641f54408a50f0170ef1c52f302cf949b208b8185570fe5c1766d7409c659d. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/HKI191508415.
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
Offenbach: Pomme d'api & Trafalgar (Sur un volcan)
L'enfant et les sortilèges, M. 71: No. 5, Ding, ding, ding, ding
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfe8210ee1975245693fb9c3cf93494189b1c46531f6d52517ae90710f1cdbb. 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/FR10S1706500.
L'enfant et les sortilèges, M. 71: No. 6, How's your mug ?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ce1436e1108179dbc8991ccf2f1de2f891c662e3773fab767fb2f00d9e356. 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/FR10S1706501.
L'enfant et les sortilèges, M. 71: No. 12, Ah ! c'est Elle, c'est Elle !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52ce66c1240dff414524675cb79b98eb038947da098006b127ab02d52588303. 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/FR10S1706507.
L'enfant et les sortilèges, M. 71: No. 17, Millimètre, Centimètre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763bac52a9a896633bb4397a017daae422baabf1ce6c9da8e2720c4b6f2f4457. 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/FR10S1706512.
L'enfant et les sortilèges, M. 71: No. 19, Môrnâounâou, Moâou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda707921b12839ff4c34cc30b824d15beea5a8d133e885d6da923ee310b12e5c. 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/FR10S1706514.
L'enfant et les sortilèges, M. 71: No. 20, Ké ké ké ké crôac
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c074f663f69aa4e286cda7b20b791b9ace6bd9670074474beac932c33aad30. 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/FR10S1706515.
L'enfant et les sortilèges, M. 71: No. 30, Il est bon l'Enfant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ee1951461b832327f7484ae6666998d1921f8bfc94d03b21b1f0a293a1234. 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/FR10S1706525.
L'enfant et les sortilèges, M. 71: No. 3, Ça m'est égal !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69996da37f827a81fbde2247c5c527248ae353199a9313476374be1b2bdece88. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1706498.
L'enfant et les sortilèges, M. 71: No. 18, Oh ! Ma tête !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915bb4a45df80d76210cab9991627e876ea6223cbe60b83256e4b49901250769. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR10S1706513.
Honegger & Ibert: L'Aiglon (Live In Montreal / 2015)