Akira Tachikawa (, 1961ｰ) is a Japanese countertenor, described as "one of a very few accomplished Japanese counter-tenors". A 1980 graduate of the Tokyo National University of Fine Arts and Music, i
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 0x635d2c494e25d4a99e9f7388f90aacb2170cd1d743652e86d925ea1eaac15377. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5210b45-5557-4840-a2c5-6db1bbefb559.json and https://artists.proofprofile.net/proofs/artist/c5210b45-5557-4840-a2c5-6db1bbefb559.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Messe de Nostre Dame: Introitus. Gaudeamus omnes in domino
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 0x880c164927817a1a4acd9c7ea1aea1ca03c14d6d226d60a1afe8ab8e8604db00. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111846 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c66bbcc1d378a4b2f4f5b689a2f9314dfffc9ed94d55b23077d230ab2328376. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111847 — a six-check JSON result.
Messe de Nostre Dame: Gloria in excelsis deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65eac926e4460ee3d441684116ff8d3906589b6561ce4d6a17df3e53a0532185. 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/NLY331111848 — a six-check JSON result.
Messe de Nostre Dame: Collectio. Veneranda nobis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb98e3f1c047a02a23a8495a8d7c0661436df523de81693d546855eb3f45ccb1. 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/NLY331111849 — a six-check JSON result.
Messe de Nostre Dame: Epistulum. Lectio libri sapientiae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7a29b2bba5f53c4540819c8cd0959658cb08cfd8b1a253149064b05abdb589. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NLY331111850 — a six-check JSON result.
Messe de Nostre Dame: Graduale. Propter veritatem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79cb1479c5a3abb183fa72884347b78c5cfc662248c8d884af6648c2233db15. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLY331111851 — a six-check JSON result.
Messe de Nostre Dame: Alleluia, assumpta est Maria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3ecb7572d53229a8aa284ead2d52b47130afec4bda295038f05091677a4ff9. 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/NLY331111852 — a six-check JSON result.
Messe de Nostre Dame: Evangelium. In illo tempore intravit Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd9f5f356dfaa5e5a41806717722c49e7333349364981535888e713e50dddc. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY331111853 — a six-check JSON result.
Messe de Nostre Dame: Credo in unum deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9177dc47ce58ac72eedd845725f9ee4510a5cae68fc26d14b12d2c74f01ce3. 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/NLY331111854 — a six-check JSON result.
Messe de Nostre Dame: Offertorium. Diffusa est gratia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cf1ee83e919731b148ef7fd37e5e3559aecb707426ce3d0bac2936d84ec7da. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLY331111855 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247e15a6c840e4de4d71375bbe2e2007bf9266854f589204526b17a9d7bf8943. 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/NLY331111856 — a six-check JSON result.
Messe de Nostre Dame: Sanctus & benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd23de357ea0b00d3eb1765a9bf77e50342db7d9b6251d2df093c3ab6ba32dd7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111857 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4b6c8fc57bb23c23863c5dd87ffca136462bdd2430f7a5d205c3df1044bc9a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLY331111858 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714f7f47d0c255a75be0564cc15c8a23e9833a1bf82aa4371f4f3f84b270373a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111859 — a six-check JSON result.
Messe de Nostre Dame: Communio. Regina mundi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6df0f7a16062bee003de60da4575e9bf0325d5f9491228c152399e409b82219. 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/NLY331111860 — a six-check JSON result.
Messe de Nostre Dame: Postcommunio. Mense celestis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f6f9d8b4bd8964819809fc1718789bc0e94face6e5d31fb2ed26d1568e3981. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111861 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa567444dca38c223041cf51b8412469162c83c64a82c8ec88b8c958b48ab40. 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/NLY331111862 — a six-check JSON result.
Le vray remède d'amour: "Je, Guillaumes" from Le Jugement du Roi de Navarre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d27dcdfb67f7747ecf73c392fba7eb3db574b815e9fc4fa7b72623b972f8c3. 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/NLY331111863 — a six-check JSON result.
Le vray remède d'amour: Virelai "Dame, vostre doulz viaire"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653506e5786937670f747851ad2eb9fbb729eed22f011521279037e3551408cb. 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/NLY331111864 — a six-check JSON result.
Le vray remède d'amour: Motet "Amours qui ha le pouoir/Faus samblant"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d32da32c6c4fda0fd75e09df78b9ca48339c73cd443860e76a9f15570eb307. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLY331111865 — a six-check JSON result.
Le vray remède d'amour: Virelai "Je vivroie liement"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc15158ebca45b45fc40efb3d03fa32d6ddb47c458183255cab7fdfce402cefe. 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/NLY331111866 — a six-check JSON result.
Le vray remède d'amour: Rondeau "Ce qui soustient moy"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054202c083d8774784294b4e8079b08795631c925ca3652a8ed4a08427d464fb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLY331111867 — a six-check JSON result.
Le vray remède d'amour: "La, firent mains divers acors" from Le Remède de Fortune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c6ad979cec872f410a5469e7f5e6ca3cbb0725de3061a8626468665f4297d6. 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/NLY331111868 — a six-check JSON result.
Le vray remède d'amour: Ballade "Dame se vous m'estes lonteinne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363f68fa7763278c910d99f4c80100319f32ea5fcd41a1a4537920f32735533f. 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/NLY331111869 — a six-check JSON result.
Le vray remède d'amour: Ballade "Je ne cuit pas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfd35dba8b1b536b3f965c444c26b7ba903ad87933e88a81987288842964766. 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/NLY331111870 — a six-check JSON result.
Le vray remède d'amour: Rondeau "Doulz viaire gracieus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bc74edf8ada89f2ce74d0e87a653b35f8c75953e1cf1a8b67269bdfd33db03. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/NLY331111871 — a six-check JSON result.
Le vray remède d'amour: Motet "Christe, qui lux est/Veni creator spiritus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f41d80baa46979677ea6419f926124a0d8921f8db0c747a25a15a608690c97c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLY331111872 — a six-check JSON result.
Le vray remède d'amour: Rondeau "Puisqu'en oubli"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53b45cfe1ad4f43eeaaa97eb011c4ad757e4119dda34e84b91c794139463976. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111874 — a six-check JSON result.
Le vray remède d'amour: Ballade "Dame ne regardes pas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f976e9e4a5ec6f7cd768b0a292cc5fe19046ec5a28b2ffe7089b639d215c64. 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/NLY331111875 — a six-check JSON result.
Le vray remède d'amour: Ballade "Doulz amis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284fab16c64d8227221f5b2b501714a9051a4716bc49d4cc2437b4ff67abd447. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLY331111876 — a six-check JSON result.
Le vray remède d'amour: "Long sont Mi jour" from Le Livre du Voir-Dit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232912361c134be2a14c063705ddde8cfd93fab7fb6979cb982d40902b1958d7. 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/NLY331111877 — a six-check JSON result.
Le vray remède d'amour: Complainte "Tels rit au main"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca27cef415c6a055d3eb86607d37b9c39570a216cf7bc774f7aee83f7df4c6c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLY331111878 — a six-check JSON result.
Le vray remède d'amour: Virelai "Liement me deport"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7d3487fcf622023b331ff9a2ee27c2cb1187a41dd3d5b6a1c1d349c5261415. 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/NLY331111879 — a six-check JSON result.
Le vray remède d'amour: "Des que on porroit" from Le Livre du Voir-Dit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa928d25e43278142ad9603a059c2ea41d59507c286d37303a9fb820ff31a7d51. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NLY331111880 — a six-check JSON result.
Le vray remède d'amour: Ballade "De toutes flours"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93676f6c7de135584cee99eacbd0bdd6519f1778dc2e4155cf53c293680e6d02. 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/NLY331111881 — a six-check JSON result.
Le vray remède d'amour: Motet "Felix virgo" - "Inviolata genitrix"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1083cf4a117e295269156867605d9e9ac009afd5ed01de47daa012c25d15f1c. 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/NLY331111883 — a six-check JSON result.
Le Jugement du Roi de Navarre: Chanson roial "Joie, plaisance et douce nourriture"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536193978276a768aaf455f5af5c20f82491274857295463b087569f753f200d. 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/NLY331111884 — a six-check JSON result.
Le Jugement du Roi de Navarre: Ballade "Tres douce dame que j'aour"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5343c53599e8165601182c45f9d32ef064ae544622c2e127d8683e88f07c2933. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111885 — a six-check JSON result.
Le Jugement du Roi de Navarre: Motet "Plange regni/Tu qui gregem tuum ducis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed86038a99c724541012fccdc2cc3b8a0fabdd301c454b10f75860ea51751897. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLY331111887 — a six-check JSON result.
Le Jugement du Roi de Navarre: Motet "O livoris feritas/Fons totuis superbie"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835bd7f6bcc5a7a8318e07846fd0170e8d11ecb68dd4b12e03d5f6009995476a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331111889 — a six-check JSON result.
Le Jugement du Roi de Navarre: Virelai "Puis que Ma dolour"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe983182963a3839e7d433fec54d96d945a126fe695b827007583460b926f454. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NLY331111891 — a six-check JSON result.
Le Jugement du Roi de Navarre: Virelai "J'aim sans penser"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6150dc40aa444f3767e9802749b00b74abf47cbf3a95d15332d7374b1a014945. 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/NLY331111895 — a six-check JSON result.
Christ lag in Todes Banden, BWV 4: Duet. Den Tod niemand zwingen kunnt (Soprano, Alto)
Bach, J.S.: Cantatas, Vol. 1 - Bwv 4, 150, 196
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d00f77cd3c58b1621ec1868eccba3f394baa5a947391487c88c1c11849b1f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9551030 — a six-check JSON result.
Christ lag in Todes Banden, BWV 4: Duet. So feiern wir das hohe Fest (Soprano, Tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c44c7c0fb0bd4acc12036f96093d72023a6fac5c567f9a6726d31fa0e7ec365. 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/SEAEH9551070 — a six-check JSON result.
Nach dir, Herr, verlanget mich, BWV 150: Aria (Terzet): Zedern mussen von den Winden [Alto, Tenor, Bass]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b930fc8d79be9a36c4290712a2d5797c577b37796a974e0b09df531e266faea. 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/SEAEH9551130 — a six-check JSON result.
Magnificat in C Major: I. Magnificat anima mea Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa590f15784e06f2a3c55d9a6d69e5470fd5ef9a8871e077255ce165b162c4028. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/SEAEK9811010 — a six-check JSON result.
Magnificat in C Major: II. Et exultavit spiritus meus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5362b8311a51d0b130106873d0c7f7834984d7f4b8ced7a8f6e3553cd1f6b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEK9811020 — a six-check JSON result.
Magnificat in C Major: III. Quia respexit humilitatem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ed8f2b035a7deb302fb1cc69a02a5a9eaaf0a34942178ef34dc23a50101edc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEK9811030 — a six-check JSON result.
Magnificat in C Major: IV. Quia fecit mihi magna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cdd34a43317f326e8a9fab2c7f63dd350607997e5ff0544e06274e172c11cc. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEK9811040 — a six-check JSON result.
Magnificat in C Major: V. Et misericordia eius
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e988286ee498fb2de595fe28b735fcda4579077a53f393d70199b77db78e86c. 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/SEAEK9811050 — a six-check JSON result.
Magnificat in C Major: VI. Fecit potentiam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3d88da4b8cf3fac25b32baba40d0c38e90bb465b67787ab5feeea9e7cb413d. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/SEAEK9811060 — a six-check JSON result.
Magnificat in C Major: VII. Deposuit potentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c48c62745ba118f51a5570cb6414f865243f468e597fb8931c201f4e2790ade. 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/SEAEK9811070 — a six-check JSON result.
Magnificat in C Major: VIII. Esurientes implevit bonis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f03b87ec001c84610137c5532259da6e5aa91d935cc0ee7271ebf0a0dc1f2a. 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/SEAEK9811080 — a six-check JSON result.
Magnificat in C Major: X. Sicut locutus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9395b5d0e8ec4f1ad582078854d9aebeda687eb461be673ef827d71e0677879e. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/SEAEK9811100 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a47d37bb61e5cb74ba9b123ce21091607059cf0f58eeb967a2a72ac96b0c8f. 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/SEAEK9811110 — a six-check JSON result.
Magnificat in C Major: XII. Sicut erat in principio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902df1057f497ef87e47b4a3db278436586199a48f123ac5e9741a5b587474d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEAEK9811120 — a six-check JSON result.
Magnificat in C Major, ZWV 107: I. Magnificat anima mea Dominum (Tutti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5198853ee18b2fb336f3ebc2d4fb0ad6b66f6e919d99245df96df438d03787f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEK9811130 — a six-check JSON result.
Magnificat in C Major, ZWV 107: II. Esurientes implevit bonis (Solo soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6ea4e30aa197030f6d74d0393c48146494f0db9287d235cc2800d1e47b4611. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEK9811140 — a six-check JSON result.