thumb|right|Cardenal in manuscript BnF fr. 12473 Peire Cardenal (or Cardinal)His name is spelled Pèire in modern Occitan. (c. 1180 – c. 1278)The estimated dates of his life come from Lavaud. was a tro
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 0xfa2c44a18ee34f72d405bbb205d4b3b149d5f9c235410904a4f35a4a2b5bf40d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75efc274-ac7b-4fb5-b462-e7944551e0ea.json and https://artists.proofprofile.net/proofs/artist/75efc274-ac7b-4fb5-b462-e7944551e0ea.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 0x18e1d4e77aefa46ea0ccce8dc5f9a08a6e63d39a878c10ba0706c537a297d0b8. 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/GBAJU8300027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5856a98cc0bc6d2a0f5b64fb6bef780ac9f1f822e9ea764ed90e555744664c18. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBAJU8300029 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6381c16cf20964538a8bb1ca8e39689aaff8832d1d545f822e84a8fa25827e7b. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GBAJU8300032 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9146d70cc79f2b2c72c138d96ad94b30c7676d8722fa3e618f37b51f1e8c6352. 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/GBAJU8300037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c4fa18ef4194642b3e1e814ffce22e3a7c780c34da4dcac999d647206b4f3b. 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/GBAJU8300038 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbdf1aa7986bb07e25c207fccea0aa82456fe93789ac952be6318b6bf5ba4a9. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBAJU8300043 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b84b5196ec64cdbb160505db26b3751b0eda45c2d8862b98fba450bb62f00f. 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/GBAJU8300045 — a six-check JSON result.
My Vielle and the Rest (12th and 13th Century Medieval Music)
Si ai perdut mon saber, Ponç d'Ortafà (I Neither Live Nor Die)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa7351e3cab2e12555321e0c00827c3b753a5f2c5a37b31887cc594bc06d72b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZNWX2216436 — a six-check JSON result.
Caritas abundat in omnia, Hildegard von Bingen (From The Lowest Depths To The Highest Stars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ae7b2b3d012d639c69d3a8cbbd2d29a4ffeed56125d096afe41a72bf60824d. 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/QZNWX2216437 — a six-check JSON result.
Aissi quon es sobronada (The Chosen Flower)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51347884e86a29cdfe3a5132e0a6b2236df6289b2b457d873a12f78df9cfd489. 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/QZNWX2216438 — a six-check JSON result.
Lo iens cors onratz, Gaucélm Faiditz (Of Great Beauties)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f736e6c99241f45a249b126da1edfa55a5972aa21e62011be2b2b6d59e71f0. 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/QZNWX2216439 — a six-check JSON result.
Amours qui biens ses enchanter (And You Will Enchant The Enchanter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ef72aad0a5f3ba8216dee73ac8f16ab9d4484205caf23c39a64d4a93cbccb. 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/QZNWX2216440 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd5e4fcb7545a7caf2aadd00ca5b581eff3e856b372b7eeb6341eade6481bbe. 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/QZNWX2216441 — a six-check JSON result.
A chantar mes al cor que no deurie (For There Is Reason To My Pain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e27c268ea364bc19d7c0762d804b7af9ccbdd6eaf951d3960e765c0c15b93c. 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/QZNWX2216442 — a six-check JSON result.
Dregz de natura comanda (But Roots Is What One Keeps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc42b37327f0baadc0be5eb45be7c8f3060c2ec8ee3b31a8e89f114ccbfbdd55. 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/QZNWX2216443 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103cd22aa95095750999536be92a2dc023310c5f9662b8bcab324f6f6d5d734. 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/QZNWX2216444 — a six-check JSON result.
Mout m’abelist quant je voi revenir (When Winter Returns)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf565f0573260a220cdeece5f20639a3a151281be44aa3250963da13108eb657d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZNWX2216445 — a six-check JSON result.
Volez vous que je vous chant (In The Shade Of An Olive Tree)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d616d552aaa2b4922d123685b5da03be60ba489bbbf9a9404a2b68a60792a75. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2216446 — a six-check JSON result.
Un sirventes novel vueill comenzar (I Have in You My Good Hope)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51223997c03e315ba923668b0035a94418508118fb8f207801ed4cc579f483d. 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/QZNWX2216447 — a six-check JSON result.
Efforcier m’estuet ma voiz (Hoist The Gall From Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dccb9d81ab0b7cb3cfed91431d5a37722894e88b48b05cc6916b620680f50b9. 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/QZNWX2216448 — a six-check JSON result.
Edi beo thu hevene quene (Blossom Sprung From A Single Root)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67cdb257a2e41d66ddf194193bbd60374b322f02493e54e7f1ffd53d5e618da. 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/QZNWX2216449 — a six-check JSON result.
De la gensor qu’om vej’ al meu semblan (I'll Go Far Away If My Heart Wants To Follow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142351df90a2770c764410b33606df1f583246fd4c0734348e98aa1f4da6edc2. 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/QZNWX2216450 — a six-check JSON result.
Bonus Track: Propiñan de melyor (Cancionero de la Colombina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df5f3867223d87111aaea1f8296378495654d6c9ee8fb26fc542c056334a66. 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/QZNWX2216451 — a six-check JSON result.
Roman de Fauvel (attr. Gervais du Bus) (2000 Digital Remaster), Les noces de l'âne Fourbe à Paris, avec la passion de la vaine gloire: 16. Danse royale (instrumental)
Jean Bollery/Studio der Frühen Musik/Thomas Binkley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabef3f602216e4b98ca6288fd9d0e9095ba7af11c2775084884f1958882f9fb8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEA340000992 — a six-check JSON result.
Michel Piguet/Ricercare-Ensemblefür Alte Music Zürich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63451ab29d889c6149f04c1f5d3f478c7ab616f8509d800775b8a52a8356e24c. 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/DEA340001145 — a six-check JSON result.
O quanta qualia (hymnus) - 2000 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40a26e1c892ecd395c038dc9e5e0e554164e0f0f8d7703a9b6c59c2899854a3. 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/DEA340001346 — a six-check JSON result.
Non Perch' i' speri, donna (ballata) - 2000 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42315668dfae6944703c370a7e145e78efe0d22a2db55716d2cb1f4e0ee57a1. 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/DEA340001146 — a six-check JSON result.
Condesa de Dia: Ab joi et ab joven m'apais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3dcd8577fd2f8272d79ebc4864df092c1de1e4738cb5872ddf2c10e982c608. 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/DEA340001590 — a six-check JSON result.
L'agonie du Languedoc - Razos es qu'ieu m'esbaudei - 2000 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4d17e57f086a91372de2f7c2bb9c3d527e798a0ad241173756d8c12a8f7cd5. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/DEA340001471 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba1f4f56d91cb81804d479ba9ce8a3c9f05c8fb89ce899c463974b12e8d44cb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBAYD9200594 — a six-check JSON result.
Indescort, diminution sur la chanson "A discort son Desir et Esperance"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82657317c215b13108bed31b4c4b59873a573d2d69215ca03d10b038c7f76135. 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/GBAYC9901178 — a six-check JSON result.
Messe de la Nativité: Trope: Gaudeamus hodie - Introït Puer natus est nobis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd97a1df502e80ae07bbd8c661f41223765cf756d0140c026f3e348935d5e29. 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/GBAYC9400611 — a six-check JSON result.
Messe de la Nativité: Antienne Ecce annuntio vobis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ab39c945bc0dfa6ff1302188bafcece56822ffcd9fddab02f04ab1f988c8a3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC9400613 — a six-check JSON result.
Messe de la Nativité: Trope: Qui es sine principio - Offertoire Tui sunt celi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86ad5d83599da3de4199e2ac846d4c61c4c29c3383958f4f81873135bd75319. 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/GBAYC9400614 — a six-check JSON result.
Estampie - Istanpitta (2000 Digital Remaster): Istanpitta Gaetta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc591278c6a88c8565eea0dc77b130941a809e60eb50181ad8ab1842408dcf408. 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/DEA340001363 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa687cd3f02bf64655274224973cca271d3f598d55cd06d2c9aaecfa82c577b83. 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/GBAAA9901598 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85509ea7b77270ee3bbb8143576f0ae6700016dab482e72d22d95eadcdc479d. 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/DEA340001148 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2195c477e6d2d61a412751927ed25aa9ef1d0e4f10598ff0debac4b3a7d568. 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/GBAYD9800515 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0974743c7187af4118bc614e07e5cce57a64c72cfef1c5265d57eba881b00f. 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/GBAYC9101447 — a six-check JSON result.
Purple Classics Presents: Unicorns & Castles – Medieval & Renaissance Music
GBL Add. MS 29987: No. 91, Lamento di Tristano - La rotta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541116469248753030e730d929a99b0926741c6d405538839c3487eec368939f. 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/USB8U1611246 — a six-check JSON result.
Tan m'abelis jois et amors e chans: Tant m'abelis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74654d5b81d8a8cd343bef35b937ea27afe21f0e393466657968bd350a4f167a. 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/HKI199703301 — a six-check JSON result.
Domna, pos vos ay chausida (Instrumental)
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Non puesc sofrir (Bornelh) - Contrafactum: Ar me puesc (Cardenal)
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Humils, forfaitz, repres e penedens: Humils forfaitz
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Early Music Recordings of Ensemble Unicorn, Vol. 1
Moyen-âge, chants et musiques du XIIIe (Medieval Music & Songs - Trouvères Et Troubadours Du Xiiie Siècle)
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Presidents in thronis - De Roman de Fauvelle
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Lo gai saber. Troubadours and Minstrels, 1100-1300
Be'm degra de chantar tener (Sur la mélodie de "Quan vei la lauzeta mover")
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Musiques a la cour d'Aliénor d'Aquitaine
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