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 0x3527d94fe70673bd1cf74a0e5b60add70e0edf210ab6dbffd0a2190e79874987. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df045920-c39b-45c3-9983-3b1a908a228b.json and https://artists.proofprofile.net/proofs/artist/df045920-c39b-45c3-9983-3b1a908a228b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Purcell Album – Alfred Deller & Consort
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 0x6c7be0dd7e5c8615b30e63de70d399ee0c5d4e533890e19a0e8e99b06eb67b54. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761940201.
King Arthur, Z.628: Venus's Song: Fairest isle, all isles excelling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ada40fb1efe73b3b5a0199ad7aec5f175df37c4d76a3e72309cf98dd2a571c9. 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/USX761940202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843f71d8e6c03eca575652a926a3d303c3158a0fa9dbe1f9b36704b02ae968f0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761940211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337b0c1034c673325299aad3857c75943f289a7e0f73c3dda558ad17d14c746b. 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/USX761940212.
Dido and Aeneas, Z.626: Thy hand, Belinda - When I am laid in earth - With drooping wings ye Cupids come
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacbaa0621796b69bfaf10c22b186859e5145d47006c88b6f5f54e282fc3262b. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761940214.
Alfred Deller: Madrigals, Complete Deller Vol. 5
Madrigals to Foure Voyces (1594) - XVIII: Ho! Who comes here?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a870224bac4929be682f768948bfe26f9f4e0d6e8cbf8edefc4c862d7958f2. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USX760801418.
Madrigals to 3, 4, 5 voyces (1597) - VI: Cease sorrows now
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc93a262470c516314ce74f2bbaafabe07c0fe1f1fb6a82b4b147f3633f3021. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801419.
Songs of divers Ayres and Natures (1619) - IV: Mother, I will have a husband
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4a1c4f13824deb190b4dcb9ea0644a76efdc58ce7ce0575c82a834816113ca. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801420.
The Mulliner Book - In going to my naked bed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3921fb6a33f66c401f33c7ca1169de59ee43cf323dcbb3a0507721effc56b223. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USX760801421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791bb47b84bcad4d63661e71723b1ea32258d41815004f324052fcfcb3262208. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USX760801362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf051ea3adbf2a5a4175c9ba42c83556373311af86ae8bfafba2804e684e7afa6. 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/USX760801019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef3736a913b471ef9ea85e11822cba8a27d1387fd0b16d27c07b5618daf6f0b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801383.
Alfred Deller: The Complete Vanguard Classics Recordings - Folk Songs And Ballads
Come Ye Sons of Art: I. Symphony: Largo-Allegro-Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f281b45a3468cfa34ae47b5b075522b54b414482ab92defd0ad05d3333c1f8. 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/USAT50425743.
Come Ye Sons of Art: III. Sound the Trumpet (Duet - Two Countertenors)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cbab70ce0f3a3ec6820d8b0f6088d8065d199084c8ed2d566ed0ab97140762. 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/USAT50425745.
Come Ye Sons of Art: IV. Come Ye Sons of Art (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95fc3f78a13d3f8ed9649807cd3fbcb11fc9484bec6c5df19e35a9ad7fae4d7. 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/USAT50425746.
Come Ye Sons of Art: X. Rejoice the Lord Always (The Bell Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd75d2e05dc5bd93e8cc1b5fb18f2807133000d0536006b779ad1b3c2d2ed43. 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/USAT50425752.
Welcome to All the Pleasures: III. Here the Deities Approve (Countertenor Solo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f9c65071fb3456468c0d7ea70d1f45ac47883fbc49d79d6d14f2bf26451d5c. 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/USAT50425763.
Gibbons: Anthems, Madrigals & Fantasies / Morley: Madrigals
English Renaissance and Baroque Music Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8e11d4c8a85ac5131a5af01bf98091146f9ecc0764a6e3dad5099b4894340f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE477800201.
3 tunes new to John Playford's Dancing Master
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7fc0870a2f78ed14b360ddd6380b668811c75101b3012d144e38e403704f7a. 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/DEE479502298.
Macdowell: 2 Piano Concertos & Solo Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aa155db37aea4b57b1eaebcaf73d7e0b10bf0d9a8ddfa5dd6c3266da85a782. 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/USBC10401381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb153b4c11aebbb83da40bb315aee6185d88e7b930488f92b455ccefb9a7868. 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/USBC10400933.
Congaudeant catholici - Music for St. James the Apostle from Codex Calixtinus, Santiago de Compostela, 12th Century
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071315efa277255e7347a9829d34cb358e67e646b4bd054cb4bc0c471c41f8bf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE479200396.
Alfred Deller: French & Italian Discoveries
Nikolaus Harnoncourt & Concentus Musicus Wien: Complete Vanguard and MHS Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165ee092e60b1b3aacd97b82388bc6ad45ad08282742fa5005c49233cc9d0309. 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/USKO11202147.
Sinfonia Iii C Major - I - Allegro Assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402f216e050750595581af8049e5b936d9b2d54c5d7aa6470da274d305f27322. 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/USX760801401.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638: Altri canti di Marte e di sua schiera (sv155) -Part I: Altri canti di Marte e di sua schiera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a7c0bb31e05d341135e140ab71d0a22c588493660ff68c48563830e5f31d9d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801403.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638: Ninfa che scalza il piede e sciolto il crine (sv160) -Part II: Qui deh meco t'arresta, ove di fiori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d07b93f81656b5ed567db03754753fb807cca15c0a014ed44d0d899e5a2906. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USX760801408.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638 -Dolcissimo uscignolo, 'cantato à voce piena, alla francese' (sv161)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe1c3f7bb4b506f8df28a7472c753aa685faebf3b5b50697ff2d17d2589a7b0. 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/USX760801410.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638 -Chi vole aver felice e lieto il core, 'cantato à voce piena, alla francese' (sv162)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59350effd464da5475d758514ce93058cb190433698b0886539162bb84a993b9. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USX760801411.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638: Lamento della Ninfa (sv163) -Part I: Non avea Febo ancora 'rapresentativo'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17605b4b98c1f818ab69e69a18e1357238afafaa708a15abd76470a1ee1fec2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801412.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638: Lamento della Ninfa (sv163) -Part II: 'Amor', dicea, e'l piè
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751ba8d8ea048dc68e385ac762fa47c1b87f3d2b35ee579aba69cb722492d026. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801413.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638: Lamento della Ninfa (sv163) -Part III: Sí tra sdegnosi pianti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc375d2f0198de5ae978cd8c8deb7c2570f62c840a62d27ed94bafdf52836af0. 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/USX760801414.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638 -Perchè te'n fuggi, o Fillide? (sv164)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e10af774756d0a31eba906c628d1701d21046e2462bcead3bce50922a3abb7. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USX760801415.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638 -Non partir, ritrosetta (sv165)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75174334ddcf686e5586ed6e6616675c4906988a421e732d21262164fafd0ed0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801416.
Ottavo libro de' madrigali (Madrigali guerrieri, et amorosi ...), Venice, 1638 - If my Celia could persuade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4b88f5adbab28199d27ec7a98c14610f215d87eff3d85d70898869a8bbe56a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a870224bac4929be682f768948bfe26f9f4e0d6e8cbf8edefc4c862d7958f2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc93a262470c516314ce74f2bbaafabe07c0fe1f1fb6a82b4b147f3633f3021. 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/USX760801419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4a1c4f13824deb190b4dcb9ea0644a76efdc58ce7ce0575c82a834816113ca. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3921fb6a33f66c401f33c7ca1169de59ee43cf323dcbb3a0507721effc56b223. 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/USX760801421.
DHM Spendeurs: Machaut:Messe Nostre Dame à 4
Deller Vol. 4; Handel, Bach & The English Renaissance
George Frideric Handel: Jephta-Oratorio (1752), HWV 70 -- 'Tis Heaven's all-ruling pow'r
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce710ffe3db22b6e1503d33c14a57547ed26f01985c94e47de4d68fd9c59c98. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801147.
George Frideric Handel: Theodora-Oratorio (1750), HWV 68 -- To thee thou glorious son of worth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6e359d25cf9be8d70a8ee5e983c2303dc983ecbf000bd1f840cf0b672eefd0. 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/USX760801158.
Johann Sebastian Bach: Mass in b minor, BWV233 -- Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab46d9f25034e9a1e71dd6a64d06fec10ffce7554ac0fda37a8df1905e5ec79. 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/USX760801616.
George Frideric Handel: Alexander's Feast – Part I -- Air: War, he sung, is toil and trouble
Oriana Concert Choir and Orchestra & Alfred Deller (Conductor)
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Little Big Box :: English Folk Songs and Madrigals :: English Folk Songs and Madrigals
Cantus Gregorianus; Gregorian Chants (Gregorianische Choraele)