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 0x31e7e6ec71938d9d26c6cb5da465c3bc66f9a11925dca73628c0957a1f877fc8. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9db56f8-ea14-4198-b7fc-87a7400b6d23.json and https://artists.proofprofile.net/proofs/artist/c9db56f8-ea14-4198-b7fc-87a7400b6d23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lost Is My Quiet: English Music in Purcell's Time
The Fairy Queen, Z. 629, Act II: One Charming Night
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 0xb312d3514d2bdd7883816f66cb9e0333e3c16e573997df632c384b7ba579e08a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720330001.
Pausanias, the Betrayer of His Country, Z. 585: My Dearest, My Fairest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e477e690c80eac7730d3f015531ea327daa2f34622cab5ffbf352a38abf5ca. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720330003.
Come, Ye Sons of Art Away, Z. 323: Strike the Viol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e68470bb524ab53953224a299ac4845e59085cba57b400a35bdce76ad41c9f1. 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/CAJ720330013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50260d6ad4b0171bbfce6aedb03709dea776dd8ce1327afebf98f822994297c. 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/CAJ720330014.
Ode for St. Cecilia: See the Forsaken Fair With Streaming Eyes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61ab481b27494d6b8c2482e90ea6cca09c44c8801f01a0ae2b0dca3eae0a516. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720330015.
Welcome to All the Pleasures, Z. 339: Here the Deities Approve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc235bee0367b5d4dbbe2fa39e17f42036d3f0e9b16eeab8dd88d57ade490c86e. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720330025.
The Prophetess, or the History of Dioclesian, Z. 627: Since from My Dear Astrea's Sight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe15c951ea36449c71cf7a9dacd5e98cba255065adce5542981c12ff73173d. 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/CAJ720330027.
Charpentier: Motets pour la Semaine Sainte et Messes à 4 choeurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8673e7724dcfe0e5f6a95eebc235de1aca10ecd09f7b4fe1c652d50a4effe982. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/CAJ720331105.
Montréal Baroque Festival 2005 - Fruits of Passion
The Back-To-School Study Mix: Choral Music Edition
Rise O my soul: Gibbons, Ward, Tomkins & Bull: English Anthems
Matthäus-Passion, BWV 244 (1841 Version by Mendelssohn): Chorus with Chorale "Kommt ihr Töchter, helft mir klagen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2996afb351e4574b6f0a2668f1c27daf5f440fe475d8023583e099e922c5cf5. 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/BER182395301.
Matthäus-Passion, BWV 244 (1841 Version by Mendelssohn): Evangelium. "Da Jesus diese Rede vollendet hatte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c516cfbd56ff1e35a40dc14936293a19a2cfbcae0b4922383e7fac1c9b005e3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395302.
Matthäus-Passion, BWV 244 (1841 Version by Mendelssohn): Chorale. "Herzliebster Jesu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41202e407e9f50a8fee2af795b8d243edbd66fbdc735a737e3bf9e3de7648f64. 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/BER182395303.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Da versammelten sich die Hohenpriester"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33d68625872df709b31562d55aa799b331d925b631c7dbe52031bd50d4c5bab. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BER182395304.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Recitative. "Du lieber Heiland du"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe191733c32507da0a030e5e6239664d3910ed40bf706ba1a77996d13721ab3d5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395305.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Aria. "Buß und Reu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8769e19bb6873329a89366a45c79ebba953e80e419c2e56d35c8522b561fd5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395306.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Aria. "Blute nur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f61a6a029d560cb3146ecc8155531450832bc516b1c5c2e5e01a7695213c2b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395308.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Aber am ersten Tage"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6626f02de417f0473b553d73b98b66b646f66275000bf9dd74cc41047ce8f02. 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/BER182395309.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Er antwortete und sprach"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abbef6333e26d745b9b26b04dd82afa89c07b18ca68e33baee712523acde93d. 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/BER182395311.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Chorale. "Erkenne mich, mein Hüter"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb45323c765282b92c0c9ebd754c7544dc7345794dec407b1721e879dae492c4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BER182395312.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Petrus aber antwortete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69daa50f44ca821fed9e7587bacc521d33f74f2f3b00a2d6f65a1355a4db531. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395313.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. " Und er kam und fand sie aber schlafend"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd84a8d618efcb75b642f4063c10d7270fc449e725be5d8b1b1f3049da24712. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BER182395318.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Duet with Chorus. "So ist mein Jesus nun gefangen" - "Laßt ihn, haltet, bindet nicht!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabb88cf9f97609ba97d9b31ff64747991fcdcda6019b2b21227550ae21a1f77. 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/BER182395319.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Chorus with Chorale. "O Mensch bewein dein Sünde groß"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2939df95a2b414f37feff9796f5b4c84d3a742d836865b45030c37a8d869c96e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395321.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Petrus aber sass draussen im Palast"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd933f30971fde99681d2d3dfc7ec087016103fd10928e50fc9e77dc73508f9e. 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/BER182395325.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Aria. "Erbarme dich"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aa973bb5492e2ecf16ea5412ddf13b44626ffbd0354901b963f898312747be. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BER182395326.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. " Des Morgens aber hielten alle Hohepriester"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c621f2628e2610e03c3e0e84667714c79e55440986682b17d6b124efddcbba1. 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/BER182395327.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Aria. "Aus Liebe will mein Heiland sterben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301c9d014a492da3226d23f0f15c52a01a40b377db1c280aa6426673531f23fb. 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/BER182395331.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Sie schrieen aber noch mehr"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f6965e5ac5e5de2d3ef5adf2631fad9438640ad0a731afaa50e701509ff4f5. 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/BER182395332.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Da nahmen die Kriegsknechte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026442753aa367fde7822b8f01099cc9e8b4a46a73ba2f6238379769c88ce522. 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/BER182395334.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Und da sie ihn verspottet hatten"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6142eebb8758bedeca3d498ecac83d63a46b3ae2836b97e9d5a3db2a9165eb4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395336.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Aria. "Mache dich, mein Herze, rein"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3780886c01cdc5963295949a1d8243f42ad41027642bc45bd5deaa941827a540. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182395342.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Evangelium. "Und Joseph nahm den Leib"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb346fde7e97de69df79c481a4649a09c9e947574ff83cc2f2e4ad052613af999. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BER182395343.
Matthäus-Passion, BWV 244 (1841 Version by Felix Mendelssohn): Chorus. "Wir setzen uns mit Tränen nieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9686dd911c4f404493b529ca13878554bf92e8918886d69ce635407f5a8b9c. 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/BER182395345.
Musique sacrée en Nouvelle-France: Messes, Motets & Pièces d'orgue
Le chant de la Jérusalem des terres froides
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccafa250aff5ed7d5f6fc8ee28122faeefe1c7b303d163d019a58aa8381234d. 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/CAJ721465302.
Sacrae symphoniae, Ch. 41, 12vv: Plaudite, psallite, jubilate Deo omnis terra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15232e721d3d49a4047d4f1c4f433f0dc4c729b3e04062786b7e82896bd456b. 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/CACA30410059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15232e721d3d49a4047d4f1c4f433f0dc4c729b3e04062786b7e82896bd456b. 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/CACA30410059.
Roma Triumphans: Polychoral Music in the Churches of Rome and the Vatican
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6230065244288ba5c0aa0f54a0daf80e26cdf089ac3ff38bc08be93be9f0746. 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/CAJ720431001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c8e1948ec450ebd97c44ae7e2277dfe8684b62b3d6d7c53e3c612685a157e7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720431002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02efbacec25a1442ffc184438b532a502363c46470be8a7759c54f955022d850. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720431003.
Es sang vor langen jahren, "Motet für de la Motte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443bfcac3d7e34c58745803f55dd825281a32b668671d8ccf9523e6329d2dc01. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/CAJ720431004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563c3a369a78a08bb4e3ea036ea64fd1bb54713b27441c2de78d613a635ff7b4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720431006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad4183ab7ee171f3c98b36183b3df60637d7db8bcf0554d19ecfebb24bb7be2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USB8U2011640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe2f3adcf5cc0f14f975881fb4a73410e40de05cdb8d9c297dac35625b63ce0. 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/USB8U2011641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f8b3e7b4dee950a2bd69797f491e9730acedc02e126e9581dfd3b70b7a441d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USB8U2011642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf723bfac8aeb044f6031a08e2098ad7cec6f16b7bfab9e376d150f050797ecfa. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USB8U2011643.
Vespers: No. 5, The Lamp-Lighting Psalms
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb5106d4ee26100184c937748083e027b4f42ddde2dc0b012b59f1e4840de14. 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/USB8U2011644.
Vespers: No. 6, Stikhira of the Resurrection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6421e378959be75db81c126c6d9cd515382926745d17058f55929423ce9f5a08. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USB8U2011645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d8ff1ccdc82d2f271f8b712c1842183e5786b8d017f65bc1bdf878bc0f2b79. 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/USB8U2011646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcc8b08f9d2375acb4910f783c91f31281cfbabee07023eac8fefc0a722ea71. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USB8U2011647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b7efff3c9f804201d277ddd09c6bb0300fe2aea9fcd91d32063bc725aee097. 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/USB8U2011648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058c0bcc48347a08fd3a45de1b5ad777a6ee7bdfd7f1375deac6ef89cc6ae691. 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/USB8U2011649.
Vespers: No. 11, Interlude. The Trisagion Prayers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69e19c6b92b529a8c07b072480b675775f8b757d28ff73c20a0ecb2dd9136d1. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USB8U2011650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2e99a134a1aaa37b0eb3e75ec4ef8969b4d9b30c44ef16d3d782f26af4cb31. 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/USB8U2011651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9924710dbca706b142858cba3099d25254cdbe095e7aaad19f088a2383bbd8eb. 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/USB8U2011652.
Alleluía; Remember My Soul: Sacred Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ced8778b03baf7db2bdcd4720d9648a5985ec5f01426c62932e0982eb2c6b7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA370578274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7979ed2cdec66a999bb0a97e1331235a3f929052ad07c148f998b13b8635c647. 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/USA370578275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c12b06a5a92c6276217af3e7e77cfe7049c0b467834275d57f2f62f01513e4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA370578284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7f93f2f9a039bfad6404533769aae4baf7df4f158a389aa5bd74a6d19c76dd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40900131.