1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dc4a9e5473e24ca62717030427d8f4e0d3cbda212c675c37d3ea7eaf6f7ae9. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56656b6f-94cd-473e-a5b4-80a49767ee0f.json and https://artists.proofprofile.net/proofs/artist/56656b6f-94cd-473e-a5b4-80a49767ee0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Begebet eure Leiber Zum Opfer: After the Sermon: Aria: Gesit der Weisheitl treibe mich (Bass)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326cbc20538c7b7b40f690b97bb6e9ef3f22a114cd11698994c2f885623e8e66. 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/DEB200961124.
Mein Jesu A und O, der Anfrang und das Ende: Before the Sermon: Der Name des Herm ist ein festes Schloss (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b6662e10db1b975ab48c073b2c1aa8745d09809a2b1593465f2a06a36786b. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200961102.
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
Bach: Six Suites, BWV 1007-1012, Adaptations by Ludger Rémy
Telemann, G.P.: Freuet Euch Des Herrn, Ihr Gerechten / Geliebter Aufenthalt
Stolzel: Alles Was Sonst Lieblich Heisset / Seid Willkommen, Schone Stunden
Rolle: Ach, dass du den Himmel zerrissest
Telemann: Singe, Spiel und Generalbaß-Übungen
Telemann: Komm, Geist Des Herrn / Kaum Wag Ich Es / Er Kam, Lobsingt Ihm
Telemann: Der Messias / Septet in A Minor / Quintet in F Major / Quartet in E-Flat Major
Stölzel: Christmas Oratorio & Cantatas Nos. 1-5
C.P.E. Bach: Geistliche Oden und Lieder, Wq. 194, H. 686
Handel: Suites de pièces pour le clavecin
Keyboard Suite No. 7 in G Minor, HWV 432: VI. Passacaille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20387f098d9f53ab4e86b59de31eeba1dcc9d94e07df62b76ef9583b44d41fe4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEB200294018.
Theile: Weltlicher Arien und Canzonetten
Stolzel: 6 Pentecost Cantatas (Pentecost 1737)
Stölzel: Christmas Oratorio & Cantatas 6-10
Concerto grosso in D Minor, Op. 3 No. 5: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc15b31c401fcca1045e4097b52ba9d45de4ade485a165b6ea021814373fcfb6. 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/DEB209963804.
Concerto grosso in D Minor, Op. 3 No. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e45ac1ad91a414b9bb56c74418c2c529a1efe1555314cffd1c7f0580cb43fa. 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/DEB209963805.
Concerto grosso in D Minor, Op. 3 No. 5: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450818d4d100254e150488355d187cbd1029e85507da4e1afd00de0b140f3696. 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/DEB209963807.
Concerto grosso in D Major, Op. 3 No. 9: I. Adagio - II. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ea401fc41bed0e5629f0a4200c25e2dbba6fa9e54f7d65ca95d1edbe6db277. 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/DEB209963808.
Concerto grosso in D Major, Op. 3 No. 9: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b68c30c9224ec9d840bbbc2106798604d5d2fa57f1b8dc3aecad6ec508deddd. 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/DEB209963809.
Concerto grosso in D Major, Op. 3 No. 9: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07038c62b97666e0d7cd8d362e3c3647e47e978a04f962815fa2361d6fc6a989. 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/DEB209963810.
Concerto grosso in D Major, Op. 3 No. 6: II. Adagio - Presto - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4926f800de05005ad2605418a9ea1477c71d57ef007e44506468b05d3dbaf1f6. 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/DEB209963815.
Concerto grosso in D Major, Op. 3 No. 6: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa346667131b8c2ee2cdfbd3dc172cc94f55c923cb1c374314fd2e382b9454ada. 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/DEB209963816.
Concerto grosso in G Minor, Op. 3 No. 10: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14dff202a7ad8751a6a334ad2b658906bf887bfb06b659b9914fa3f57b4a0f4. 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/DEB209963820.
Concerto grosso in F Major, Op. 3 No. 1: I. Allegro assai - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7bd0a62d9a0980c50f2adfa4d0b39c367fec2d1b1ccfacb5eba93cb4bb71da. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEB209963801.
Concerto grosso in F Major, Op. 3 No. 1: II. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f39f0590f09c7d35f9dd236a0affb983f214af78c6d0b4d2634e014cc37e927. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963802.
Concerto grosso in F Major, Op. 3 No. 1: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa70d2a4f7fe7789613a6e604c760d1be7d1b286a263ae67cc38f91f56b404e. 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/DEB209963803.
Concerto grosso in D Minor, Op. 3 No. 5: III. Andante e piano sempre. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c427ea6915c44296c40d19c50ed362dcf35743773db56594a31e88b9cf3bad. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEB209963806.
Concerto grosso in A Minor, Op. 3 No. 2: I. Adagio - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035b015e9137fe074a4d383e3fe1e82d8e3066409c5c760c253c16c0ac76a767. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEB209963811.
Concerto grosso in A Minor, Op. 3 No. 2: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9342186b1fb6c4cee94a5794e3e95f2b0508b8e6ff63a5b54dffe0ea68ed8d2. 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/DEB209963812.
Concerto grosso in A Minor, Op. 3 No. 2: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcea8fe3d6d72a37041bfded75cc2f7dfa977905af3bfacfbb5e15fd4ba05f0. 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/DEB209963813.
Concerto grosso in D Major, Op. 3 No. 6: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf129b003b7ea45422d15577dfd0005ed62725af5883994a8f90cf7c24d9a9f2a. 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/DEB209963814.
Concerto grosso in G Minor, Op. 3 No. 10: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa4c14e05e15452e08cba03529da4efe38d0311b351d6f4d38aac7850435044. 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/DEB209963818.
Concerto grosso in E Minor, Op. 3 No. 3: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10398bc3946c3461c862adf90ae28f3bfcadd797e2fd4b942473ca96a72513e. 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/DEB209963823.
Stolzel: German Chamber Cantatas, Vol. 1
Telemann: Die Auferstehung, TWV 6:7 & De danske, norske og tydske undersåtters glæde, TWV 12:10
Stölzel: Der für die Sünde der Welt gemarterte und sterbende Christus
Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 1: Drauf sagten sie dem Höchsten Dank
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd0e532f9d57800ea69f4484ee47ecd726e129baacf6b6078090d8ace8cd5b5. 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/DEB209756007.
Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 1: Mich vom stricken meiner Sünden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d66e7f4eb972cd869d0a2743203a6a7501ace2265bbbe1c46d081520bb1ccd. 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/DEB209756001.
Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 1: Der Gott, dem alle Himmelskreise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3ea3867b98afc7a9ae6bf63abb83f1dfebeb2a341aaf7e9763b09bc04b0af. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEB209756003.
Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 1: Gott selbst, die Brunnquell alles guten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2de30d97d026fd26563468a2b98c6b963b82933e5fafb9e2682deeb98459d2d. 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/DEB209756005.
Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 2: Ach Gott und Herr
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd8a825132e7d0baab159641e46a6eeaee95f17551cc37287a4df1c59167ae0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209756023.
Bach, C.P.E: Symphonies in E Minor / G Major / F Major / C Major / G Major
Musik an westfälischen Adelshöfen, Vol. 1