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 0x1ab9d5f489c0fb7b555412370a1d562c5da2c30fafe304e50ee9746df420ff8e. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f81d100f-5536-476f-8a00-a0b431369ec8.json and https://artists.proofprofile.net/proofs/artist/f81d100f-5536-476f-8a00-a0b431369ec8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mein Jesu A und O, der Anfrang und das Ende: Before the Sermon: Der Name des Herm ist ein festes Schloss (Chorus)
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200961102 — a six-check JSON result.
Begebet eure Leiber Zum Opfer: After the Sermon: Aria: Gesit der Weisheitl treibe mich (Bass)
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200961124 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963801 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963802 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963803 — a six-check JSON result.
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 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/DEB209963804 — a six-check JSON result.
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 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/DEB209963805 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963806 — a six-check JSON result.
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 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/DEB209963807 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963808 — a six-check JSON result.
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 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/DEB209963809 — a six-check JSON result.
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 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/DEB209963810 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963811 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963812 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963813 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963814 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963815 — a six-check JSON result.
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 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/DEB209963816 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963818 — a six-check JSON result.
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 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/DEB209963820 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209963823 — a six-check JSON result.
Stolzel: German Chamber Cantatas, Vol. 1
Bach, C.P.E: Symphonies in E Minor / G Major / F Major / C Major / G Major
Stölzel: German Chamber Cantatas, Vol. 2
Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": I. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88d229dd99dd6d6b15e5d3a8affeb6f8ef5c10caa90a3cf32a964b9d826dd83. 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/DEAD61630001 — a six-check JSON result.
Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fdb4ea534e31f68a4c0f1161523e3f90fa85e3fe321dc5764332bdc93d2923. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61630002 — a six-check JSON result.
Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440bf22db6cece303df2ddb0fed06b1c9b7bb852b0d160d1ccca6036c1f5c578. 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/DEAD61630003 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc28bade0e7040e615e4c2552debc316ab4f9c4acb9bbc9ce677fdf40839da31. 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/DEAD61630004 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0245a20f1c1ca900961594d2374b7ec8b4c7ddf2e41d9e5a03b686566b2435bd. 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/DEAD61630005 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e76e475eaa97715ef91a581d589a5fe8e93f77db39f76a9e12e459511a0122. 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/DEAD61630006 — a six-check JSON result.
Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": I. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10c09bb463e73221f49a22c5de62cb3b46fd98f04a572900f6d4957a4fc60f5. 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/DEAD61630007 — a six-check JSON result.
Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd66efaf31119481c4fee1dc4eb9dc6ec159372ed35893043645cdd1a8b9fe5. 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/DEAD61630008 — a six-check JSON result.
Keyboard Sonata in C Minor, Wq. 48 No. 4 "Prussian Sonata No. 4": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5508abd72ff798cb1fcb1d0554727970b7fce40eca41d62ea4b850dc10c539b4. 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/DEAD61630010 — a six-check JSON result.
Keyboard Sonata in C Minor, Wq. 48 No. 4 "Prussian Sonata No. 4": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a403eea46975b79783b0fcb4183daed4ffce49efda5cc0e57fd76f210fa20e3. 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/DEAD61630011 — a six-check JSON result.
Keyboard Sonata in C Major, Wq. 48 No. 5 "Prussian Sonata No. 5": I. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8346c8067e1671a3e5eeed069544e0086139011a2c87c2ea3f507abb04bda1e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61630013 — a six-check JSON result.
Keyboard Sonata in C Major, Wq. 48 No. 5 "Prussian Sonata No. 5": III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6db20e0fe70a5d018c337fad90dceadf09db22bdbb8149296e9777909ff4bc3. 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/DEAD61630015 — a six-check JSON result.
Keyboard Sonata in A Major, Wq. 48 No. 6 "Prussian Sonata No. 6": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec55777f5b0dff1d23f03f2e66fdc5d48729871f8661a9db82532d49b05beb26. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61630017 — a six-check JSON result.
Keyboard Sonata in A Major, Wq. 48 No. 6 "Prussian Sonata No. 6": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb176a4a3e6da9ee4c9a1e5575979adaa46e3d0ea273c20161e80fc2c7d8b625e. 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/DEAD61630018 — a six-check JSON result.
Keyboard Concerto in C Major, Wq. 112 No. 1: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daccce5e612088afe4cc23cf4d069b525ae26266564d72e915220c3adbe98e6. 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/DEAD61630020 — a six-check JSON result.
Graun: Trios for Violin or Viola & Clavier
Graun, J.G. / Graun, C.H.: Trios for 2 Violins and Basso Continuo (Les Amis De Philippe)
Theile: Weltlicher Arien und Canzonetten
Haydn: Anne Hunter's Salon, Scottish Folk Songs, & English Canzonettas