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 0x37a6ada3978cb86c68a8ad9decac7a0244c6f64428de12c0428d24d2cfa51fe5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72d55367-c306-4cb3-af90-9044ec9ae299.json and https://artists.proofprofile.net/proofs/artist/72d55367-c306-4cb3-af90-9044ec9ae299.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003c91639cefef25cbc678ed9bffcc3fb91120d33f46921ee1d76bc027189f80. 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/ITBZ82300514 — a six-check JSON result.
D. Scarlatti: 55 Keyboard Sonatas, Vol. 2
J.S. Bach: Goldberg Variations, BWV 988 (Live)
Goldberg Variations, BWV 988: Var. 4 (2) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf165c6a3e9f5a81ff2efafd5e980ab8ffac5915a94bef3732ae25c00c2a9815. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82200947 — a six-check JSON result.
Goldberg Variations, BWV 988: Var. 6, Canone alla seconda (1) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7e1db1f6c3f1bd208c82fe5ff3932b78815d70e7b42f91a8a5b83774b5048a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82200917 — a six-check JSON result.
Goldberg Variations, BWV 988: Var. 6, Canone alla seconda (2) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2509784bf24438b9677f251fe9f20f2eccf74e2e06acbfc0a54febe6c4c999bd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82200949 — a six-check JSON result.
Goldberg Variations, BWV 988: Var. 19 (1) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de28b21e7959dc8d13f7902eb8a2e343af6641964c7210ca61ed0b40c345ca. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82200930 — a six-check JSON result.
J.S. Bach: The Well-Tempered Clavier, Book 1
The Well-Tempered Clavier, Book 1, Prelude & Fugue No. 15 in G Major, BWV 860: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32430c801d2f9838c4875f03213456509b3fadbde67ebba29ea5b1a913c53521. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ITBZ82200428 — a six-check JSON result.
The Well-Tempered Clavier, Book 1, Prelude & Fugue No. 23 in B Major, BWV 868: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317aabaf89cd2447c96c7de767afbc376f5b674d0494f579c65b18056ae10f20. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82200444 — a six-check JSON result.
J.S. Bach: Notebook for Anna Magdalena Bach (1725)
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 3, Menuet in F Major, BWV Anh. 113
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174f650bfe07cc3dff7bd561fc83df74fa80ba17c79df384daf42868b3b51347. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100818 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 12, Gib dich zufrieden und sei stille, BWV 510 [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3f4cf1431b92cbe39049bfa801bfefc9a9e5c7513abd15d42a6d4b08e7f80. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100819 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 4, Menuet in G Major [Attrib. J.S. Bach's BWV Anh. 114]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6e1ba8e9acc920e941393eb05ae8aa8433ed595c5913ab1edd7e5de72dc5b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100820 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 13, Gib dich zufrieden und sei stille, BWV 511 [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22bba0ebbd03da7cfb1482156f107d68ec30a529cb14584f8372790a121be6f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100821 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 5, Menuet in G Minor [Attrib. J.S. Bach's BWV Anh. 115]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543b4fda0d9941f30d4677ce5dcd34e17df476e35c339044eb41889395477dcc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100822 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 7, Menuet in G Major [Attrib. J.S. Bach's BWV Anh. 116]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffdbeb885cc7077c9e05a009726aa4e7d93cd0ef178fa8fc6e8b663b32409c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100823 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 6, Rondeau in B-Flat Major [Attrib. J.S. Bach's BWV Anh. 183]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27f8bf9aeb7646703d024f6241f774ceca89b7e1a4e5f1a27d1edef43125126. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100824 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 25, Bist du bei mir, BWV 508 [After Stölzel] [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03ebd446923d5071804043f124253927419b77fb39c7a971b783fa4a0582e76. 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/ITBZ82100825 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8a, Polonaise in F Major, BWV Anh. 117a
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b96bc37ac13d2c8d5774de292b3896a8d53eac48093a716effc2fe8e55ed7. 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/ITBZ82100826 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8b, Polonaise in F Major, BWV Anh. 117b
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2bddab938626fbcfd5c5950f959ac196d3ad8b3e9fb2e7689e6d522537658a. 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/ITBZ82100827 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 9, Menuet in B-Flat Major, BWV Anh. 118
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a3f8e56d51b5dab4bd6cef15b17194784ee6e0cd7638bf0e655f5b6ff8636. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ITBZ82100828 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 10, Polonaise in G Minor, BWV Anh. 119
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624ea9047c9e9eacb5eaacf059642c82937f3075c790516075f8feaea902e68a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/ITBZ82100829 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 11, Wer nur den lieben Gott lässt walten, BWV 691
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff3cec20c9911fc71213f2acdd5d1b5b11c9c79984d35b1b47bb276ccd28d63. 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/ITBZ82100830 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 14, Menuet in A Minor, BWV Anh. 120
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ae11f84a9f50372653d2ef02b236e5e6d0f4f58ffdd445aa7889f451e66b2a. 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/ITBZ82100831 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 15, Menuet in C Minor, BWV Anh. 121
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe19f57b3ad0e17b9b47b1ded3c1ac9d7ad6e2f5799f74264314a6d1185c2a34. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100832 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 16, Marche in D Major, H. 1 No. 1 [Attrib. J.S. Bach's BWV Anh. 122]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ae6a80e29309e54319094d10462b506d4ccbf82a8a9d5806383a5a57900d46. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ITBZ82100833 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 17, Polonaise in G Minor, H. 1 No. 2 [Attrib. J.S. Bach's BWV Anh. 123]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46975dfaa5682dea590cc6246caafe02c90f93ea58f62aca110e1b04b0740ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100834 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 18, Marche in G Major, H. 1 No. 3 [Attrib. J.S. Bach's BWV Anh. 124]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7339802da313b1aa49d9e184ce9dcee75339cb17f2db46e32db84b3b8f19285. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100835 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 19, Polonaise in G Minor, H. 1 No. 4 [Attrib. J.S. Bach's BWV Anh. 125]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5543b14dd32af0b9cc0096769cadf74c8345ef8a3b797317c7b6519a36e2f336. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100836 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 20a, So oft ich meine Tobackspfeife, BWV 515 [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7a49dd28272436d791c4675a4b265d4aa3ba0580c5c69eb83b806cff6da772. 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/ITBZ82100837 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 21, Menuet in G Major "Fait par Mons. Böhm"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7bc5ba5b43f6597fe6d5055c62e3c1c672dddab5cdbde24017dda5aff1ce8d. 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/ITBZ82100838 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 22, Musette in D Major, BWV Anh. 126
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d6862fd661d3ba553be03cf7805b409161c68b4195cc1131b37536d19072f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100839 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 35, Schaff's mit mir, Gott, nach deinem Willen, BWV 514 [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc75ab5cb0d0ef8ca88c64832b1b97033a68be17f7542f790aeee0c69387c2c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100840 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 23, Marche in E-Flat Major, BWV Anh. 127
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1054a286b7944db8ab5708e919d79e5009da366b21d27eadbe66f53a3e6bad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100841 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 42, O Ewigkeit, du Donnerwort, BWV 513 [Arr. for Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1d3891e3daa317cade3c197234917714ab7d01e6d62040b66927e227e1b5ed. 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/ITBZ82100842 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 24, Polonaise in D Minor, BWV Anh. 128
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a48c7d56b10127c0030c2b59ce213b4131d675d490ce19f186c3374ead3cc2f. 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/ITBZ82100843 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 27, Sonata in E-Flat Major, Wq. 65 No. 7 [Attrib. J.S. Bach's BWV Anh. 129]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abe75d0ded72c3727785965e581140cbd35dd4b910227f7820539b74259bd8a. 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/ITBZ82100844 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 28, Polonaise in G Major, BWV Anh. 130
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81854345f8a9301311fe6dedd20def9d35cc8d4c14b7f1aa4a0b4fd0166cf6e2. 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/ITBZ82100845 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 32, Untitled Piece in F Major, W. A22 [Attrib. J.S. Bach's BWV Anh. 131]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b6d76f520c9897c1f143b11e8f4349abbde4e354256d11c38d4aa3a4dd26ad. 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/ITBZ82100846 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 36, Menuet in D Minor, BWV Anh. 132
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88ab3e3f0e18bbda38d8473a33f337ae216f86559a7f696271ae6ea9ef05a15. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/ITBZ82100847 — a six-check JSON result.
Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 39, Dir, dir, Jehova, will ich singen, BWV 299 [Arr. for Piano]
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J.S. Bach: Italian Concerto, BWV 971 & Other Works
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Praeludium et partita dei tuono terzo, BWV 833: II. Allemande
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Praeludium et partita dei tuono terzo, BWV 833: III. Courante
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Beethoven: Diabelli Variations, Op. 120 & 6 Bagatelles, Op. 126
Beethoven: Late Sonatas, Opp. 101 & 106 "Hammerklavier"
Beethoven: Late Piano Sonatas, Opp. 109-111
J.S. Bach: Notebook for Anna Magdalena Bach (1722)
Notebook for Anna Magdalena Bach (1722) [Excerpts], Air with Variations in C Minor, BWV 991 [Completed by A. Simonetto]: No. 2, Variation I
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Notebook for Anna Magdalena Bach (1722) [Excerpts], Air with Variations in C Minor, BWV 991 [Completed by A. Simonetto]: No. 3, Variation II
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Glaube, Liebe, und Hoffnung in F Major, Ahn. 15 "Farewell to the Piano"
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D. Scarlatti: 55 Keyboard Sonatas, Vol. 1