Ana-Marija Markovina (born in Osijek, 24 April 1970) is a Croatian classical pianist. She lives in Cologne with her husband, the psychologist , and their daughter. Life Ana-Marija Markovina was bo
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 0xec4ad26fd9559a0accab429a64ba9d616bef2c1dc52298252a039ef3ac381854. 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/a8d90694-0214-411a-9f72-3fe05f1129bf.json and https://artists.proofprofile.net/proofs/artist/a8d90694-0214-411a-9f72-3fe05f1129bf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mendelssohn: Complete Works for Piano Solo
Kitzlers Studienbuch (Excerpts): Piano Sonata in G Minor
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 0x68b3e810a7e3a03a46d6b48393d69b1ecdf4e85f11e340524ee93a0df2bd4ea8. 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/DEAD61705401 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d82c97dff6737e64427b1644c9795eec4d156f98492d0de2dcd88c5af25e47. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEAD61705423 — a six-check JSON result.
Quadrille, WAB 121: V. Pastourelle. Grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0b39bf8a877bf668267a8052d10b44e94423993b65c6a51315ae586a995935. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61705426 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9258e52e60366932e1739a86fa07fc37b8a400cf0a3f398deeb489c86f7f5da2. 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/DEAD61705431 — a six-check JSON result.
Deutsche Tänze, Heft 1, Op. 7 (Arr. for Solo Piano): Präludium in B-Flat Major. Dolce [Quasi andante]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fee94ac38b1fb3f90c4121ebe36658ee3cf261ff78b4411fcbb5f753ad8644. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEAD61601505 — a six-check JSON result.
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 9
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 8
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 7
Keyboard Sonata in F Major, Wq. 54/1, H. 204: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f811da65ab6174f38c93ee81e5334396a9a7900410b5f724c36b55ba3f32ee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA551432313 — a six-check JSON result.
Keyboard Sonata in F Major, Wq. 54/1, H. 204: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9a5b403cabc73e0c2aba0cba528a8f3e90a258d4d99c9da2fa9f39ab945a98. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA551432314 — a six-check JSON result.
Keyboard Sonata in C Major, Wq. 54/2, H. 205: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7702b971442a0a92c56c6e2201bc854138fab25a7e89a192e1776e6a593c5d. 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/DEA551432315 — a six-check JSON result.
Keyboard Sonata in C Major, Wq. 54/2, H. 205: II. Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d1a25d2d3a2bd882b2ea3b420f968a1acd058af93ef0958db56b040d60ee5a. 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/DEA551432316 — a six-check JSON result.
Keyboard Sonata in C Major, Wq. 54/2, H. 205: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d5efb8f41c6f1e7f670eb1faffd31e61c86dffe469cc2d82793cd5e04614e1. 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/DEA551432317 — a six-check JSON result.
Keyboard Sonata in D Minor, Wq. 54/3, H. 184: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9b6398f2d763fc72d3092f88e6d8e90534375406a6c47514c2cf5e857d6d92. 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/DEA551432318 — a six-check JSON result.
Keyboard Sonata in D Minor, Wq. 54/3, H. 184: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1aefe1df5a9c77ed7c74f8fade03fd21a2758bc1826620f5cbd5c5e15dec0b. 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/DEA551432319 — a six-check JSON result.
Keyboard Sonata in D Minor, Wq. 54/3, H. 184: III. Prestissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b7fb74874cf9f0a3001247607076798e72911a90cc7e3e2d6b926202889fab. 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/DEA551432320 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 54/4, H. 206: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d304c7cd91030dc99c62b2c6164ca83df5de96f99c929e0bf3847b74bc2051c. 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/DEA551432321 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 54/4, H. 206: II. Andantino siciliano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c91ce48839526ec5ccf41526cf298b79e5a1d156467ed506960ad68b2528fcc. 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/DEA551432322 — a six-check JSON result.
Keyboard Sonata in B-Flat Major, Wq. 54/4, H. 206: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8d58acb031cae5bdad8879d3ad8bd1c4c6b3486708ac6b25716ae3f9ed2614. 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/DEA551432323 — a six-check JSON result.
Keyboard Sonata in D Major, Wq. 54/5, H. 185: I. Allegretto grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f4b236e3a99023c1e3bdbdd55748f32136571f9ed422a723cf398a3b2d5125. 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/DEA551432324 — a six-check JSON result.
Keyboard Sonata in D Major, Wq. 54/5, H. 185: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3916e106a83ef60bfa35cfe980d135a19012c8c090396dceb33e450015b4a7e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEA551432325 — a six-check JSON result.
Keyboard Sonata in D Major, Wq. 54/5, H. 185: III. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a3217459979ca323c9a753d26f84793bedc865a234ad31331cce2739d477e. 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/DEA551432326 — a six-check JSON result.
Keyboard Sonata in A Major, Wq. 54/6, H. 207: I. Allegro di molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c3a6e50eea740292d4be341252a9c0d454b30333b75d748492645dfd094970. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA551432327 — a six-check JSON result.
Keyboard Sonata in A Major, Wq. 54/6, H. 207: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40df73579e5c834ddf1250ec23c2b7613ab77075f4563d7ac85f0b7a96810bd1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA551432328 — a six-check JSON result.
Keyboard Sonata in A Major, Wq. 54/6, H. 207: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d68a418b9de51d11eeb514d5517fd7bf1daf571e649cbde0040dee988bdc2d7. 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/DEA551432329 — a six-check JSON result.
Andantino in C Major, Wq. 116/23, H. 249
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9845a3db605874f9419fe9c7b4ad041e9c214ae4364db2a91a2fedc95811ba8. 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/DEA551432330 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2267d4fe88662fb244a8ee6150855a5db3c846f9bca9c64dcb8439e76f62224a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA551432331 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26a3675af2ed34047329f93c7faea2bbbc613158888171c52f76de3ce2680fa. 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/DEA551432332 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5684c2e2f364f20722116bebdc6295669842a1a00988f6b5c943d2d831c39ebd. 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/DEA551432333 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652b565f6a67c0a61e235fa367eb8834ff61d85b000f1cc72392c9506aca5cfc. 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/DEA551432334 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65e1b921858172d433ed363e30c303799ebe0eb55636ff2d36ae8e6afa94648. 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/DEA551432335 — a six-check JSON result.
Clavierstuck fur die rechte oder linke Hand allein, Wq. 117/1, H. 241
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f845f94205f2c9f7e24e68c38597ea531120e29024fb7dbae41c5dd272d1d5a. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/DEA551432336 — a six-check JSON result.
Solfeggio No. 1 in C Minor, Wq. 117/2, H. 220
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743ac98c8be9a1ac304993dca105c8fe944b0aa7e17b45850722f2a547416967. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA551432337 — a six-check JSON result.
Solfeggio No. 2 in E-Flat Major, Wq. 117/3, H. 221
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de6ea5c5feadd23ce21ca4155b6b09be28cf1c28875af96a720c574a1dc5ace. 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/DEA551432338 — a six-check JSON result.
Solfeggio No. 3 in A Major, Wq. 117/4, H. 222
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d69857f77b20183344abd859b1d5a6bc546006779da2558e56f3e22ae9ea35. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551432339 — a six-check JSON result.
Fantasia No. 2 in D Minor, Wq. 117/12, H. 224
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef03c9ccb36a1e799722acd9a3eee33153d0b0f6f12f08072facb4f5c04ff77. 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/DEA551432341 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f5abd5fe00bd04df24cca960356c9b5656194b4171daba062e9b8f6bf98af. 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/DEA551432342 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac4e739e02f8db62355b7dc9c0f3026bcc0191c4f538ae0fd55acaa34c1cf87. 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/DEA551432343 — a six-check JSON result.
La Borchward, polonoise, Wq. 117/17, H. 79
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e061891fcaceeb0e576dca3f237fff37768e9e08118b145e87cfd1e093d028. 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/DEA551432344 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3ba1bdcb309508ede4578dba6689fb54fa1efd1c71e4f0b0967208180f6a06. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551432345 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b52c0310370e48d0942e20afb082442a13f007d87c57d9a998622a8b833dd. 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/DEA551432346 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9b8177a407a912e7e5c95e529ccaf4398e602bc248d23cba7a688537fd2fae. 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/DEA551432347 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c68b645be5da29509228a0007efaeb88fb7bda705a56e635b3f722157a0ddf8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEA551432348 — a six-check JSON result.
L'Auguste, Polonaise, Wq. 117/22, H. 122
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C.P.E. Bach: The Complete Works for Piano Solo, Vol. 6
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 5
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 4
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 3
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 26
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 25
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 24
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 23
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 22
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 21
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 20
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 2
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 19
Keyboard Sonata in F Minor, Wq. 63/6, H. 75: I. Allegro di molto
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C.P.E. Bach: The Complete Works for Piano Solo, Vol. 18
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 17
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 16
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 15
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 14
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 13
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 12
12 Variations on La folia d'Espagne, Wq. 118/9, H. 263
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C.P.E. Bach: The Complete Works for Piano Solo, Vol. 11
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 10
C.P.E. Bach: The Complete Works for Piano Solo, Vol. 1
Keyboard Sonata in F Major, Wq. 48/1, H. 24, "Prussian Sonata No. 1": I. Poco allegro
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Keyboard Sonata in F Major, Wq. 48/1, H. 24, "Prussian Sonata No. 1": II. Andante
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Keyboard Sonata in F Major, Wq. 48/1, H. 24, "Prussian Sonata No. 1": III. Vivace
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Keyboard Sonata in B-Flat Major, Wq. 48/2, H. 25, "Prussian Sonata No. 2": I. Vivace
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Keyboard Sonata in B-Flat Major, Wq. 48/2, H. 25, "Prussian Sonata No. 2": II. Adagio
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Keyboard Sonata in B-Flat Major, Wq. 48/2, H. 25, "Prussian Sonata No. 2": III. Allegro
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Keyboard Sonata in E Major, Wq. 48/3, H. 26, "Prussian Sonata No. 3": I. Poco allegro
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Keyboard Sonata in E Major, Wq. 48/3, H. 26, "Prussian Sonata No. 3": II. Adagio
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Keyboard Sonata in E Major, Wq. 48/3, H. 26, "Prussian Sonata No. 3": III. Presto
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Keyboard Sonata in C Minor, Wq. 48/4, H. 27, "Prussian Sonata No. 4": I. Allegro
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Keyboard Sonata in C Minor, Wq. 48/4, H. 27, "Prussian Sonata No. 4": II. Adagio
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Keyboard Sonata in C Minor, Wq. 48/4, H. 27, "Prussian Sonata No. 4": III. Presto
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Urspruch: Complete Works for Piano, Vol. 1
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Bach, C.P.E.: Keyboard Sonatas, Wq. 48 / Keyboard Concerto, Wq. 26
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": I. Poco allegro
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": II. Andante
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": III. Vivace
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": I. Vivace
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": II. Adagio
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": III. Allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": I. Poco allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": II. Adagio
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