Ruth Slenczynska (born January 15, 1925) is an American classical pianist and the last living piano student of Sergei Rachmaninoff. Early life Slenczynska was born in Sacramento, California. Her Poli
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 0xbff54ca1ed6c68c0d68922a82bc28800c3a07976b791aebfd84e6100c27ae4c4. 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/ae23da44-e58f-4f16-8e35-f243f9f3831d.json and https://artists.proofprofile.net/proofs/artist/ae23da44-e58f-4f16-8e35-f243f9f3831d.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 0xc6f983501e69d4bd45d0a7716f5785dc42e4f33e60dd7a19baa52ee56d29acc5. 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/GBUM71406939 — a six-check JSON result.
The Piano: The Heart Asks Pleasure First
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c687504ad8325be2cb862a9288c0fa39d2083ec21db0078dcc0d2aaddcd496. 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/GBF071303900 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b72781e9890cfb5456180de8971bfa8858e99fed143915bae51dcf075b681. 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/GBF078341401 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa19e91e5fefe2e15916b279b838dd129313d475b41ea37e86b3bdb092632fc. 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/GBUM71406942 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fca4224f587e450442d731bf05121f4f2ab17a8f607a75e826d7fae751b84a. 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/GBUM72001259 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eae1c2b0a2886fcb433bb66e6ad75837a86fcf0aa138559b5b0eb3bc087e25. 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/GBBBA1800070 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b57c12e920d0326001efdc1f73585f1e626ed8f0bfef31557a4ef12afab00a. 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/GBBBA0500410 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b7ba7248ef52719ece9886637dba426d51166d4b548930b270449df9144a07. 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/GBAAA8600074 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c064912c6dace18d01eae0a1491e8eff83f35392c8c903a9f5cc0518e683cb1. 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/GBUM72001266 — a six-check JSON result.
WOMEN AT THE PIANO - AN ANTHOLOGY OF HISTORIC PERFORMANCES, Vol. 1 (1926-1952)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70d88adfb9a4cd1c23080cac89c38bf535a658f585487d7c088e2a9b9b1958b. 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/GBF079540817 — a six-check JSON result.
Waltz No. 6 in D-Flat Major, Op. 64 No. 1 "Minute Waltz"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6d83d62319bf4150e2ccd51fde237d2e8b7af6bdaa39a659283cbdbae61eb4. 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/GBF079910430 — a six-check JSON result.
12 Etudes, Op. 25: No. 6 In G Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6c5a1c63a2d5a72090da931601c47ec4326e6594194210839f6f0e8b14f803. 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/GBF071440306 — a six-check JSON result.
Nocturne No. 19 in E Minor, Op. 72, No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ff32a53828675f3446f843359bf842d58baf5ca01fdba1bb78a3f0ba72ddbd. 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/GBBBA1100450 — a six-check JSON result.
12 Études, Op. 10: No. 12 in C Minor "Revolutionary"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcf9de3202b40bd735b7483236d7758d5a4c6578d24b7bca314f0394570cf14. 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/DEF057230011 — a six-check JSON result.
24 Preludes, Op. 28: No. 11 in B Major. Vivace - Recorded 1974
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f2830da63f438ed53ce2d2b79b8eae82eac9f21c32ef489406e6bdda90191e. 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/DEF057430611 — a six-check JSON result.
Fantaisie-Impromptu in C-Sharp Minor, Op. 66
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728c2fed92facb7b5bed5d139b7486d4ed14f3f268b141af4b84d5dcd16c548e. 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/DEN961700570 — a six-check JSON result.
12 Etudes, Op. 25: No. 1 In A Flat Major - "Harp Study"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823af7e8885eb2774fb2f27b541c71a52496d635e607cebff92f70ec6daba077. 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/GBF071440301 — a six-check JSON result.
Mazurka No. 5 in B-Flat Major, Op. 7 No. 1. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123fcaf4c45baf59ccab75af39c8bacf610e45ef09ff3bf5200e79a7bcbc6e78. 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/GBF078340605 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1660aa54a3eeb98d752c81ebb5e0237b5c1c89fa1a869226e231ff8a1a3b383. 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/DEF057530507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c7cbb86384748f6bef5d19273786beb0abf236f2d25629a979e32732ebe683. 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/GBF078040207 — a six-check JSON result.
24 Préludes, Op. 28: No. 7 in A Major: Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b03c6d6f7f6515890289130d8ee2c67e7d75708df25cae449c86b11da686a. 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/DEF057131107 — a six-check JSON result.
Waltz No. 8 in A-Flat Major, Op. 64 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ee14fed490ff2bb06e6d4ed8219998eefd05a4661ba92b6c19fe2cadeb816c. 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/GBF077611553 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2edb8e284af9213cdab48ed7b6146a6b9c927680112a9364f5974e2135bca6. 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/NLA507812603 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07ec2faf2d4780ff05996a3770a5751b59e355d0e0d66160b6bf3c4d560b846. 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/GBF078140412 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4162046f34c75f20a3ea1af0fa773640c4a4be49c84d78e0422011f509346f09. 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/DEF059902580 — a six-check JSON result.
24 Préludes, Op. 28: No. 21 in B-Flat Major: Cantabile - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa053a802063102732f418d9bfb99ae1f177111cf3fbe515fbad1ca77d16db23a. 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/PLC701552421 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3f4779b9cb742d45354e7fbfb77d8c2e8858d4babfb03feaaae32287257983. 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/DEF059902590 — a six-check JSON result.
Mazurka No. 34 in C Major, Op. 56 No. 2. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f88fab95f08d772ce678ec044848f1c7800fd7c0258f0af42ade5b8f1707fe8. 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/DEN961801612 — a six-check JSON result.
Waltz No. 6 in D Flat, Op. 64 No. 1 -"Minute"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1aa5feed445ae9010ab7e6927a7c680a5ffe978d99d3c052d140b4bcf63dc3. 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/NLA508101906 — a six-check JSON result.
Waltz No. 7 in C-Sharp Minor, Op. 64 No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ba9f534b35b7daa6b630f2d1f6ad0e7eaf84f0ac3816162739ae89df10982f. 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/DEN960801600 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae47c1b0f0061cdba7a3d39b8a59f7f5053507f90596a2d538920b087e60193c. 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/DEF059603310 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04159755872dc45be781d1fb37018743752b7c4547918e26267b78755d417c42. 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/DEF056730720 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbda303768f85acf70f7d2a9788ea238fb045a14c4c705414aa11256319c3e9. 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/GBBBB0102006 — a six-check JSON result.
Waltz No. 8 in A-Flat Major, Op. 64, No. 3 (Arr. Godowsky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daaf09f5550eac7616c7a4822baa9b2c747b69ccd4a79f59285452713150db7. 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/GBF077742910 — a six-check JSON result.
Variation sur la marche des Puritains de Bellini, KK Anh. Ia/5 (Var. 6 of Hexaméron by Liszt, S. 392)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119e04d990c36f93b9fd52d20739541598ef5624756c60a40734a69c9dd05989. 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/GBF078240314 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15689e3912d79986047dcb606e2cb23ed471d3b89d94f4eac894abe446922163. 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/DEF059902550 — a six-check JSON result.
Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf513e71598667d08493510cec37a0136f6e23e10cd0f647d1908ab01f2c4dce. 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/DEF059103044 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57bc4748f6826fd3bbbbfb3f9d59bf54db854733696ced611af445cfbe0e2fe. 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/DEF056730730 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc229bc53fbaba9d41126fe68c51d1b42840cee4a675a8e46b4699ba33872a3. 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/GBF077940409 — a six-check JSON result.
3 Mazurkas, Op. 63: No. 2 In F Minor. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077bba7334321a57d73883efa60786827fc2362b0bb300a21ae5a54dade05071. 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/DEN961600382 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6399348c72f2d98ee6ae32c4506e3e2de0a7742605391d19d23ac0927983b733. 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/GBF078240204 — a six-check JSON result.
24 Préludes, Op. 28, C. 166-189: No. 9 Largo in E Major, C. 174 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49cf72ab5dedd87f2a093c3f3c47b02811cac8de6c5b4412059938065e4fd8b. 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/DEN961330609 — a six-check JSON result.
3 Mazurkas, Op. 59: No. 1 in A Minor. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a735192f28240f5917dc361c1ca5aaa6dffab75826bbae67721d616a06480. 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/DEN961600351 — a six-check JSON result.
Mazurka No. 38 In F Sharp Minor Op. 59 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29530e018991179bce3df6084812f247d29b4c19a6280706711f4486cd1bb7c7. 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/DEF056730740 — a six-check JSON result.
Waltz No. 5 in A flat, Op. 42 - "Grande valse"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eefd50bed2bfcc060da754d01ed5ed060a57375e63367e8078ac524205fdce. 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/GBF079540805 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecaa09ca3c17f87e5a904664c0e1c23c7ddb489b1593b24d704dd02c8118aae. 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/GBF071440304 — a six-check JSON result.
Waltz No. 13 in D-Flat Major, Op. 70 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a56e90b461d42d732c621d828977f75ec94b8d6f94878b0239a70b5d9856d50. 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/GBF078140404 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1ced5961ad0c12d46fa9e56b355d8f041417e7a1273bc606419d9416319e35. 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/GBF078441310 — a six-check JSON result.
3 Mazurkas, Op. 59: No. 3 in F-Sharp Minor. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdedfe5c196a5f2c7f3faa02eb7cb146369a54d18a82aa594e2e767db3e76bd. 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/DEN961600353 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454a980ed7b17450d2d02fd40c49bb768fbd88414ee78e37fd80ba7b19e318da. 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/GBF078541808 — a six-check JSON result.
Piano Sonata No. 3 in B Minor, Op. 58: II. Scherzo. Molto vivace - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76979a5b6102b3d28020dce0a8ff6940c3febe39b7fc0d57e3580a4a593c7ae0. 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/DEF056730782 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf508fce6030bc77d28e007ad1e0db8482e691e57dbb2e3b0eb61bf50dc489042. 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/GBF071440302 — a six-check JSON result.
Introduction And Polonaise, Op. 3: Introduction - Lento - Excerpt / Live At Concert Hall, Kyoto / 2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e9b850dd771c7536e682888fd5679a705d0eb0e94eca194935dc12a55e4458. 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/DEN960000684 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a50f3774ab33b26a243ca7415a2dadb2ce058a4cf375719deb45ef1f6faf7e. 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/NLA507812606 — a six-check JSON result.
3 Mazurkas, Op. 59: No. 2 in A-Flat Major. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1796b706a74da2a166c60fa6e3a6adf3bee1b3da4bad6107ac34b9aa486ae9dd. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961600352 — a six-check JSON result.
12 Etudes, Op. 10 - Paderewski Edition: No. 7 in C major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85a276b5fc8ff587d9f283abdff5fbc3c9b64e6e86099f0232610334e8d6a57. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/GBBBA0442807 — a six-check JSON result.
Mazurka No. 22 in G sharp minor, Op. 33 No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f5175ed9478e56f4b931465ed62a4fb62c80e155e4cc2be577c823db3720cc. 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/NLA509509015 — a six-check JSON result.
24 Préludes, Op. 28, C. 166-189: No. 20. Largo in C Minor, C. 185 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723787d4ba6f14cbbefb22d618e3f2f70fa669d561c5b22c3400e7d09c6b17f. 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/DEN961330620 — a six-check JSON result.
12 Etudes, Op. 25: No. 6 in G-Sharp Minor "Thirds"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007513bff4fc512cfb6ff5179ba099005f056ef095fc4fddc727a19d7f84b120. 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/DEF059603340 — a six-check JSON result.
12 Études, Op. 10: No. 1 in C Major "Waterfall"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1ca08dd889554124e4cadcf68a4bf0cc366254a4788b195c1aed61b5b5ef61. 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/DEF055634201 — a six-check JSON result.
12 Études, Op. 10: No. 2 in A Minor "Chromatique"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b86dc6d5d4b804c1db099b7d27fc465ddc36b1ef79d8d17deea9344f2d80c5. 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/DEF055634202 — a six-check JSON result.
12 Études, Op. 10: No. 3 in E Major "Tristesse"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0e043acd35971ebef3039d539585a10a0155fce80da6a9d310df86e0d65f4f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEF055634203 — a six-check JSON result.
12 Études, Op. 10: No. 4 in C-Sharp Minor "Torrent"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5790d3e80af962003c38ec390e7c28f767df5ba103c20946aa0a97abc7b30d4a. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634204 — a six-check JSON result.
12 Études, Op. 10: No. 5 in G-Flat Major "Black Keys"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75b773e416041a59b8b956c4890cd34e7db6890338b3c374c4c5d1e051d809b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634205 — a six-check JSON result.
12 Etudes, Op. 10: No. 6 in E-Flat Minor "Lament"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f93a276423ba51e65f68abf4c4267150a87ce861e0b3b9e7917281eca90534. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634206 — a six-check JSON result.
12 Etudes, Op. 10: No. 7 in C Major "Toccata"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f98fca127435b1c633695bb16d05236df66260b91a261f2b35d0e0c743db24. 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/DEF055634207 — a six-check JSON result.
12 Études, Op. 10: No. 8 in F Major "Sunshine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567c8c6f3839821e648155f40e45a156a7676849565ae5ff58cd31173dfc63a0. 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/DEF055634208 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791ead60e115c15e7e10e3d7391fb5fde01af098453f2ede080510668355cc62. 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/DEF055634209 — a six-check JSON result.
12 Études, Op. 10: No. 10 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf14c845febde44f33140beb325f5d5b2736ea44c567990fbbb4e17ae102ecff. 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/DEF055634210 — a six-check JSON result.
12 Études, Op. 10: No. 11 in E-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535c8ec4e939a5063351c07e4e28ba3d22abf50086a2480b8d47e250dea5abd6. 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/DEF055634211 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf472c4ace2fc35956aeb7589e2013fdb57210a10a4154462c3e1071ec9c513. 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/DEF055634212 — a six-check JSON result.
12 Études, Op. 25: No. 1 in A-Flat Major "Harp Study"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85c83a6f8d67df72880a35e7794737299fe20dec8b08f304400df5d09d9a29b. 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/DEF055634301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc906f3bd838ef11d798a22eb15abc0ab131b763595cefe8dab29a6b1a9706fb8. 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/DEF055634302 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff85c9666ae5ac8a798238cd11d019c9f05a1f1746859cea6e04af268315f273. 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/DEF055634303 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076895b083551d125d46c197d065a888bbf9db1aa4a5e0a4c8ae4e74ad0c9acd. 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/DEF055634304 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac1f56601a519f81ab2914f7c10d4e8a640973f2cb65f887c1ab7c3c5a01f5. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEF055634305 — a six-check JSON result.
12 Études, Op. 25: No. 6 in G-Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545b105fc7f7c00cf569f8808a6b266435b7ebab08d26e0b13835b33640f78fc. 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/DEF055634306 — a six-check JSON result.
12 Études, Op. 25: No. 7 in C-Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a948894cee44474b043b48a4650da6a5b51f96eb9860250cdc5760760f1b572. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEF055634307 — a six-check JSON result.
12 Études, Op. 25: No. 8 in D-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f141bc76d8fe719d03a99c2e745b3f8eaaeb10fda42c24503f1a7f3568ef475. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634308 — a six-check JSON result.
12 Études, Op. 25: No. 9 in G-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49c4caa58557928ebad0836f6f609a7168dfc22f9f7867ca59997bfc17fc01. 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/DEF055634309 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe53de805f50d7bd4c9cc5bf2b41dd15c9b20e17d24d6329afdffd829143590f. 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/DEF055634310 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75632b3f3fa4f1c5020473c38e9eadc270d08d0ddae5294e8da76efdb19f704. 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/DEF055634311 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadd3dddd15f7bf9241fc0769cf095ed844a690cb1b6dd9f28fda2ac20420abc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634312 — a six-check JSON result.
2 Waltzes, Op. 69: No. 1. Waltz in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a54a6bb14f25525ebcbd8b126ad72acb3e21b98d9607fa0b0f8e1f5387e406. 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/DEF055909960 — a six-check JSON result.
2 Waltzes, Op. 69: No. 2 Waltz in B Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8567f8916acefc9648155258bb4c83cd95f828766d8f3523654508a12ff34f2. 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/DEF055909970 — a six-check JSON result.
24 Preludes, Op. 28: No. 1 in C Major: Agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd63fa0de6374c471370644441d2096cbb2afc6d529eaa19f4760ca7d7b1c62. 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/DEF056233921 — a six-check JSON result.
24 Preludes, Op. 28: No. 2 in A Minor: Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83807b93b701337a89bf8f0ddad2c79766a9737079bcd87c4e958a4d35b4b17d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056233922 — a six-check JSON result.
24 Preludes, Op. 28: No. 3 in G Major: Vivace
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24 Preludes, Op. 28: No. 8 in F-Sharp Minor: Molto agitato
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24 Preludes, Op. 28: No. 15 in D-Flat Major: Sostenuto
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13 Preludes, Op. 32: No. 5 in G Major. Moderato
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Fresh from West Chester: II. Let's Sit It Out, I'd Rather Watch
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Grand valse brillante in E-Flat Major, Op. 18 (Ed. Paderewski)
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Lyric Pieces, Op. 65: 6. Wedding Day at Troldhaugen
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Préludes / Book 1, L. 117: No. 8, The Girl with the Flaxen Hair
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12 Études, Op. 10: No. 3 in E Major (Ed. Paderewski)
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24 Préludes, Op. 28: No. 23 in F Major. Moderato (Ed. Paderewski)
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Prelude and Fugue in C-Sharp Minor, BWV 849
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Ruth Slenczynska - Complete American Decca Recordings
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3 Waltzes, Op. 64: No. 2 in C-Sharp Minor
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Chopin: 12 Etudes op. 25 / Impromptus op. 51 & 66
Chopin: 12 Etudes op. 10 / 2 Impromptus op. 29 & 36
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Schumann: Carnaval / Kinderszenen / Sonata No. 2
Ruth Slenczynska Plays Chopin And Liszt Live!
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Chopin: 12 Études, Op. 25; Barcarolle, Op. 60; Tarantella, Op. 43
Chopin: 12 Etudes, Op. 10, Trois Nouvelles Etudes, Berceuse, Op. 57, Three Ecossaises, Op. 72
Trois Nouvelles Etudes, B. 130: No. 3 in A-Flat Major
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Chopin: 12 Études, Op. 10: No. 3 in E Major (Ed. Paderewski)
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Barber: Fresh from West Chester: II. Let's Sit It Out, I'd Rather Watch
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Debussy: Préludes / Book 1, L. 117: No. 8, The Girl with the Flaxen Hair
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Chopin: Berceuse in D-Flat Major, Op. 57
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Rachmaninoff: 13 Preludes, Op. 32: No. 5 in G Major. Moderato
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Chopin: Waltz No. 7 in C-Sharp Minor, Op. 64 No. 2 (Live)
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 1
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 2
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 3
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 4
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 5
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 6
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Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 7
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Ballade No. 1 in G Minor, Op. 23 - Pt. 1
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Ballade No. 1 in G Minor, Op. 23 - Pt. 2
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Ballade No. 1 in G Minor, Op. 23 - Pt. 3
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Ballade No. 1 in G Minor, Op. 23 - Pt. 4
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Ballade No. 1 in G Minor, Op. 23 - Pt. 5
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Ballade No. 1 in G Minor, Op. 23 - Pt. 6
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Ballade No. 1 in G Minor, Op. 23 - Pt. 9
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Ballade No. 1 in G Minor, Op. 23 - Pt. 10
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 1
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 3
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 4
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 5
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 6
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 7
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 8
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 9
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 11
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 12
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Scherzo No. 2 in B-Flat Minor, Op. 31: Presto - Sostenuto - Pt. 13
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12 Etudes, Op. 25: No. 9 in G-Flat Major "Butterfly Wings"
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3 Waltzes, Op. 64: Waltz No. 6 In D Flat, Op. 64 No. 1 "Minute" - Edit
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24 Préludes, Op. 28 - Arr. Hirschfelder: Prélude No. 15 in D flat, Op. 28, No. 15 - "Raindrop"
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'Fantasie Impromptu' and other works by Chopin
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2e7ea1c0cc908e1ae6be7e1f17083d3fb2f9738954f5528580ef0e80d10e82. 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/DEF050500021 — a six-check JSON result.
Mazurkas, Op. 68: 4. Andantino In F Minor
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a54a6bb14f25525ebcbd8b126ad72acb3e21b98d9607fa0b0f8e1f5387e406. 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/DEF055909960 — a six-check JSON result.
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12 Études, Op. 10: No. 3 in E Major "Tristesse" - Pt. 1
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12 Etudes, Op. 25: No. 1 in A-Flat Major "Harp Study" - Pt.1
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12 Etudes, Op. 25: No. 11 in A Minor "Winter Wind" - Pt. 1
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Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 3
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12 Études, Op. 25: No. 2 in F Minor "The Bees"
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12 Etudes, Op. 10: No. 5 In G Flat "Black Keys"
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12 Etudes, Op. 10: No. 4 In C Sharp Minor
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Mazurka No. 26 In C Sharp Minor Op. 41 No. 4
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57bc4748f6826fd3bbbbfb3f9d59bf54db854733696ced611af445cfbe0e2fe. 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/DEF056730730 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29530e018991179bce3df6084812f247d29b4c19a6280706711f4486cd1bb7c7. 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/DEF056730740 — a six-check JSON result.
12 Etudes, Op. 10: No. 6 In E Flat Minor
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Mazurka No. 19 in B Minor, Op. 30 No. 2: Allegretto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21cbd47dd1d74e2fa6054c7cc296f836a69dfea830fddaa561fb91619b7a284. 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/DEF057230008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcf9de3202b40bd735b7483236d7758d5a4c6578d24b7bca314f0394570cf14. 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/DEF057230011 — a six-check JSON result.
12 Études, Op. 25: No. 5 in E Minor "Wrong Note"
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Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 1
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3efdbec4b9150d1d0c13a719ff7a05438ed87d3dcc89d4bb423f52b0db205ca. 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/DEF057530504 — a six-check JSON result.
24 Préludes, Op. 28: No. 15 in D-Flat Major : Sostenuto - Pt. 2
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12 Etudes, Op. 10: No. 10 in A-Flat Major
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Nocturne No. 2 in E-Flat Major, Op. 9 No. 2
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d4c7aa05c6018291ee99f414ee449701c50eeb99124619d2a4f84b765f74d0. 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/DEF059004351 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac8f6b83d3a124632aa7c96a700aa6fd7fa3b0b5292ae0e3037fb380939c868. 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/DEF059004371 — a six-check JSON result.
'January': A Calendar of Classics: Chopin
12 Etudes, Op. 10: No. 2 In A Minor - "Chromatique"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535c8ec4e939a5063351c07e4e28ba3d22abf50086a2480b8d47e250dea5abd6. 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/DEF055634211 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60ddfd89b60dbd434fb46213c16ef3e7a3ed98c9e58c16d76df6d49c4e1d3ca. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM70600732 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ceab27a65e367e2e02bf108b869405b92b72fbbcb8eb548aec70a4362b1d9e. 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/KRUM71100097 — a six-check JSON result.
12 Études, Op. 10: No. 12 in C Minor "Revolutionary" - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb407c2b9992a1dd709d778d0b36a9e6e6a879c2b2e792223ea2d1d56ba3cd8e0. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72201078 — a six-check JSON result.
12 Études, Op. 10: No. 5 in G-Flat Major "Black Keys" - Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8278e7da06d48d6833e41079e77ca3462c5e1cc0dfa2ec832881d958635712c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059603332 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6163055bd38c57c85d39516ff3d64b38a23fd32d82122e6c0c561b7acd43adb2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEF050702090 — a six-check JSON result.
Etude No. 3 In E Major, Op. 10-3, "Chanson de l'adieu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d13695d0425b1c4c0de6886632740e372e434a250b6daaccb23ce188ab2560. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM70700570 — a six-check JSON result.
Mazurka No. 19 in B Minor, Op. 30 No. 2: Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b079542dead747aa595e3ad98e75a1873a426f5e00073130e2af4b2f543c4c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703020 — a six-check JSON result.
Ecossaise No. 2 in G Major, Op. 72 No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44991608282561c93855afb934bd5f78b6fc39354f98877e29a03f6920eb15bb. 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/DEF058703012 — a six-check JSON result.
Mazurka No. 47 in A Minor, Op. 67 No. 4: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca1df4c24b8bc839355bb12f364986ce03b8a745f161a634ea95e8b6ecc983e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703061 — a six-check JSON result.
Waltz No. 1 in E-Flat Major, Op. 18 "Grande valse brillante" - Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38046794b3428e97070b9a33940a63c7b39c17d10653aec0ad192252a24849c5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEF059031921 — a six-check JSON result.
Waltz No. 1 in E-Flat Major, Op. 18 "Grande valse brillante" - Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8239ce051078024c9689fbb6e400d548d24f609e4cef80c7e3dfd301a3a8598f. 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/DEF059031922 — a six-check JSON result.
Waltz No. 1 in E-Flat Major, Op. 18 "Grande valse brillante" - Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25915afa9ed1180a2330ab14eb58cb2138a2c41d0e39e93e5d892fdc940f1f3. 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/DEF059031923 — a six-check JSON result.
Waltz No. 1 in E-Flat Major, Op. 18 "Grande valse brillante" - Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5799bfaa2f3baa35b73e1f37b900151be788f287c73022b9817f41f3fbf9d7. 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/DEF059031924 — a six-check JSON result.
Waltz No. 1 in E-Flat Major, Op. 18 "Grande valse brillante" - Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4355aadcf27fc473bd98029dfc7de2dc9f8ce4c3acef1c993d76a78592e692f5. 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/DEF059031925 — a six-check JSON result.
Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6e8d96967e73daeaf754551f5b98c0092e19a797f11accaf447710e69ee167. 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/DEF059031931 — a six-check JSON result.
Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb49abb708e90588f8b59561205032864ee199fe182b28ad3fc1c32cff74b90. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEF059031932 — a six-check JSON result.
Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2c7d875c6ae7a894db979da45c53c788d6365400825a0c88bf62314e6f32f9. 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/DEF059031933 — a six-check JSON result.
Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9e1ffdab345387a0a911475b37b5e51a38c6940b026cf2024732eeaf3d1f35. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEF059031934 — a six-check JSON result.
Waltz No. 15 in E Major, Op. posth.: Tempo di Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fe4cc50d09affc874e10bac70ebeaedb18d315e48ffa62c535e80f3e073c2d. 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/DEF055910020 — a six-check JSON result.
Serenade in C Major, K. 648 "A Very Little Night Music" (Original Version for 2 Violins & Bass): VI. Menuet [II] – Trio - World Premiere Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85aefce3329ad05d52143a21d15b6855a20cdab56a861cb7123b2cf3e3c9127. 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/DEN962402376 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa533e53856f6d31d7024d50519ad3e51639a55fe764f8d398c90949b63085120. 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/DEF059004362 — a six-check JSON result.
3 Ecossaises, Op. 72 No. 3: No. 2 in G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575cfe2bc26c006183762b6428014b09c977df1a4230681faceb326a74d4c210. 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/DEF059603312 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4162046f34c75f20a3ea1af0fa773640c4a4be49c84d78e0422011f509346f09. 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/DEF059902580 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02adada2839d36908752ad333e05c7cd40419ef87ee8eabd5b7765a9c3fdd17f. 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/DEF059103203 — a six-check JSON result.
Les Sylphides (Orch. Douglas): III. Waltz No. 11 in G Major, Op. 70 No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd6babb48ba04d1670d53b8f0adf4255e9a6b2ebec521d3aa11588e50bfa8aa. 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/DEF056102253 — a six-check JSON result.
3 Ecossaises, Op. 72 No. 3: No. 1 in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76afa3dd9cb0761a6d57e2a2eda14221bc0d529d7509efeb7b4d69ad17c28b49. 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/DEF059603311 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef10353e67605c6bbca43c73a9d9ef036fd8a9e2030ba6b3417f1046e49d6ca1. 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/DEF059902340 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e8d74663a7961d59935ac81a82e8c36c4a8efb27580b1506a822a641f0434. 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/DEF059902540 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3500b8ba51f28f770de0bb21c9ac75bd4706ea4d842ea2093ee6078077c4b2. 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/DEF055510270 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b340655907b7a74a17d5638e6494677a8c8061aa250e55aa6a7e8950aa86f8. 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/DEF055590203 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e91efe62930be3e16c119675301bc5e0840e47781986097ae680b10d557eef5. 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/DEF055590206 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423b1239a8677deda4a2d7f5b0c6c8cd543892d5758146a265260ba5ad8c83bc. 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/DEF055590209 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcf04c8162205ea7cbbccddae17a80796533461e6493a08249c28dbc9a08e1c. 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/DEF055610500 — a six-check JSON result.
Impromptu No. 2 in F-Sharp Major, Op. 36
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed9b88ac103381da40a67e0460a509523554a40c037d949fd066aed1b1e0fc1. 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/DEF055610510 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efec3d58dff8ad2e4eea9816655ecef12129819e75f6f160229b927d5de8324. 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/DEF055610520 — a six-check JSON result.
Impromptu No. 4 in C-Sharp Minor, Op. 66 "Fantaisie-Impromptu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde65e55e22eabcf76cb40b81f05d909b82c94bc2e76170fe2ff04a79f0adda0b. 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/DEF055610530 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbbd35534c4dca818f9b8953f1d4fd2b0fa25e9751e9209acf9e3ed2e97d559. 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/ITUM71800095 — a six-check JSON result.
Visions Fugitives, Op. 22: 7. Pittoresco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a021bba1c18738f2c8b535900895e40a84d89df9a3657bec4744dd82146e6a0. 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/GBF079442807 — a six-check JSON result.
Swan Lake, Op. 20, TH.12 / Act 1: No. 7 Sujet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7059ca73d9b84f30764b3bd37b16fa5334de8ac3abd24fc736cf075a78c052. 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/GBF077540816 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641d2cfdd04c6032d49a9e388a52b8617afa6fb4ab89c371ade5a2955a225b4d. 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/FRZ399301120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf4b8fb55973b2a156a22c46ecd5628001f62f75dbfded568fb64f1cee4819a. 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/GBBBA1800012 — a six-check JSON result.
Pictures at an Exhibition (Orch. by Maurice Ravel): 3. Promenade. Moderato commodo assai e con delicatezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd985b54e9b6807534327b29bc0c2a08de1677a22e3b5fee832717dbe9fd62c30. 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/NLA507400455 — a six-check JSON result.
The Nutcracker (Suite), Op. 71a, TH 35: 2b. Dance of the Sugar-Plum Fairy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4061c56adafa29854c1b02e9277a068c128940ea3560712396ace4c433746ba8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077912123 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071a107d4f08d35996ccdd1d33f2fba77bdeb5b0602d677cc7b0dd05ae51b3f8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056530105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec364be7492e4f0e6a019a24b7bd4f59dcdd0b42d3975a3a5d3d6453ded200f. 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/DEF056530106 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877206a2d6c8194defbe5680024c6110112e1de648ae7d04ae78d7e0f922a29. 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/JPPO01016780 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b611eed3d85676a0babb38e2b3089b5700cd667b3c1fa1c204f5952539cf0b1. 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/ITUM70600729 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15e55e225f434b887088dad29bfb08482fcbd44648e527c38491f9ef579058e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059232004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41764af1800adec251cf2bf39060b6adfd2ff2b96384fd9e1a2fbd4b6957b756. 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/DEF059232023 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6c4735d21e75679cbf6dbb17228417a09a1da8c6b1c8fff5acc98954e171b9. 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/GBF077910175 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071fb5117b43b833a7d77b0582c0d5aa020ba3b7df2f8d9ef1e886d8beb118cb. 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/GBF078110193 — a six-check JSON result.
Symphony No. 48 in D, K.120: 2. Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcc346e917b43f5b6807a2ab60aa220c170975ad2dd55bcc1ce43cd75e7d88b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078110192 — a six-check JSON result.
12 Etudes, Op. 25: No. 9 in G Flat, "Butterfly Wings"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcae28d480a2fe8a90faac307955fa0d232322381bd890728144d34f8d85bb6b. 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/KRUM71100114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee3ca427ba1a940c014f6551739b4b1448c9964265b277636d567a201009265. 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/DEF055930210 — a six-check JSON result.
Abendlied, Op. 85 No. 12 (Arr. Grosvenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe69905e2357cac62e5b153553e5468f5fa977b3ff940e59bcbb895693629334. 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/GBBBC2201474 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cca490acc5c06a3656375ea31d50be9f0f0cb98daacf2afa9c7228a74aab1c5. 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/ITB282100020 — a six-check JSON result.