Péter Nagy or Peter Nagy may refer to: Peter Nagy (artist) (born 1959), American artist and gallery owner in India Peter Nagy (canoeist) (born 1964), Slovak slalom canoeist Péter Nagy (footballer) (b
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 0xd540411c2488fb572a63c6ec8177020841e49a1a47173122475bc6a1900c4981. 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/58b815bb-a32a-408e-a870-6f62ce1374cb.json and https://artists.proofprofile.net/proofs/artist/58b815bb-a32a-408e-a870-6f62ce1374cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: Opus 38 & 99 (Sonatas for Piano and Cello)
The Great Book of Flute Sonatas, Vol. 5: Soviet & Hungarian Works
The Great Book of Flute Sonatas, Vol. 4: Impressionism
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee2c98912a4448506382979ef42e83b4ff521bbefc4ea378af125d3fb140fd3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEL0096050.
Mendelssohn: Songs Without Words (Selection)
Mendelssohn: Songs Without Words, Vol. 2
Mendelssohn, Felix: Songs Without Words, Vol. 1
21 Hungarian Dances, WoO 1: Hungarian Dance No. 5
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Rhapsody on a Theme of Paganini, Op. 43: Variation 18: Andante cantabile
Polish National Radio Symphony Orchestra
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Organ Symphony No. 5 in F minor, Op. 42, No. 1: Organ Symphony No. 5: Toccata
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Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
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12 Variations on Ah, vous dirai-je, maman, K. 265
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Power to the Women: The Best of Female Classical Composers
Piano Favourites for Young People, Vol. 2
Kleine Blumen (Little Flowers), Op. 205: No. 11, "Sea Pink"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1a52e9aab77116af1d5f0f352b5db2e529a1807fb98051f1f155d032ad3124. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc5129171d7ecfb1ca49830ee51f2b07b12bcbe52c38b7fe0a6ead8f294db38. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78be977e0adaa43adf7fa021cab42ce24f1f2ee2be292924b009e1679982f7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126850385f8623c1e0464e019dfeb98b96382bdb07c1fc96ac3f2b97a4c3458f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1140cec911cc147919c0349f85b68e9fd31aceae9f12d4e0e22aeacc1d704d2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa9fad188ccbeb702f009e0a38e47597cd6feb2324751a29c84ce9b977dd9ea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0559d9c21751de82656e9c1c19aac6bd177b8bc9fa2f5e49d0f6308491947ef6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f298621cf74e1a358d49253298063486a890d0cdf4150bd45b89c20b5e96a6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acb2255559d88ec557c7d93dbdf8be28ba8d061ecc9121853952b5895806c82. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191256412.
Liebestraume, S541/R211: No. 3. Nocturne in A-Flat Major
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The Maiden's Prayer - Leaves From Grandmother's Piano Album
Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito (opening)
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6 Morceaux, Op. 19: IV. Nocturne in C-Sharp Minor: Andante sentimentale
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ca455e869a805ba467d0cf52c521acec9a0af2a55a4aab72e33f571c9af1a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882581480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cfb1e9516bbe472b32896bf1e9fd17e8840b2c51fdb261d8b98e445835ca66. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882581479.
Classical Music Start-Up Kit, Vol. 2: 1825-1945
1812 Festival Overture, Op. 49: 1812 Overture, Op. 49
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Humoresques de concert, Op. 14: Menuet celebre in G Major
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615d7e4fb0a1d36b0f6b65cdb2658f709d4ce6c1b8e5f2cb6c6c70004e013a61. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199295117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171c431b600886a36661022bb119cc1878d7db6db1f625fad364122b8e9b0f6b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199295118.
Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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Fantasy-Impromptu in C-Sharp Minor, Op. 66
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Clair De Lune - Classical Favourites for Relaxing and Dreaming
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