thumb|300px|right|Budapest Philharmonic Orchestra, Conductor István Kerner The Budapest Philharmonic Orchestra (Hungarian: Budapesti Filharmóniai Társaság Zenekara) is Hungary's oldest extant orchestr
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 0x09eec426cb2ad080a4a06a3b665ac5f0a5e76fc25a7a7d90f272355f04153271. 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/7ca1052e-236a-430e-b37a-1c23296e197b.json and https://artists.proofprofile.net/proofs/artist/7ca1052e-236a-430e-b37a-1c23296e197b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bartok: Viola Concerto / 2 Pictures, Bb 59
Pitti, Katalin: Famous Italian Opera Arias
Vajda: Mario Es A Varazslo (Mario and the Magician)
Dvořák: Symphony No. 9 "From the New World" & Slavonic Dances Nos. 1 & 3
Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": I. Adagio - Allegro molto
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 0xf5a858953226fda273159b527179a8383f8f9ef12185c359bf0d2ecc45607970. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1311701.
Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": II. Largo
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Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": III. Scherzo. Molto vivace
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Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": IV. Allegro con fuoco
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Slavonic Dances, Op. 46, B. 83: No. 3, Polka
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings upon Arrival in the Country. Allegro ma non troppo
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Symphony No. 6 in F Major, Op. 68 "Pastoral": III. Merry Gathering of Country Folk. Allegro
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Symphony No. 6 in F Major, Op. 68 "Pastoral": IV. Thunderstorm. Allegro
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Symphony No. 6 in F Major, Op. 68 "Pastoral": V. Shepherd's Song. Happy and Thankful Feelings After the Storm. Allegretto
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Bartok: The Miraculous Mandarin, Two Portraits & Two Pictures
Ravel: Pavance - Bolero - Rapsodie Espagnole - Ma Mere L'oye
M. Haydn: Serenade - Symphony in D Major
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c54990d0ef580f6ac6c7862f4f4c77c7752c934003d9ca0574213410d0a91. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HUA253145502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b85f24e7a2b852fdbeb16f88c3bd12a2f160a6149fcb9a5d2dff42df6a2b64. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb683a862f3a3587d0a0774043dd8d7e57b150d24a03395f968deed329fa5520d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecbdd0f8cc6fbcedc055c0a7483916120f3c1b2c98ca64a1eb9c5949c242c00. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eb1c6e00d7bf8fac181f019e1af7b5f37b06bf1f14af37c32be1967a28048a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eaa49b5bc46b87eedc41d92a035bd076528cea958a5eaed1b2283ad9a128d8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993c989a9616355d342693f5c002bdfc006c07ab33f84c9faa8c2ebee825eb8a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253145510.
Mozart: Missa brevis - Vesperae solennes de Confessore - Epistle Sonata
Mozart: Clarinet Quintet - Clarinet Concerto
Erkin: Sinfonia Concertante for Piano and Orchestra - Symphony No. 2 - Köcekce-Dance Rhapsody
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Strauss Ii, J.: Overtures / Waltzes / Polkas
Seymour, Patricia: Opera Arias - Kalman, E. / Erkel, F. / Brahms, J. / Delibes, L. / Strauss I / Strauss Ii
Mendelssohn: Symphony No. 3 "Scottish" / The Hebrides
Handel: Music for the Royal Fireworks / Overtures From the Opera Rodrigo, Ariodante and Atalanta
Erkel: Bank Ban (Excerpts) / Hunyadi Laszlo (Excerpts)
Dvorak: Symphony No. 9, "From the New World"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1e5fbfaf54a5221c0123e00769a4abacea18ac569afbe4adf7a70b801bd1d1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTHM0900742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2f99924cd70a8c7e109a8df310c088d032ffca6276ea911d4ebac150ef2d13. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTHM0900749.
Brahms: Piano Concerto No. 1 in D Minor, Op. 15, Weber: Overture to der Freischütz, Op.77
Tchaikovsky: Piano Concerto No. 1 - Mozart: Piano Concerto No. 27
Rico Saccani and the Budapest Philharmonic Orchestra Perform Bizet, Lalo, & Ravel
A Midsummer Night's Dream, Op. 61, Act II: Intermezzo (From "A Midsummer Night's Sex Comedy")
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Die Walküre, WWV 86b, Act III: Ride of the Valkyries
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Cavalleria rusticana: Intermezzo Sinfonico
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Vesperae solennes de confessore, K. 339: Laudate Dominum
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Hunyadi Laszlo: Act I: Scene and Chorus: Megolve batyam … - Meghalt a cselszovo … (Kiraly, Chorus)
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Classical Music for Learning: Great Masterpieces to Improve Studying and Mental Focus
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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