The Polish Radio Symphony Orchestra () is a Polish radio orchestra founded in 1945 in Warsaw by Stefan Rachoń. Initially, the orchestra made records only for Polish radio and television. In 1970, the
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 0x8ef1c6a34115985b923a26a8030a02e57ebecece901f1561038ac69583dffad7. 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/e6023130-0766-4e6a-8a24-1e26d41a8dc0.json and https://artists.proofprofile.net/proofs/artist/e6023130-0766-4e6a-8a24-1e26d41a8dc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x73ac6525ab27b3ff0e84b5efd847613ef7864dc57e4f214105dcf95739947ed0. 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/DEA891301130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebc222f066c213e9917b8ff52128ee69816f19433bf62419cac4ec99ce781b2. 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/DEA891301131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4add041e3a6433a39e0f18e3e06591e9f90b76716e157ae2f0ce0f9f6ca94798. 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/DEA891301132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aadd1e26a8d4618246148ac5707283b8f0639a120d7610b2ee5801b9b016ea5. 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/DEA891301133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e2df2b213085c790f9043e9d545def516d76b0f38c888b7a5867721636b5f5. 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/DEA891301134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f49bf1d015311a2bcca2949ce59b6ca92481cb314068a1ed7bc2a2234974540. 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/DEA891301135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdec78c0fa1f39b3ab4bc000e156213895645c16ee68aea68a71c793924fb9c1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA891301136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653c7ce255baec5811a86e63b9c8be53240130dafff0d86af7be3f6642a97c2b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA891301137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a96a73e0bea5ced7495acdda969d71b5b4d44d9237a70aede4a7248c328f55. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA891301138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a5ecd5c8bbfb5689d332849efcee95cb50af53a86f8dc80a99f81581aa896c. 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/DEA891301139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008750a76f5b202e9f5294490b3a797e44f1bb4e653455e7308ea40fd91f0b38. 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/DEA891301140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcb8d21f5cdeb6d9ccc3ab2656f7bcf4e41755ddcf314c4ed4033697e7dffcf. 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/PLA390918916.
K. Meyer: Piano Concerto, Op. 46 & Symphony No. 6, Op. 57 "Polish"
Messa da Requiem: II. Sequence: No. 1, Dies irae
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Swan Lake, Op. 20, Act II: No. 10, Scène
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d44e36e1854dab3295d4a52a115201650dabc70cf321e9d39f7374f55c3d9d4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1006501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb784fdc030d11d4d70976f7a1c2060527d9ac5c58a3d7f8526bec30e268715. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1006502.
Bach: Brandenburg Concerto No.3 I mov. allegro
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Borodin: Polovtsian Dance from Prine Igor
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Tchaikovsky: Dance of the Sugar Plum Fairy
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Saint-Saëns: Carnival of the animals: The Aquarium
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9a84767e8ef6e313709f33f52bf87fa4d33a9819085263c6b65c5d8b214c1b. 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/SEVGT1006508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85707f797c435f8ce71e58cc46852da02fa579115d9e98b8a5969e56c4fe782b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1006510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f8cb2edbae10e1e8ee6a15d2b7933aef9f25bf7ae78cd92bb922c6277fbe1a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1006512.
Albinioni: Adagio for Strings in G Minor
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fbb9c3bd49e1944f2cf7e89a755e955127c9a4d4cf62a447b80d2ad4e9d650. 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/SEVGT1006518.
Saint-Saëns: Carnival of the Animals: The Swan
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Operatic Recital: Alfred Orda (1963-1977)
Concerto for Trumpet in C Minor, Op. 42: I. Andante
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Trumpet and Orchestra Concerto in A-Flat Major: I. Andante
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Trumpet and Orchestra Concerto in A-Flat Major: II. Allegro energico
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Trumpet and Orchestra Concerto in A-Flat Major: III. Meno mosso
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Trumpet and Orchestra Concerto in A-Flat Major: IV. Allegro
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Concerto for Trumpet and Symphonic Orchestra: I. Andante - Allegro - Piu Mosso
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Concerto for Trumpet and Symphonic Orchestra: II. Adagio
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Concerto for Trumpet and Symphonic Orchestra: III. Più Mosso
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Harp Concerto in B-Flat Major, HWV 294: I. Andante - Allegro
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Bach, JS: Piano Concerto No. 1 in D Minor, BWV 1052: I. Allegro
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Harp Concerto in B-Flat Major, HWV 294: II. Larghetto
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Bach, JS: Piano Concerto No. 1 in D Minor, BWV 1052: II. Adagio
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Bach, JS: Piano Concerto No. 1 in D Minor, BWV 1052: III. Allegro
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Bacewicz: Violin Concertos Nos. 2, 3 & 4
Lipinski: Violin Concerto No. 1, Rondo alla polacca & Brawurowe wariacje
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Concerto Classico: I. Allegro ben ritmico
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Composer's Concert Live: Krzysztof Herdzin
Penderecki: Piano Concerto, "Resurrection"
Thierry Gervais Concertos (Grands concertos pour trompette et orchestre)
Eugene Onegin, Op. 24: Eugene Onegin, Op. 24: Act 1, Scene 2, No. 18 "Vy mne pisali" [Onegin]
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Čertova stěna (The Devil’s Wall), JB 1:122: Čertova stěna (The Devil’s Wall), JB 1:122: Act 1, "Jen Jediana" [Vok]
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Poland Abroad, Vol. 4 - Opera and Ballet
Ryu, Jeajoon: Sinfonia Da Requiem / Violin Concerto No. 1
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Ludwig Van Beethoven: Symphony No. 5 In C Minor, Op 67
Mozart, Glière, Zabel: Concertos for Harp & Orchestra
Peter Mieg: Sinfonie – Rondeau Symphonique – Combray
Symphony No. 9 in D Minor, Op. 125: III. Adagio molto e cantabile
Requiem in D Minor, K. 626: Rex Tremendae
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Penderecki: Anaklasis, for 42 Strings and Percussion
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Threnody to the Victims of Hiroshima (1959 - 61) - 1994 Remastered Version
Polish National Radio Symphony Orchestra
Nationales Polnisches Rundfunksinfonieorchester
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De Natura Sonoris No. 1 - 1994 Remastered Version
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De Natura Sonoris No. 2 - 1994 Remastered Version
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The Dream of Jacob - 1994 Remastered Version
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De Natura Sonoris No. 2 - 1994 Digital Remaster
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