Vladimír Válek (2 September 1935 – 16 February 2025) was a Czech conductor and educator, best known for leading the Prague Radio Symphony Orchestra from 1985 to 2011. He transformed the radio 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e411ae4a11e4855ed62dcb6f944dfc6f5480a6d4e99c53bb95f481520bfb444. 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/69997200-5d3c-4f64-b9c1-ae31e84cf974.json and https://artists.proofprofile.net/proofs/artist/69997200-5d3c-4f64-b9c1-ae31e84cf974.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feld: Complete Works for Flute and Orchestra
Matěj: Concerto for Trumpet, French Horn and Trombone - Jirásek: Partita
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a9647afa1aae85bf92a74da72ce425f7cabbf5273cd420f5866da8de1c5d5a. 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/QM4TW1500616.
Trojan: Prince Bayaya, Tales for Accordion and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5701a7d159e76b5ccb712edf5ca2762b1de58bd0b98c6ebed5974a4bb1d3ad. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CZA168801514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd06d239a7a04b74ba8270267010efc70ff348776479f7b14ad4afd8f181d867. 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/CZA168807514.
Ludwig Van Beethoven: Symphony NO. 7 (Live)
Ludwig Van Beethoven: Symphony NO. 6 “Pastoral Symphony”
Ludwig Van Beethoven: Symphony NO. 5 “Fate Symphony” (Live)
Ludwig Van Beethoven: Symphony NO. 4 & 8
Ludwig Van Beethoven: Symphony NO. 3 “Eroica” (Live)
Antonín Dvořák: Symfonie Č. 9 e moll "Z Nového světa, Novosvětská" B178
Symfonie Č. 9 e moll "Z Nového světa, Novosvětská", Op. 95: I. Adagio. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357eea5018f8d1847bc62438caad288c9cfc83ff5378b31427f498fc0b929aa8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZD941800558.
Symfonie Č. 9 e moll "Z Nového světa, Novosvětská", Op. 95: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc703707c36c1f1332b2ae7b25727555bc595d315348017e88a87b97e12c4f95b. 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/CZD941800559.
Symfonie Č. 9 e moll "Z Nového světa, Novosvětská", Op. 95: IV. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28f12837708f0406dae8ed398bf2b47c349a476cc503459dfba1393cbc80f03. 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/CZD941800561.
Symfonie Č. 9 e moll "Z Nového světa, Novosvětská", Op. 95: III. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beff01dbfa7f47c71a7acf3fe611fae7d21fb846c2c5c58a6032f1f6899692c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:11:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZD941800560.
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
Antonín Dvořák: Symfonie Č. 8 G dur "Anglická", B163
Antonín Dvořák: Symfonie Č. 6 D dur, B112
Antonín Dvořák: Symfonie Č. 4 d moll, B41
Antonín Dvořák: Symfonie Č. 3 Es dur, B34
Antonín Dvořák: Symfonie Č. 2 B dur, B12
Antonín Dvořák: Symfonie Č. 1 c moll "Zlonické zvony"
Bláha, Hurník, Odstrčil: Týden soudobé tvorby, 1978
Glazunov: Saxophone Concerto - Fried: Guernica, Clarinet Concerto
Con Moto: Modern Works for Orchestra, Vol. 1
March for the Shakespeare Festival, Op. 20, JB 1:90
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d02b51a95e162e541b4a7fa5c61c76be21df7c5c9d2e394ce92c29676a02c27. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CZA160704320.
Symphony No. 1 in G Minor, Op. 13, TH 24 "Winter Dreams": I. Allegro tranquillo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef74fbe054dc92838ec19d5c2ed613f2ec7c4bed57a240f0b998dbac26fe6fc6. 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/CZA160508010.
Barati: Symphony No. 1 / Chant of Darkness / Chant of Light
Rimsky-Korsakov: Capriccio Espagnol, Scheherazade
Spanish Capriccio in A Major, Op. 34: I. Alborada. Vivo e strepitoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb8cd3489d9a3126d9ee3a942d3b993cca024337d8262cd8891a329de2e6668. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160101100.
Spanish Capriccio in A Major, Op. 34: II. Variazioni. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3134c43f278063384d82f729adf61b6baa65f151701a68af25697486ac40c5fc. 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/CZA160102100.
Spanish Capriccio in A Major, Op. 34: III. Alborada. Vivo e strepitoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a890cf3548cf843e8e2723f8d9665a4c7440fdbac71facdc6dd73df3ce09c3e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160103100.
Spanish Capriccio in A Major, Op. 34: IV. Scena e canto gitano. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3369ff1312b9064efe378120297da3f400ffc6cbe7e65a5328260000a80aa3d5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA160104100.
Spanish Capriccio in A Major, Op. 34: V. Fandango asturiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f90821a68763f1604c30c7e71b17cc24ad77997002e576ec0b47b46caacd42d. 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/CZA160105100.
Scheherazade, Op. 35: I. The Sea and Sinbad´s Ship. Largo maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942d82bedcbe29910a4d12671c9685d00f7a394c7fbcdf8a78fef8dc24fa380b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA160101099.
Scheherazade, Op. 35: III. Love Between the Tsarevich and the Princess. Andantino quasi allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ee17ece7cc6a02e60b40c069859f936be3832be84516f8e24313534903554d. 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/CZA160103099.
Scheherazade, Op. 35: II. The Tsarevich Calendar. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076d8cf4e617f0f769e611812947c4e7caf07a4a083cdf9ce38866b340b1edbe. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/CZA160102099.
Scheherazade, Op. 35: IV. Festival in Baghdad. Shipwreck. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecfaa899e42613394d801648b0416ed5fc03d4419f327478e94d7c137ae3a56. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160104099.
Sbor Armádního uměleckého souboru Víta Nejedlého
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e7a7044c46fc333fb00937803888ebb936a3f7b4cdfb7df98b11262915367c. 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/CZA167300354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8329c2154bb6ce7eed01d30e2bc0ac8fb0fd2f7cb758900b45aa1a37a5fcde38. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e55ca02f224d1475d82aeaba7166858f0d77173fa58859d872f19a36904a557. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300347.