Peter Ritzen (born 21 January 1956) is a Flemish pianist composer and conductor. Life and career Peter Ritzen studied piano and chamber music at the Royal Conservatory of his native city Ghent. Hi
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 0x1505462e42ee4c16171afcaec5060bd984a543064322eb5add695302e0a0796b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1c08bbc-d9e3-48e4-bcde-bdfa194b4ff7.json and https://artists.proofprofile.net/proofs/artist/d1c08bbc-d9e3-48e4-bcde-bdfa194b4ff7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wang, Y.: Symphony No. 2, The War of Resistance Against Japan
RITZEN: Chinese Requiem / Chinese Violin Rhapsody
Leschetizky: Piano Concerto / Contes De Jeunesse Suite
Contes de Jeunesse, Op. 46: V. Toccata (Hommage a Czerny)
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 0x3143b17d96bdcbe60c7721c68fe08064d11567fec7405b133a694618ced70f45. 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/HKI199525907.
Liszt: Piano Concertos Nos. 1 & 2 (Version for 2 Pianos) - Ritzen: Improvisation on Et incarnatus est
Franck: Piano Works: Prelude Choral et Fuge, Sonata & Prelude Aria et Final
Two Legends: I. St Francis Of Assisi, Sermon To The Birds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315a5bedc86a3cd8dd8942372570c2bba4b2d05f5e8332c6721d926ea591bd0d. 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/TWP011319645.
Études d’Exécution Transcendente: No. 2. Molto Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75788775702d4e9bddf39b200fccb740169fb1c59990e1d39235074098c831c. 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/TWP011319651.
3 Notturnos, Liebesträume: III. 'O Lieb..'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9143981f6ded940e86c01314ed40a7d9431e8a80ed5f757a0a43c54343dc4d3b. 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/TWP011319649.
Études d’Exécution Transcendente: No.6. Vision
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7604957ce1db2c0dfe4905e82424d27a5317d4eb2840727e84e042a9fdaa7c4a. 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/TWP011319655.
Études d’Exécution Transcendente: No. 8. Wilde Jagd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb051f25c49b8d73bc67134aa79ff94f133b7ba4d7b78ad741a462dfe0b6ef89. 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/TWP011319657.
Études d’Exécution Transcendente: No. 9. Ricordanza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57dee649eff1b088155cba5653ba871dbe9a15ef332651c695a23e4590042ce. 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/TWP011319658.
Études d’Exécution Transcendente: No. 12. Chasse Neige
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f307825c1a22dc8f91a7bdbdf0bb5f3b7e6e845eb04725a31f278acf5d258f7. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298e3e943b6e72e09dd42accc203b16b7b8f15560680ac8c1e1eeaed2f90f7e2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TWP011319644.
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
Études d’Exécution Transcendente: No. 1. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439b7221dc9a163ae8e24fc926f051b42470abed3e92186a077244ab5e852d3a. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TWP011319650.
Études d’Exécution Transcendente: No. 3. Paysage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95763877f7c108d6392c6bec307bfcea3926bd0e06329c8f5f5123dda5341a15. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319652.
3 Notturnos, Liebesträume: I. 'Hohe Liebe'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c00d25b9207cc5e39a7d1f2096be02107e20e825dc4b596eb3981e6ea676015. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TWP011319647.
Études d’Exécution Transcendente: No. 4. Mazeppa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5208f776f46ce3f339d4bfd2c548c2e565e165df98afefa39226af6fdba735ad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319653.
3 Notturnos Liebesträume: II. 'Seliger Tod'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b7694554dd41faa4e8946b75df0457902c0c6238aac53bf161e4cc7e1f8ea6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319648.
Études d’Exécution Transcendente: No. 10. Appassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447b8ba66c6913c6a9c7d1a1505de41253b78cc9d67b07e1603d973b1c7f0f25. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319659.
Études d’Exécution Transcendente: No. 11. Harmonies Du Soir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a844c5a1f2e2714369bfdd65ad098e931b0cc942ad36749ba198dc4239244d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWP011319660.
Award Winning Film Themes (Transcriptions on famous Movie Themes by Peter Ritzen)
Peter Ritzen: Reminiscence of a Legendary Concert