Peter Ludwig Gülke (born 29 April 1934) is a German conductor and musicologist. Biography Born in Weimar, Gülke studied cello and musicology at the Hochschule für Musik Franz Liszt, Weimar. He comp
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 0x663fa42ad9d34ecc11be02bb2037981adf84c87e56c7db55c96e012ebac4729b. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e401fbc-49e8-40d3-a344-63cf84ff8070.json and https://artists.proofprofile.net/proofs/artist/2e401fbc-49e8-40d3-a344-63cf84ff8070.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ludwig Guttler And Peter Gulke Discuss Johann Sebastian Bach's Christmas Oratorio
Composers In Exile - Zemlinsky, A. Von / Schreker, F. / Schulhoff, E. / Ullmann, V. / Hindemith, P. / Schoenberg, A. / Milhaud, D.
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 0x144cc490cc6615a5d71eb84fd77134e45a833031c9a8ff93a378b569fc4c1b67. 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/US2TL0943804.
Duo for Violin and Cello: II. Zingaresca: Allegro giocoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9644b8ffaadab9d564a8e71f56ea7da8b5fe04719a1b94f19d6fda51a41945. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US2TL0943806.
String Quartet No. 1, Op. 5: I. Rhythmique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d40f1d0fe741e14cff3921e020cefb72ede2f0ad01bea6c552cccb587238398. 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/US2TL0943819.
String Quartet No. 1, Op. 5: II. Intime, contenu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48b9e217f7398903b037398dfb7b0c5161df313b747d93ccd4a2384fc96b2e6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US2TL0943820.
String Quartet No. 1, Op. 5: III. Grave, soutenu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a72fbe81980cfdae1d86a015af8f09f50cb9e04ab75f406ed11df7d3737387. 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/US2TL0943821.
Kleine Sinfonie, Op. 29: I. Thema mit Variationen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9241d673635c0d57c6fa275d7d8cdecb6d2cc5fb0660b611e63b11e9fc5afa4d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US2TL0943823.
Wolf, E.W.: Symphonies in E Minor / G Major / Destouches, F.S. Von: Symphony in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244d59394a10d98da4b0f68e1bf58e667c57549e14ffc3af839e607ca5a3f11b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DES380001522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ec12fcdb988019831c887e5d04b483d64ade6376c280bfd5985b62c09e268. 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/DES380001530.
Mozart in the Jungle - Season 4 (Music from the Prime Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845d7359b081b59776e2cd5c81b03dbcb055d17cc4a5d3bb01f3a5c8381dc701. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DES380001523.