Otto Ackermann may refer to: Otto Ackermann (painter) (1872–1953), German painter Otto Ackermann (conductor) (1909–1960), Romanian conductor See also Ackermann (surname)
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 0x5dc50cbdb31d10f77edddccd1f92ca97bd41eb964e957293688e4fb81d19e085. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b12b0ca-d033-4ab2-b135-2ebaa4ec3e55.json and https://artists.proofprofile.net/proofs/artist/6b12b0ca-d033-4ab2-b135-2ebaa4ec3e55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dinu Lipatti (100th Anniversary Edition)
16 Waltzes, Op. 39: No. 15 in A Major (Version for Piano Duo)
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 0x58ac62030c822113b9ccad2c813e07f6cd4eac0db3ab28420888c8d6b66efc8c. 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/DEAD61701107.
16 Waltzes, Op. 39: No. 2 in E Major (Version for Piano Duo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba7a04a181a2ce3e9a19090177d31733d2ab44794bdc534b79cd3f97958641b. 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/DEAD61701108.
16 Waltzes, Op. 39: No. 1 in B Major (Version for Piano Duo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b1c2aa01e120c6cb2c7e9c803d7bf30a63e66a58977914fe8461ef04377535. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEAD61701109.
16 Waltzes, Op. 39: No. 10 in G Major (Version for Piano Duo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf30ec0dbad1e5c3de7b65d73eee3d4e9c5d19e2399b8fde470e5ab3a5489555. 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/DEAD61701111.
16 Waltzes, Op. 39: No. 5 in E Major (Version for Piano Duo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef1881716ab0b413708ea736c80ed470a5c2eae01addbc29934cb8466d60f6f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEAD61701112.
Grieg: Concerto pour piano, Op. 16 - Schumann: Concerto pour piano, Op. 54 (Mono Version)
Artur Balsam plays Brahms, Beethoven, Mozart, Strauss, Hindemith, Clementi, CPe Bach, Paganini, Hummel, Ravel, Debussy
Milestones of a Conductor Legend: Otto Ackermann, Vol. 5
Beethoven: Symphonies Nos. 5 & 7 - Dvořák: Symphony No. 9 & Cello Concerto
Don Giovanni, K. 527: Don Giovanni, a cenar teco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afef0235eb8f5eeae03071e5df1faebb1b83d3c79f57a961b3f5c394d06614b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USB8U1612272.
Die Csardasfurstin (The Gypsy Princess), Act II: Duet: Tanzen mochte ich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baf890912e3e068ac71483de1e52b516f11d66ca36e743d9107dcd72a273d64. 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/DEAD61402501.
Der Zigeunerbaron, Act II: Entrance: Her die Hand, es muss ja sein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5154af0417706be809414ff14e74a88f163b216e9442b5de2ba776f5ecc6bac3. 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/DEAD61402502.
Der Vetter aus Dingsda, Act I: Ich bin nur ein armer Wandergesell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a8aaed1da2bc463c94cb114e2899a62e788da05eda950e43487024ae85dcde. 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/DEAD61402503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5dcdad3e9f7e6bff6839dde9e60268a21743103257c0356af336d2270c6709. 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/DEAD61402504.
Die Csardasfurstin (The Gypsy Princess), Act II: Machen wir's den Schwalben nach
Northwest German Radio Symphony Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc24961964a5ec56a682ae1b55686614ca8afd43f9728350e2bb78dd08e2a58. 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/DEAD61402505.
Eine Nacht in Venedig (A Night in Venice), Act I: Komm in die Gondel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f33baca861ccb12e6e3cce21b99b4f7d4231ff427d4a106c7687c041779d94. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAD61402506.
Operas and Operettas - Donizetti, G. / Lehar, F. / Kalman, E. / Boito, A. / Puccini, G. / Bellini, V. / Mozart, W.A. (Festival of the Primadonnas)
Opera Arias (Baritone): Prey, Hermann - Mozart, W.A. / Lortzing, A. / Marschner, H.A. / Humperdinck, E. / Rossini, G. (1954, 1957)
Milestones of a Conductor Legend: Otto Ackermann, Vol. 10
Milestones of a Conductor Legend: Otto Ackermann, Vol. 9
Milestones of a Conductor Legend: Otto Ackermann, Vol. 7
Milestones of a Conductor Legend: Otto Ackermann, Vol. 6 (Live)
Milestones of a Conductor Legend: Otto Ackermann, Vol. 4
Milestones of a Conductor Legend: Otto Ackermann, Vol. 3
Milestones of a Conductor Legend: Otto Ackermann, Vol. 2
Milestones of a Conductor Legend: Otto Ackermann, Vol. 1
Mozart: Sinfonia concertante in E-Flat Major, K. 364 – Chopin: Piano Concerto No. 1 in E Minor, Op. 11
Bach, Mozart & Chopin: Piano Concertos (Live)
Frank Pelleg, Vol 1: Bach, Mendelssohn & Debussy
Puccini: Manon Lescaut (Sung in German) [Recorded 1954 & 1960]
Richard Strauss: Don Juan, Tod und Verklärung, Till Eulenspiegels lustige Streiche & Vier letzte Lieder
Liszt: Géza Anda - Die besten Aufnahmen des ungarischen Meisterpianisten, Vol. 1
Johann Strauss II: Eine Nacht in Venedig
Nonnenchor und das Lied der Laura (Nun's Chorus & Laura's Song) (from "Casanova")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daf068104199cff8911d524697942008ac3984c305fceb557e443722859386b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USX761112206.
Meine Lippen sie küssen so heiss (from "Giuditta")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05034602e96d80afc68ef6b4fb0adcbbbc36b735dbec369fe2baf9b9521f7536. 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/USX761112212.
Mozart / Beethoven: Piano Concertos (Haskil) (1954-1956)
Beethoven : Concerto No. 5 In E-flat Major for Piano and Orchestra, Op. 73 '' Emperor ''
Strauss Ii, J.: Wiener Blut (Schwarzkopf, Gedda, Ackermann) (1954)
Strauss Ii, J.: Nacht in Venedig (Eine) (Schwarzkopf, Gedda) (1954)
C.P.E. Bach, Beethoven, Mozart & Others: Piano Concertos
Giuditta: Meine Lippen, sie küssen so heiss - 1999 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fcdf56fdbefdc25cc723dd4a5c1ae067e36c6aaa74e6b71b8ce76227515f25. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAYC9801369.
Casanova: Oh Madonna auf uns sieh! - O Marie, wie entflieh - 1999 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28fcfb9be931cf41031acf11f8b2cda20482a6f176bec01cc2c3d2c329afa11. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBAYC9801362.
Die Dubarry: Ich schenk' mein Herz - 1999 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3330b28d0bcb71fe6461d96437a815818c7acbd708e8d07c6ca67430f6005b52. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAYC9801364.