Karl Berger
type: MusicGroup
genre: free jazz
description: Karl Hans Berger (March 30, 1935 – April 9, 2023) was a German-American jazz pianist, vibraphonist, composer, and educator. He was a leading figure in jazz improvisation from the 1960s when he settled
popularity: 6
followers: 864
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d99d4cd4705c81f61b1540a2744ddb56091ef5e3c6237416775dfbdb8dbe395. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c6e48a6-6c94-4092-b96a-c57140ea7ed1.json and https://artists.proofprofile.net/proofs/artist/9c6e48a6-6c94-4092-b96a-c57140ea7ed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T05:07:36Z
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album: Transit
  type: MusicAlbum
  date published: 1987-12-28
album: Crystal Fire
  type: MusicAlbum
  date published: 1990
album: Karl Berger & Paul Shigihara
  type: MusicAlbum
  date published: 1991-12-04
album: Conversations
  type: MusicAlbum
  date published: 1994-10-01
album: All Kinds of Time
  type: MusicAlbum
  date published: 2000-01-01
album: Duets 1
  type: MusicAlbum
  date published: 2006-09-04
album: Strangely Familiar
  type: MusicAlbum
  date published: 2010-07-27
album: Gently Unfamiliar: Suite in 7 Movements for Piano Trio
  type: MusicAlbum
  date published: 2014-11-18
album: In a Moment: Music For Piano and Strings
  type: MusicAlbum
  date published: 2018-03-20
album: CRYSTAL FIRE
  type: MusicAlbum
  date published: 2021-01-27
album: Musica Poetica
  type: MusicAlbum
  date published: 2021-08-20
album: Sketches
  type: MusicAlbum
  date published: 2022-06-24
album: Sketches
  type: MusicAlbum
  date published: 2022-07-01
album: Heart is a Melody of Time
  type: MusicAlbum
  date published: 2022-10-07
album: Noble Heart
  type: MusicAlbum
  date published: 2022-10-28
album: Heart is a Melody
  type: MusicAlbum
  date published: 2022-11-18