Gunter Hampel
type: MusicGroup
genre: avant-garde
genre: free jazz
genre: krautrock
description: thumb|right|250px|Gunter Hampel with his daughter, Cavana Lee, at the Moers Festival in 2012 Gunter Hampel (born 31 August 1937) is a German jazz vibraphonist, clarinettist, saxophonist, flautist, pi
popularity: 2
followers: 462
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/40313c7f-4ad1-40bc-8088-7e89f9698963.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40313c7f-4ad1-40bc-8088-7e89f9698963
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d97040beacb15d8d64409831addf4f6ac52c8922bcd694805e06016526eb54. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40313c7f-4ad1-40bc-8088-7e89f9698963.json and https://artists.proofprofile.net/proofs/artist/40313c7f-4ad1-40bc-8088-7e89f9698963.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Solo Now
  type: MusicAlbum
  date published: 2014-07-28
album: Bounce (Live at Theater Gütersloh)
  type: MusicAlbum
  date published: 2017-10-06
album: Out of New York
  type: MusicAlbum
  date published: 2016-07-01
album: Reeds 'n Vibes
  type: MusicAlbum
  date published: 1978-06-01
album: Espace
  type: MusicAlbum
  date published: 1970-01-01
album: Gesprächsfetzen (Live, München, 1968)
  type: MusicAlbum
  date published: 1968-11-18
album: Missa Contemplatione
  type: MusicAlbum
  date published: 2019-05-15