Klaus Voormann
type: MusicGroup
description: Klaus Otto Wilhelm Voormann (born 29 April 1938) is a German artist, musician, and record producer. Voormann was the bassist for Manfred Mann from 1966 to 1969, and performed as a session musician on
popularity: 17
followers: 142
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x311afcdae1898dfa8932ca2b76870174e8ea9e5d1bc8d6fcdbeb73bbcc4c1b89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceada3c5-e312-49e9-bb42-a4753380c245.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceada3c5-e312-49e9-bb42-a4753380c245.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ceada3c5-e312-49e9-bb42-a4753380c245
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x311afcdae1898dfa8932ca2b76870174e8ea9e5d1bc8d6fcdbeb73bbcc4c1b89","name":"Klaus Voormann","registered_at":"2026-06-15T02:10:20Z","symbol":"NIM0649142","token_address":"0xfec4eab1788aa546a1c305ee81548df6ab72ea75","type":"artist","uuid":"ceada3c5-e312-49e9-bb42-a4753380c245"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311afcdae1898dfa8932ca2b76870174e8ea9e5d1bc8d6fcdbeb73bbcc4c1b89. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceada3c5-e312-49e9-bb42-a4753380c245.json and https://artists.proofprofile.net/proofs/artist/ceada3c5-e312-49e9-bb42-a4753380c245.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x311afcdae1898dfa8932ca2b76870174e8ea9e5d1bc8d6fcdbeb73bbcc4c1b89","name":"Klaus Voormann","registered_at":"2026-06-15T02:10:20Z","symbol":"NIM0649142","token_address":"0xfec4eab1788aa546a1c305ee81548df6ab72ea75","type":"artist","uuid":"ceada3c5-e312-49e9-bb42-a4753380c245"}