Per Jørgensen
type: MusicGroup
genre: free jazz
description: Per Jørgensen (born 9 September 1952) is a Norwegian multi-instrumentalist with trumpet as his main instrument, also known for his vocal contributions, in collaboration with Dag Arnesen, Knut Kristian
popularity: 2
followers: 247
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x388c69a66825ef9b4d7138d3fbb4c22accc29d3ed56e0fe07ed3547c00a65499
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcfafd2e-7358-4ce1-bafd-2382feeeb5ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcfafd2e-7358-4ce1-bafd-2382feeeb5ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fcfafd2e-7358-4ce1-bafd-2382feeeb5ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x388c69a66825ef9b4d7138d3fbb4c22accc29d3ed56e0fe07ed3547c00a65499","name":"Per Jørgensen","registered_at":"2026-06-21T18:05:52Z","symbol":"NIM1996756","token_address":"0x6ff5dfdb6d0581e0bd346202aa4e82153a4527a6","type":"artist","uuid":"fcfafd2e-7358-4ce1-bafd-2382feeeb5ce"}
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 0x388c69a66825ef9b4d7138d3fbb4c22accc29d3ed56e0fe07ed3547c00a65499. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcfafd2e-7358-4ce1-bafd-2382feeeb5ce.json and https://artists.proofprofile.net/proofs/artist/fcfafd2e-7358-4ce1-bafd-2382feeeb5ce.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x388c69a66825ef9b4d7138d3fbb4c22accc29d3ed56e0fe07ed3547c00a65499","name":"Per Jørgensen","registered_at":"2026-06-21T18:05:52Z","symbol":"NIM1996756","token_address":"0x6ff5dfdb6d0581e0bd346202aa4e82153a4527a6","type":"artist","uuid":"fcfafd2e-7358-4ce1-bafd-2382feeeb5ce"}
album: On and On
  type: MusicAlbum
  date published: 1991
album: Unspoken Songs
  type: MusicAlbum
  date published: 2006-05-11
album: Agbalagba Daada
  type: MusicAlbum
  date published: 2008-06-02