Hallgeir Greger
type: MusicGroup
popularity: 2
followers: 354
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x375910bb1802b01f9aa25015cb7b5c79ecef228b7cc9bd323e3a87090438001d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86c636a3-8e4a-4d39-830b-2d0ff7b70387.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86c636a3-8e4a-4d39-830b-2d0ff7b70387.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/86c636a3-8e4a-4d39-830b-2d0ff7b70387
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x375910bb1802b01f9aa25015cb7b5c79ecef228b7cc9bd323e3a87090438001d","name":"Hallgeir Greger","registered_at":"2026-06-17T12:41:27Z","symbol":"NIM1398680","token_address":"0x7dc3a3195b71433ee845dbf5a3e734382c85bb00","type":"artist","uuid":"86c636a3-8e4a-4d39-830b-2d0ff7b70387"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375910bb1802b01f9aa25015cb7b5c79ecef228b7cc9bd323e3a87090438001d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86c636a3-8e4a-4d39-830b-2d0ff7b70387.json and https://artists.proofprofile.net/proofs/artist/86c636a3-8e4a-4d39-830b-2d0ff7b70387.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x375910bb1802b01f9aa25015cb7b5c79ecef228b7cc9bd323e3a87090438001d","name":"Hallgeir Greger","registered_at":"2026-06-17T12:41:27Z","symbol":"NIM1398680","token_address":"0x7dc3a3195b71433ee845dbf5a3e734382c85bb00","type":"artist","uuid":"86c636a3-8e4a-4d39-830b-2d0ff7b70387"}
album: Herlige Lovsang
  type: MusicAlbum
  date published: 1977
album: Røtter
  type: MusicAlbum
  date published: 2005-01-01
album: Jeg Vil Gi Deg Alt
  type: MusicAlbum
  date published: 2006-06-27
album: Jeg Vil Gi Deg Alt
  type: MusicAlbum
  date published: 2006-06-27
album: Dans meg hjem
  type: MusicAlbum
  date published: 2014-01-01