Knut Hem
type: MusicGroup
popularity: 5
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21d5530b8d774347643cdb8db8aa9d8e9c10f84635bf376c2601a557868c53b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6260a5fa-f828-44f6-ad50-59c3e0783dfd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6260a5fa-f828-44f6-ad50-59c3e0783dfd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6260a5fa-f828-44f6-ad50-59c3e0783dfd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x21d5530b8d774347643cdb8db8aa9d8e9c10f84635bf376c2601a557868c53b1","name":"Knut Hem","registered_at":"2026-06-16T23:54:06Z","symbol":"NIM1215653","token_address":"0x196882873a2606d6adf0a39db2ab58368a410cb7","type":"artist","uuid":"6260a5fa-f828-44f6-ad50-59c3e0783dfd"}
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 0x21d5530b8d774347643cdb8db8aa9d8e9c10f84635bf376c2601a557868c53b1. 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/6260a5fa-f828-44f6-ad50-59c3e0783dfd.json and https://artists.proofprofile.net/proofs/artist/6260a5fa-f828-44f6-ad50-59c3e0783dfd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x21d5530b8d774347643cdb8db8aa9d8e9c10f84635bf376c2601a557868c53b1","name":"Knut Hem","registered_at":"2026-06-16T23:54:06Z","symbol":"NIM1215653","token_address":"0x196882873a2606d6adf0a39db2ab58368a410cb7","type":"artist","uuid":"6260a5fa-f828-44f6-ad50-59c3e0783dfd"}
album: Once in a very blue mood
  type: MusicAlbum
  date published: 2000-01-01
album: Once in a Very Blue Mood
  type: MusicAlbum
  date published: 2000-01-01
album: Almost on My Own
  type: MusicAlbum
  date published: 2011-09-30
album: Almost on my own
  type: MusicAlbum
  date published: 2011-12-30
album: Railroad Worksong
  type: MusicAlbum
  date published: 2021-09-10
album: The Weissenborn Christmas EP
  type: MusicAlbum
  date published: 2021-12-10
album: A touch of blues
  type: MusicAlbum
  date published: 2024-08-02