Karin Fossum
type: MusicGroup
description: Karin Fossum (born 6 November 1954) is a Norwegian author of crime fiction, often referred to as the "Norwegian queen of crime". Early life Karin Mathisen was born on 6 November 1954 in Sandefjord, i
popularity: 20
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf73fc0d1b63d97b1d979c6b186ad572d8a5b8c9416fe0c62ee4f3aebd420e417
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df6df9f1-3cfb-487e-976b-68d0366640c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df6df9f1-3cfb-487e-976b-68d0366640c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df6df9f1-3cfb-487e-976b-68d0366640c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf73fc0d1b63d97b1d979c6b186ad572d8a5b8c9416fe0c62ee4f3aebd420e417","name":"Karin Fossum","registered_at":"2026-06-15T03:55:07Z","symbol":"NIM0674152","token_address":"0x3b69fa993a0a8dbc448ac37167b72cd56e0ae1d6","type":"artist","uuid":"df6df9f1-3cfb-487e-976b-68d0366640c4"}
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 0xf73fc0d1b63d97b1d979c6b186ad572d8a5b8c9416fe0c62ee4f3aebd420e417. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df6df9f1-3cfb-487e-976b-68d0366640c4.json and https://artists.proofprofile.net/proofs/artist/df6df9f1-3cfb-487e-976b-68d0366640c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xf73fc0d1b63d97b1d979c6b186ad572d8a5b8c9416fe0c62ee4f3aebd420e417","name":"Karin Fossum","registered_at":"2026-06-15T03:55:07Z","symbol":"NIM0674152","token_address":"0x3b69fa993a0a8dbc448ac37167b72cd56e0ae1d6","type":"artist","uuid":"df6df9f1-3cfb-487e-976b-68d0366640c4"}
album: Der Nachtläufer
  type: MusicAlbum
  date published: 2024-03-12
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-04-01