Kari Medaas
type: MusicGroup
genre: norwegian pop
popularity: 4
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x150ec63b3d9b74214bed163d6110f4d38c73e71ccbb14d060e80579b420359f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee814ab2-f384-45db-b86a-1ee6ece73ad5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee814ab2-f384-45db-b86a-1ee6ece73ad5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee814ab2-f384-45db-b86a-1ee6ece73ad5
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x150ec63b3d9b74214bed163d6110f4d38c73e71ccbb14d060e80579b420359f4","name":"Kari Medaas","registered_at":"2026-06-21T12:12:31Z","symbol":"NIM1919201","token_address":"0x961e0941ac93ccdb7dc97c008daf13231dad1259","type":"artist","uuid":"ee814ab2-f384-45db-b86a-1ee6ece73ad5"}
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 0x150ec63b3d9b74214bed163d6110f4d38c73e71ccbb14d060e80579b420359f4. Chain 2 (Bitcoin): anchored in block 954705. Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee814ab2-f384-45db-b86a-1ee6ece73ad5.json and https://artists.proofprofile.net/proofs/artist/ee814ab2-f384-45db-b86a-1ee6ece73ad5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  text: {"copyright_id":"0x150ec63b3d9b74214bed163d6110f4d38c73e71ccbb14d060e80579b420359f4","name":"Kari Medaas","registered_at":"2026-06-21T12:12:31Z","symbol":"NIM1919201","token_address":"0x961e0941ac93ccdb7dc97c008daf13231dad1259","type":"artist","uuid":"ee814ab2-f384-45db-b86a-1ee6ece73ad5"}