Martin Kristiansen
type: MusicGroup
popularity: 9
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80fdbcf24f821bb2572085318a001233da21e651410250071cd33ae73d8e7c72
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/921e9c18-e0ae-48ad-8576-2d29bfed1bbd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/921e9c18-e0ae-48ad-8576-2d29bfed1bbd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/921e9c18-e0ae-48ad-8576-2d29bfed1bbd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80fdbcf24f821bb2572085318a001233da21e651410250071cd33ae73d8e7c72","name":"Martin Kristiansen","registered_at":"2026-06-17T16:40:30Z","symbol":"NIM1455669","token_address":"0xa39c57a4685f4cbade6dd60ecab2ec25a4e9edf2","type":"artist","uuid":"921e9c18-e0ae-48ad-8576-2d29bfed1bbd"}
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 0x80fdbcf24f821bb2572085318a001233da21e651410250071cd33ae73d8e7c72. 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/921e9c18-e0ae-48ad-8576-2d29bfed1bbd.json and https://artists.proofprofile.net/proofs/artist/921e9c18-e0ae-48ad-8576-2d29bfed1bbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x80fdbcf24f821bb2572085318a001233da21e651410250071cd33ae73d8e7c72","name":"Martin Kristiansen","registered_at":"2026-06-17T16:40:30Z","symbol":"NIM1455669","token_address":"0xa39c57a4685f4cbade6dd60ecab2ec25a4e9edf2","type":"artist","uuid":"921e9c18-e0ae-48ad-8576-2d29bfed1bbd"}
album: Nusfjord
  type: MusicAlbum
  date published: 2023-08-31
album: Jul, Jul, Jul
  type: MusicAlbum
  date published: 2024-12-01