Lars Pettersson
type: MusicGroup
popularity: 2
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d0f4c68378c99fffc149525585803e17d103942133759c95f8b2c1dbd523bfe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fad3a170-f1c2-4b6b-85ba-af4825546933.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fad3a170-f1c2-4b6b-85ba-af4825546933.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fad3a170-f1c2-4b6b-85ba-af4825546933
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d0f4c68378c99fffc149525585803e17d103942133759c95f8b2c1dbd523bfe","name":"Lars Pettersson","registered_at":"2026-06-21T16:40:08Z","symbol":"NIM1977173","token_address":"0x15db45dd22f43616a4f13d3aa82ef1782e3d251b","type":"artist","uuid":"fad3a170-f1c2-4b6b-85ba-af4825546933"}
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 0x5d0f4c68378c99fffc149525585803e17d103942133759c95f8b2c1dbd523bfe. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fad3a170-f1c2-4b6b-85ba-af4825546933.json and https://artists.proofprofile.net/proofs/artist/fad3a170-f1c2-4b6b-85ba-af4825546933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x5d0f4c68378c99fffc149525585803e17d103942133759c95f8b2c1dbd523bfe","name":"Lars Pettersson","registered_at":"2026-06-21T16:40:08Z","symbol":"NIM1977173","token_address":"0x15db45dd22f43616a4f13d3aa82ef1782e3d251b","type":"artist","uuid":"fad3a170-f1c2-4b6b-85ba-af4825546933"}
album: Einsam und kalt ist der Tod
  type: MusicAlbum
  date published: 2014-08-15
album: Einsam und kalt ist der Tod
  type: MusicAlbum
  date published: 2014-08-15
album: Mord am Polarkreis
  type: MusicAlbum
  date published: 2015-05-15
album: Mord am Polarkreis
  type: MusicAlbum
  date published: 2015-05-15