Lasse Lazer
type: MusicGroup
genre: norwegian pop
genre: russelåter
popularity: 16
followers: 202
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40bfa3128fe944d4c19b408d5babb447d699fe85e5aeb8f9c4ad23282b1bde6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62fcbf26-1096-4abd-b295-14af70384a75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62fcbf26-1096-4abd-b295-14af70384a75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/62fcbf26-1096-4abd-b295-14af70384a75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x40bfa3128fe944d4c19b408d5babb447d699fe85e5aeb8f9c4ad23282b1bde6f","name":"Lasse Lazer","registered_at":"2026-06-14T14:49:56Z","symbol":"NIM0486780","token_address":"0xf051f0b2425a1020200b73b9e808f123764d6b13","type":"artist","uuid":"62fcbf26-1096-4abd-b295-14af70384a75"}
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 0x40bfa3128fe944d4c19b408d5babb447d699fe85e5aeb8f9c4ad23282b1bde6f. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62fcbf26-1096-4abd-b295-14af70384a75.json and https://artists.proofprofile.net/proofs/artist/62fcbf26-1096-4abd-b295-14af70384a75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x40bfa3128fe944d4c19b408d5babb447d699fe85e5aeb8f9c4ad23282b1bde6f","name":"Lasse Lazer","registered_at":"2026-06-14T14:49:56Z","symbol":"NIM0486780","token_address":"0xf051f0b2425a1020200b73b9e808f123764d6b13","type":"artist","uuid":"62fcbf26-1096-4abd-b295-14af70384a75"}