LEHMÄ
type: MusicGroup
genre: finnish hip hop
popularity: 2
followers: 158
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2dc9910becc545e450eb21aaefc2be35e49eb747e2a428cf5a6b0c4eb3c5400
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/687813ff-c982-4fb4-9a9e-fa3be20240bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/687813ff-c982-4fb4-9a9e-fa3be20240bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/687813ff-c982-4fb4-9a9e-fa3be20240bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2dc9910becc545e450eb21aaefc2be35e49eb747e2a428cf5a6b0c4eb3c5400","name":"LEHMÄ","registered_at":"2026-06-17T02:24:01Z","symbol":"NIM1251424","token_address":"0x016c15452f0ce211ab3ece1461e63fb9e2d71bfd","type":"artist","uuid":"687813ff-c982-4fb4-9a9e-fa3be20240bc"}
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 0xc2dc9910becc545e450eb21aaefc2be35e49eb747e2a428cf5a6b0c4eb3c5400. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/687813ff-c982-4fb4-9a9e-fa3be20240bc.json and https://artists.proofprofile.net/proofs/artist/687813ff-c982-4fb4-9a9e-fa3be20240bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc2dc9910becc545e450eb21aaefc2be35e49eb747e2a428cf5a6b0c4eb3c5400","name":"LEHMÄ","registered_at":"2026-06-17T02:24:01Z","symbol":"NIM1251424","token_address":"0x016c15452f0ce211ab3ece1461e63fb9e2d71bfd","type":"artist","uuid":"687813ff-c982-4fb4-9a9e-fa3be20240bc"}
album: Viimeiset hitaat
  type: MusicAlbum
  date published: 2021-02-19
album: Tuulikki & Tove
  type: MusicAlbum
  date published: 2021-12-03
album: Äidinmaa
  type: MusicAlbum
  date published: 2022-06-17