Leonie Persch
type: MusicGroup
popularity: 12
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0a4ed8ac845747957951e0c8dab8ec1c09186e243c1fcd13fb136e0810b8745
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d0d0de9-9034-42e5-921b-4a8ebfdb98b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d0d0de9-9034-42e5-921b-4a8ebfdb98b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d0d0de9-9034-42e5-921b-4a8ebfdb98b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf0a4ed8ac845747957951e0c8dab8ec1c09186e243c1fcd13fb136e0810b8745","name":"Leonie Persch","registered_at":"2026-06-14T15:55:47Z","symbol":"NIM0502499","token_address":"0xfacca0a9ce88447e870e967b3c3a4cd2165954a7","type":"artist","uuid":"6d0d0de9-9034-42e5-921b-4a8ebfdb98b5"}
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 0xf0a4ed8ac845747957951e0c8dab8ec1c09186e243c1fcd13fb136e0810b8745. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d0d0de9-9034-42e5-921b-4a8ebfdb98b5.json and https://artists.proofprofile.net/proofs/artist/6d0d0de9-9034-42e5-921b-4a8ebfdb98b5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0xf0a4ed8ac845747957951e0c8dab8ec1c09186e243c1fcd13fb136e0810b8745","name":"Leonie Persch","registered_at":"2026-06-14T15:55:47Z","symbol":"NIM0502499","token_address":"0xfacca0a9ce88447e870e967b3c3a4cd2165954a7","type":"artist","uuid":"6d0d0de9-9034-42e5-921b-4a8ebfdb98b5"}
album: Blindfolded
  type: MusicAlbum
  date published: 2025-02-21
album: Code Blue
  type: MusicAlbum
  date published: 2025-08-01