Maria Lehmann
type: MusicGroup
popularity: 8
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72cf4250ebe454adab09555e6f4ca05a9adc820e0154721c71406be6464e7585
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72cf4250ebe454adab09555e6f4ca05a9adc820e0154721c71406be6464e7585","name":"Maria Lehmann","registered_at":"2026-06-16T07:03:03Z","symbol":"NIM0974407","token_address":"0x01fce17c61434eeed9e8b6e60d423c09ac9fa073","type":"artist","uuid":"323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed"}
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 0x72cf4250ebe454adab09555e6f4ca05a9adc820e0154721c71406be6464e7585. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed.json and https://artists.proofprofile.net/proofs/artist/323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x72cf4250ebe454adab09555e6f4ca05a9adc820e0154721c71406be6464e7585","name":"Maria Lehmann","registered_at":"2026-06-16T07:03:03Z","symbol":"NIM0974407","token_address":"0x01fce17c61434eeed9e8b6e60d423c09ac9fa073","type":"artist","uuid":"323f7be8-feb6-42b9-9a3c-e4ec3b5c7aed"}
album: Hundeerziehung & Hundetraining für Einsteiger: Wie Sie Ihren Hund verstehen, artgerecht erziehen und eine vertrauensvolle Bindung aufbauen
  type: MusicAlbum
  date published: 2023-05-04