John D. Hart
type: MusicGroup
popularity: 9
followers: 204
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7e250443eae89213cd0b2eb57a9ded51623e50dcb0738c1aa80f88586e9f817
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5527ad2-9e2b-4267-84ea-246c90a0f1ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5527ad2-9e2b-4267-84ea-246c90a0f1ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5527ad2-9e2b-4267-84ea-246c90a0f1ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7e250443eae89213cd0b2eb57a9ded51623e50dcb0738c1aa80f88586e9f817","name":"John D. Hart","registered_at":"2026-06-21T02:32:49Z","symbol":"NIM1792858","token_address":"0xd1e65def59d5024662db8e445ca192e6980d62c6","type":"artist","uuid":"d5527ad2-9e2b-4267-84ea-246c90a0f1ff"}
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 0xf7e250443eae89213cd0b2eb57a9ded51623e50dcb0738c1aa80f88586e9f817. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5527ad2-9e2b-4267-84ea-246c90a0f1ff.json and https://artists.proofprofile.net/proofs/artist/d5527ad2-9e2b-4267-84ea-246c90a0f1ff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf7e250443eae89213cd0b2eb57a9ded51623e50dcb0738c1aa80f88586e9f817","name":"John D. Hart","registered_at":"2026-06-21T02:32:49Z","symbol":"NIM1792858","token_address":"0xd1e65def59d5024662db8e445ca192e6980d62c6","type":"artist","uuid":"d5527ad2-9e2b-4267-84ea-246c90a0f1ff"}
album: Die Verwandlung (Hausfrau zu Hotwife)
  type: MusicAlbum
  date published: 2019-09-18
album: Erotische Fotos (eine Lilja Kurzgeschichte)
  type: MusicAlbum
  date published: 2021-06-25
album: Vor seinen Augen (Next Level Hotwife)
  type: MusicAlbum
  date published: 2021-10-19