Petra Haghjou
type: MusicGroup
popularity: 15
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ae954d8111016bd71a0675d031b0db07fccb6c306a9e2874e2bd3093ac54ffe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953827
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T19:59:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8ae954d8111016bd71a0675d031b0db07fccb6c306a9e2874e2bd3093ac54ffe","name":"Petra Haghjou","registered_at":"2026-06-15T04:58:21Z","symbol":"NIM0689239","token_address":"0x3af5abf7511465de4dc14a6c886251a6c8ab4ef0","type":"artist","uuid":"e7d268f4-9b5d-4c7f-8da1-ef7eb1788517"}
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 0x8ae954d8111016bd71a0675d031b0db07fccb6c306a9e2874e2bd3093ac54ffe. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.json and https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x8ae954d8111016bd71a0675d031b0db07fccb6c306a9e2874e2bd3093ac54ffe","name":"Petra Haghjou","registered_at":"2026-06-15T04:58:21Z","symbol":"NIM0689239","token_address":"0x3af5abf7511465de4dc14a6c886251a6c8ab4ef0","type":"artist","uuid":"e7d268f4-9b5d-4c7f-8da1-ef7eb1788517"}
album: Kleider machen Liebe (Ungekürzt)
  type: MusicAlbum
  date published: 2022-09-16
album: Filmreif verliebt (Ungekürzt)
  type: MusicAlbum
  date published: 2024-01-12
album: Der Tote im Teich - Journalistin Charlotte Schrader ermittelt [Eine mörderische Reportage, Band 1 (Ungekürzt)]
  type: MusicAlbum
  date published: 2025-01-10