Laura Kästner
type: MusicGroup
popularity: 11
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35a45f429ab64a81f55e315525c672cdd9273318fc0e39dbd6286e2e017bfe85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e88c71e-5d39-4000-9ec8-aac8fa64d488.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e88c71e-5d39-4000-9ec8-aac8fa64d488.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e88c71e-5d39-4000-9ec8-aac8fa64d488
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35a45f429ab64a81f55e315525c672cdd9273318fc0e39dbd6286e2e017bfe85","name":"Laura Kästner","registered_at":"2026-06-14T19:30:50Z","symbol":"NIM0553763","token_address":"0xde91fa7b29cbe8e7cb667ef97f562b7969915ea5","type":"artist","uuid":"8e88c71e-5d39-4000-9ec8-aac8fa64d488"}
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 0x35a45f429ab64a81f55e315525c672cdd9273318fc0e39dbd6286e2e017bfe85. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e88c71e-5d39-4000-9ec8-aac8fa64d488.json and https://artists.proofprofile.net/proofs/artist/8e88c71e-5d39-4000-9ec8-aac8fa64d488.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:33:01Z
  text: {"copyright_id":"0x35a45f429ab64a81f55e315525c672cdd9273318fc0e39dbd6286e2e017bfe85","name":"Laura Kästner","registered_at":"2026-06-14T19:30:50Z","symbol":"NIM0553763","token_address":"0xde91fa7b29cbe8e7cb667ef97f562b7969915ea5","type":"artist","uuid":"8e88c71e-5d39-4000-9ec8-aac8fa64d488"}
album: Bradwood Studios (ungekürzt) [Eloise & Chase]
  type: MusicAlbum
  date published: 2024-04-23
album: Bradwood Studios (Alexandra & Jack)
  type: MusicAlbum
  date published: 2024-10-22
album: Wenn der Wind die Stille zerbricht (Roman)
  type: MusicAlbum
  date published: 2025-04-15