Nat Caspar
type: MusicGroup
popularity: 17
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xceee7f39d7e20ff21dbafd4a053c1b9fa804748e6534efc3a383d9ea18691501
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b19f7379-6a32-4d67-b277-0d3017899481.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b19f7379-6a32-4d67-b277-0d3017899481.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b19f7379-6a32-4d67-b277-0d3017899481
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xceee7f39d7e20ff21dbafd4a053c1b9fa804748e6534efc3a383d9ea18691501","name":"Nat Caspar","registered_at":"2026-06-14T23:12:25Z","symbol":"NIM0606616","token_address":"0x20505125f0ed4269af49c9665f1d2ce2e52a6f78","type":"artist","uuid":"b19f7379-6a32-4d67-b277-0d3017899481"}
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 0xceee7f39d7e20ff21dbafd4a053c1b9fa804748e6534efc3a383d9ea18691501. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b19f7379-6a32-4d67-b277-0d3017899481.json and https://artists.proofprofile.net/proofs/artist/b19f7379-6a32-4d67-b277-0d3017899481.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xceee7f39d7e20ff21dbafd4a053c1b9fa804748e6534efc3a383d9ea18691501","name":"Nat Caspar","registered_at":"2026-06-14T23:12:25Z","symbol":"NIM0606616","token_address":"0x20505125f0ed4269af49c9665f1d2ce2e52a6f78","type":"artist","uuid":"b19f7379-6a32-4d67-b277-0d3017899481"}
album: Kopf leer, Herz voll
  type: MusicAlbum
  date published: 2024-09-02