Harry Graf Kessler
type: MusicGroup
popularity: 2
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7ccba96c78f1cd232be6a1a09ff30b0895b2b683d101364baf5657a947d43f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ec6360c-99d5-4252-9b5a-f70ff3829769.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ec6360c-99d5-4252-9b5a-f70ff3829769.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8ec6360c-99d5-4252-9b5a-f70ff3829769
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7ccba96c78f1cd232be6a1a09ff30b0895b2b683d101364baf5657a947d43f2","name":"Harry Graf Kessler","registered_at":"2026-06-17T15:30:03Z","symbol":"NIM1438838","token_address":"0x80f64706182a8d61097d856266b15d0ab13f6c5a","type":"artist","uuid":"8ec6360c-99d5-4252-9b5a-f70ff3829769"}
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 0xc7ccba96c78f1cd232be6a1a09ff30b0895b2b683d101364baf5657a947d43f2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ec6360c-99d5-4252-9b5a-f70ff3829769.json and https://artists.proofprofile.net/proofs/artist/8ec6360c-99d5-4252-9b5a-f70ff3829769.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xc7ccba96c78f1cd232be6a1a09ff30b0895b2b683d101364baf5657a947d43f2","name":"Harry Graf Kessler","registered_at":"2026-06-17T15:30:03Z","symbol":"NIM1438838","token_address":"0x80f64706182a8d61097d856266b15d0ab13f6c5a","type":"artist","uuid":"8ec6360c-99d5-4252-9b5a-f70ff3829769"}
album: Amerika. [Reisenotizen (Leicht gekürzt aus: Gesichter und Zeiten. Erinnerungen. Amerika.)]
  type: MusicAlbum
  date published: 2008-07-09
album: Tanz auf dem Vulkan (Der Revolutionswinter 1918/1919 in Tagebuchauszügen)
  type: MusicAlbum
  date published: 2009-03-18
album: San Franzisko
  type: MusicAlbum
  date published: 2014-09-09
album: New York
  type: MusicAlbum
  date published: 2014-09-09
album: Berlin, 9. November 1918
  type: MusicAlbum
  date published: 2014-09-09