Hartmut El Kurdi
type: MusicGroup
popularity: 2
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa81e3c9b4eba0373e570d6460fc4dcd85609080ff862d99c1f7c844afc380f59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fed8e18f-b398-4ddc-af41-603cbe1c464e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fed8e18f-b398-4ddc-af41-603cbe1c464e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fed8e18f-b398-4ddc-af41-603cbe1c464e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa81e3c9b4eba0373e570d6460fc4dcd85609080ff862d99c1f7c844afc380f59","name":"Hartmut El Kurdi","registered_at":"2026-06-21T18:37:35Z","symbol":"NIM2002199","token_address":"0xedae163280505ab2bcdc3d2938b8dcc11c8a80a4","type":"artist","uuid":"fed8e18f-b398-4ddc-af41-603cbe1c464e"}
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 0xa81e3c9b4eba0373e570d6460fc4dcd85609080ff862d99c1f7c844afc380f59. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fed8e18f-b398-4ddc-af41-603cbe1c464e.json and https://artists.proofprofile.net/proofs/artist/fed8e18f-b398-4ddc-af41-603cbe1c464e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xa81e3c9b4eba0373e570d6460fc4dcd85609080ff862d99c1f7c844afc380f59","name":"Hartmut El Kurdi","registered_at":"2026-06-21T18:37:35Z","symbol":"NIM2002199","token_address":"0xedae163280505ab2bcdc3d2938b8dcc11c8a80a4","type":"artist","uuid":"fed8e18f-b398-4ddc-af41-603cbe1c464e"}