Michal Haktana
type: MusicGroup
popularity: 7
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe73f3cd00589226ea6f76f7d2e2823b608891e7e543530af940a2a7771c14a4f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7598796-3c49-487c-a2bd-0afd90161816.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7598796-3c49-487c-a2bd-0afd90161816.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7598796-3c49-487c-a2bd-0afd90161816
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe73f3cd00589226ea6f76f7d2e2823b608891e7e543530af940a2a7771c14a4f","name":"Michal Haktana","registered_at":"2026-06-20T15:29:35Z","symbol":"NIM1642704","token_address":"0xa14c8e90c6bedd79bce480ff77ab788e5e4aff6e","type":"artist","uuid":"b7598796-3c49-487c-a2bd-0afd90161816"}
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 0xe73f3cd00589226ea6f76f7d2e2823b608891e7e543530af940a2a7771c14a4f. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7598796-3c49-487c-a2bd-0afd90161816.json and https://artists.proofprofile.net/proofs/artist/b7598796-3c49-487c-a2bd-0afd90161816.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xe73f3cd00589226ea6f76f7d2e2823b608891e7e543530af940a2a7771c14a4f","name":"Michal Haktana","registered_at":"2026-06-20T15:29:35Z","symbol":"NIM1642704","token_address":"0xa14c8e90c6bedd79bce480ff77ab788e5e4aff6e","type":"artist","uuid":"b7598796-3c49-487c-a2bd-0afd90161816"}