Dariusz Stachura
type: MusicGroup
genre: opera
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a0e774e88a35180fd93830b15ae39dc117866b6e5bb3cabc669407aacae51b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2bd1790-fb13-43a5-adcf-bb2df07f86ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2bd1790-fb13-43a5-adcf-bb2df07f86ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2bd1790-fb13-43a5-adcf-bb2df07f86ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6a0e774e88a35180fd93830b15ae39dc117866b6e5bb3cabc669407aacae51b0","name":"Dariusz Stachura","registered_at":"2026-06-21T13:32:47Z","symbol":"NIM1936249","token_address":"0xb8e8a07932b012e1f2c43ad22ae2e1be7932ed73","type":"artist","uuid":"f2bd1790-fb13-43a5-adcf-bb2df07f86ea"}
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 0x6a0e774e88a35180fd93830b15ae39dc117866b6e5bb3cabc669407aacae51b0. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2bd1790-fb13-43a5-adcf-bb2df07f86ea.json and https://artists.proofprofile.net/proofs/artist/f2bd1790-fb13-43a5-adcf-bb2df07f86ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x6a0e774e88a35180fd93830b15ae39dc117866b6e5bb3cabc669407aacae51b0","name":"Dariusz Stachura","registered_at":"2026-06-21T13:32:47Z","symbol":"NIM1936249","token_address":"0xb8e8a07932b012e1f2c43ad22ae2e1be7932ed73","type":"artist","uuid":"f2bd1790-fb13-43a5-adcf-bb2df07f86ea"}