Ernst Vlcek
type: MusicGroup
popularity: 43
followers: 308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d8960390b5336c67da8fd5edc7c249d2610da8356054931772f3e69aeb326db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3adde670-6d7a-4a95-b670-cfdbd320ba91.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3adde670-6d7a-4a95-b670-cfdbd320ba91.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3adde670-6d7a-4a95-b670-cfdbd320ba91
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d8960390b5336c67da8fd5edc7c249d2610da8356054931772f3e69aeb326db","name":"Ernst Vlcek","registered_at":"2026-06-11T17:04:03Z","symbol":"NIM0076369","token_address":"0xb2ffc6aa97ecfc93b13134b46f282b58775caa62","type":"artist","uuid":"3adde670-6d7a-4a95-b670-cfdbd320ba91"}
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 0x2d8960390b5336c67da8fd5edc7c249d2610da8356054931772f3e69aeb326db. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3adde670-6d7a-4a95-b670-cfdbd320ba91.json and https://artists.proofprofile.net/proofs/artist/3adde670-6d7a-4a95-b670-cfdbd320ba91.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2d8960390b5336c67da8fd5edc7c249d2610da8356054931772f3e69aeb326db","name":"Ernst Vlcek","registered_at":"2026-06-11T17:04:03Z","symbol":"NIM0076369","token_address":"0xb2ffc6aa97ecfc93b13134b46f282b58775caa62","type":"artist","uuid":"3adde670-6d7a-4a95-b670-cfdbd320ba91"}