Tomáš Procházka
type: MusicGroup
description: Tomáš Procházka (born 14 April 1981) is a professional Czech football player who currently plays for SK Kladno. He was club captain for Viktoria Žižkov in the 2010–11 season. References External lin
popularity: 2
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a1ede19df01ccd0457221200e1d92393577f68e3516cdd4347af36c428dfddf
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/ef678df2-e25c-4079-b9c5-87b2665db025.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef678df2-e25c-4079-b9c5-87b2665db025.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef678df2-e25c-4079-b9c5-87b2665db025
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a1ede19df01ccd0457221200e1d92393577f68e3516cdd4347af36c428dfddf","name":"Tomáš Procházka","registered_at":"2026-06-21T12:31:07Z","symbol":"NIM1923943","token_address":"0x34d8518e4ca7f4d45775f95a7ce03b3ecc151b48","type":"artist","uuid":"ef678df2-e25c-4079-b9c5-87b2665db025"}
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 0x5a1ede19df01ccd0457221200e1d92393577f68e3516cdd4347af36c428dfddf. 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/ef678df2-e25c-4079-b9c5-87b2665db025.json and https://artists.proofprofile.net/proofs/artist/ef678df2-e25c-4079-b9c5-87b2665db025.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x5a1ede19df01ccd0457221200e1d92393577f68e3516cdd4347af36c428dfddf","name":"Tomáš Procházka","registered_at":"2026-06-21T12:31:07Z","symbol":"NIM1923943","token_address":"0x34d8518e4ca7f4d45775f95a7ce03b3ecc151b48","type":"artist","uuid":"ef678df2-e25c-4079-b9c5-87b2665db025"}