Michael Sokolowski
type: MusicGroup
description: Michael Sokolowski (born 24 February 1962) is a retired Canadian sprinter. He was a member of Canada's 4 × 400 metres relay at the 1984 Summer Olympics, which placed 8th. Alongside nearly every sprint
popularity: 4
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad05b239687c14a7da335b41998d3924a32c023d1985cc86e8aa8c55a6913f99
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98a39962-31bd-4c16-8d4d-454ba09adc9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98a39962-31bd-4c16-8d4d-454ba09adc9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98a39962-31bd-4c16-8d4d-454ba09adc9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad05b239687c14a7da335b41998d3924a32c023d1985cc86e8aa8c55a6913f99","name":"Michael Sokolowski","registered_at":"2026-06-17T18:41:50Z","symbol":"NIM1484618","token_address":"0xae53158c73b2d1023fac31c2952188504cfbc7f3","type":"artist","uuid":"98a39962-31bd-4c16-8d4d-454ba09adc9e"}
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 0xad05b239687c14a7da335b41998d3924a32c023d1985cc86e8aa8c55a6913f99. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98a39962-31bd-4c16-8d4d-454ba09adc9e.json and https://artists.proofprofile.net/proofs/artist/98a39962-31bd-4c16-8d4d-454ba09adc9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xad05b239687c14a7da335b41998d3924a32c023d1985cc86e8aa8c55a6913f99","name":"Michael Sokolowski","registered_at":"2026-06-17T18:41:50Z","symbol":"NIM1484618","token_address":"0xae53158c73b2d1023fac31c2952188504cfbc7f3","type":"artist","uuid":"98a39962-31bd-4c16-8d4d-454ba09adc9e"}
album: Common Margins
  type: MusicAlbum
  date published: 1999-10-12
album: Monday
  type: MusicAlbum
  date published: 2001
album: Efflorescence
  type: MusicAlbum
  date published: 2021-03-23