Kenneth Slowik
type: MusicGroup
genre: chamber music
description: Kenneth Slowik (born 1954) is an American cellist, viol player, and conductor. Curator of Musical Instrument Collection at the National Museum of American History and Artistic Director of the Smithso
popularity: 3
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa90ce429d352a9155c958c00f91ea0a6bc0162946bc2ecdf4db38d1130da327c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2bf1923-8c88-425a-bf99-b3fb608a139e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2bf1923-8c88-425a-bf99-b3fb608a139e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2bf1923-8c88-425a-bf99-b3fb608a139e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa90ce429d352a9155c958c00f91ea0a6bc0162946bc2ecdf4db38d1130da327c","name":"Kenneth Slowik","registered_at":"2026-06-20T12:46:24Z","symbol":"NIM1615666","token_address":"0x4f54fbeaf5dd7c3d9d09a97db1c527bd63cfbd00","type":"artist","uuid":"b2bf1923-8c88-425a-bf99-b3fb608a139e"}
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 0xa90ce429d352a9155c958c00f91ea0a6bc0162946bc2ecdf4db38d1130da327c. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2bf1923-8c88-425a-bf99-b3fb608a139e.json and https://artists.proofprofile.net/proofs/artist/b2bf1923-8c88-425a-bf99-b3fb608a139e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xa90ce429d352a9155c958c00f91ea0a6bc0162946bc2ecdf4db38d1130da327c","name":"Kenneth Slowik","registered_at":"2026-06-20T12:46:24Z","symbol":"NIM1615666","token_address":"0x4f54fbeaf5dd7c3d9d09a97db1c527bd63cfbd00","type":"artist","uuid":"b2bf1923-8c88-425a-bf99-b3fb608a139e"}