Ken Keller
type: MusicGroup
description: Kenneth W. Keller (August 16, 1922 – February 24, 1983) was an American professional basketball player. At and , he played as a guard for the Washington Capitols and the Providence Steamrollers durin
popularity: 7
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86ba307872683fdaa5fae0db9e954a5ea0e5b914bd732fe1795b88055618639d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08177148-4cbc-4949-b40f-203c1b444c41.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08177148-4cbc-4949-b40f-203c1b444c41.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/08177148-4cbc-4949-b40f-203c1b444c41
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86ba307872683fdaa5fae0db9e954a5ea0e5b914bd732fe1795b88055618639d","name":"Ken Keller","registered_at":"2026-06-15T16:34:44Z","symbol":"NIM0767147","token_address":"0x425f9f096700a8b7cf1e66e2a9bafe89892e6650","type":"artist","uuid":"08177148-4cbc-4949-b40f-203c1b444c41"}
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 0x86ba307872683fdaa5fae0db9e954a5ea0e5b914bd732fe1795b88055618639d. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08177148-4cbc-4949-b40f-203c1b444c41.json and https://artists.proofprofile.net/proofs/artist/08177148-4cbc-4949-b40f-203c1b444c41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x86ba307872683fdaa5fae0db9e954a5ea0e5b914bd732fe1795b88055618639d","name":"Ken Keller","registered_at":"2026-06-15T16:34:44Z","symbol":"NIM0767147","token_address":"0x425f9f096700a8b7cf1e66e2a9bafe89892e6650","type":"artist","uuid":"08177148-4cbc-4949-b40f-203c1b444c41"}
album: Attitudes and Alcohol
  type: MusicAlbum
  date published: 2025-08-22