Ken Howard
type: MusicGroup
genre: musicals
description: Kenneth Joseph Howard Jr. (March 28, 1944 – March 23, 2016) was an American actor. He was known for his roles as Thomas Jefferson in 1776 (1972) and as high school basketball coach and former Chicago
popularity: 11
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8851a4c4749fea9ce61a3c1ce0029f3cac960237d492c5e210943d54e83a13e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8851a4c4749fea9ce61a3c1ce0029f3cac960237d492c5e210943d54e83a13e","name":"Ken Howard","registered_at":"2026-06-14T19:22:29Z","symbol":"NIM0551777","token_address":"0x79cfcb8c5f237f4b7b830ff89745ed3e7bcf0d5d","type":"artist","uuid":"8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c"}
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 0xe8851a4c4749fea9ce61a3c1ce0029f3cac960237d492c5e210943d54e83a13e. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.json and https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xe8851a4c4749fea9ce61a3c1ce0029f3cac960237d492c5e210943d54e83a13e","name":"Ken Howard","registered_at":"2026-06-14T19:22:29Z","symbol":"NIM0551777","token_address":"0x79cfcb8c5f237f4b7b830ff89745ed3e7bcf0d5d","type":"artist","uuid":"8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c"}
album: Kangaroos & Koalas (Songs & Stories)
  type: MusicAlbum
  date published: 2017-02-13
album: Kangaroos & Koalas (Songs & Stories)
  type: MusicAlbum
  date published: 2017-02-13