Conrad Yama
type: MusicGroup
description: Conrad Yama (born Kiyoshi Conrad Hamanaka; October 8, 1919 – March 10, 2010), was an American theatre, film, and television actor. Early life Born and raised in Fresno, California, Hamanaka attended
popularity: 3
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfce16b48f3e8cd30639f2ca43c588918990c4064aac3dbfbd07d0e152be80db6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953933
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953933
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f0675a5-b274-4be5-8258-f337d3704dbc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f0675a5-b274-4be5-8258-f337d3704dbc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f0675a5-b274-4be5-8258-f337d3704dbc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:13:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfce16b48f3e8cd30639f2ca43c588918990c4064aac3dbfbd07d0e152be80db6","name":"Conrad Yama","registered_at":"2026-06-16T00:22:21Z","symbol":"NIM0878709","token_address":"0x8b8a5d923777839a6e7d43c972b624f9309ebd34","type":"artist","uuid":"1f0675a5-b274-4be5-8258-f337d3704dbc"}
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 0xfce16b48f3e8cd30639f2ca43c588918990c4064aac3dbfbd07d0e152be80db6. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f0675a5-b274-4be5-8258-f337d3704dbc.json and https://artists.proofprofile.net/proofs/artist/1f0675a5-b274-4be5-8258-f337d3704dbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xfce16b48f3e8cd30639f2ca43c588918990c4064aac3dbfbd07d0e152be80db6","name":"Conrad Yama","registered_at":"2026-06-16T00:22:21Z","symbol":"NIM0878709","token_address":"0x8b8a5d923777839a6e7d43c972b624f9309ebd34","type":"artist","uuid":"1f0675a5-b274-4be5-8258-f337d3704dbc"}