Yuko Ohigashi
type: MusicGroup
popularity: 2
followers: 208
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9694ee6c41d5d3f9e41510e828addca3ebbeff2505efc6b9f256afc27acf3ea9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fdf2e79-566b-45c9-b9f3-8bb981e30473.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fdf2e79-566b-45c9-b9f3-8bb981e30473.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2fdf2e79-566b-45c9-b9f3-8bb981e30473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9694ee6c41d5d3f9e41510e828addca3ebbeff2505efc6b9f256afc27acf3ea9","name":"Yuko Ohigashi","registered_at":"2026-06-16T06:12:02Z","symbol":"NIM0962231","token_address":"0xa2b40ccbd37d9f57fbfd1dcac8e2269cfb5d937c","type":"artist","uuid":"2fdf2e79-566b-45c9-b9f3-8bb981e30473"}
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 0x9694ee6c41d5d3f9e41510e828addca3ebbeff2505efc6b9f256afc27acf3ea9. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fdf2e79-566b-45c9-b9f3-8bb981e30473.json and https://artists.proofprofile.net/proofs/artist/2fdf2e79-566b-45c9-b9f3-8bb981e30473.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0x9694ee6c41d5d3f9e41510e828addca3ebbeff2505efc6b9f256afc27acf3ea9","name":"Yuko Ohigashi","registered_at":"2026-06-16T06:12:02Z","symbol":"NIM0962231","token_address":"0xa2b40ccbd37d9f57fbfd1dcac8e2269cfb5d937c","type":"artist","uuid":"2fdf2e79-566b-45c9-b9f3-8bb981e30473"}
album: Mysterious
  type: MusicAlbum
  date published: 2002
album: If Only I Could
  type: MusicAlbum
  date published: 2002
album: Love Songs
  type: MusicAlbum
  date published: 2002
album: True Love
  type: MusicAlbum
  date published: 2002
album: Classical Selections Volume 1
  type: MusicAlbum
  date published: 2002
album: Old Time Favorites
  type: MusicAlbum
  date published: 2002
album: My Best Original Compositions
  type: MusicAlbum
  date published: 2004-03-01
album: Original Compositions Vol 4
  type: MusicAlbum
  date published: 2005-02-11