Sayuri Horishita
type: MusicGroup
description: is a singer born on January 11, 1980, in Soma, Fukushima Prefecture, Japan. See BabeStar Profile of Sayuri Horishita. Retrieved July 3, 2006. The music video for her song "Kaze no Tōri Michi" aired o
popularity: 4
followers: 526
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8af6963156dccb7bf2b98caac8eef3f64336440f27c3417f5c3202060e491a87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cf70c81-67b3-4405-9e07-a5983fdeeac6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cf70c81-67b3-4405-9e07-a5983fdeeac6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9cf70c81-67b3-4405-9e07-a5983fdeeac6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8af6963156dccb7bf2b98caac8eef3f64336440f27c3417f5c3202060e491a87","name":"Sayuri Horishita","registered_at":"2026-06-20T04:14:47Z","symbol":"NIM1509234","token_address":"0x67760da9e17bd2a3f6392737304b79183cbbd11e","type":"artist","uuid":"9cf70c81-67b3-4405-9e07-a5983fdeeac6"}
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 0x8af6963156dccb7bf2b98caac8eef3f64336440f27c3417f5c3202060e491a87. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cf70c81-67b3-4405-9e07-a5983fdeeac6.json and https://artists.proofprofile.net/proofs/artist/9cf70c81-67b3-4405-9e07-a5983fdeeac6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x8af6963156dccb7bf2b98caac8eef3f64336440f27c3417f5c3202060e491a87","name":"Sayuri Horishita","registered_at":"2026-06-20T04:14:47Z","symbol":"NIM1509234","token_address":"0x67760da9e17bd2a3f6392737304b79183cbbd11e","type":"artist","uuid":"9cf70c81-67b3-4405-9e07-a5983fdeeac6"}
album: カゼノトオリミチ
  type: MusicAlbum
  date published: 2005-02-16
album: リリーポップライフ～complete songs～
  type: MusicAlbum
  date published: 2006-07-12
album: シロツメクサ咲いた夏
  type: MusicAlbum
  date published: 2007-06-20
album: fotonote
  type: MusicAlbum
  date published: 2012-06-17
album: うたかたの日々
  type: MusicAlbum
  date published: 2016-07-06