Rurika Yokoyama
type: MusicGroup
description: is a Japanese talent and a member of the Japanese idol group Idoling!!!.Idoling!!! cast members She is represented by the Production Ogi talent agency. She attends Meiji Gakuin University.アイドリング!!!9
popularity: 2
followers: 323
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefeaf998e6701ff0ddd26dc27154c39270d72c8779e9ea33c8a6818701e86b84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d208eb5-aa2c-4a06-bfad-3f43b200959a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d208eb5-aa2c-4a06-bfad-3f43b200959a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5d208eb5-aa2c-4a06-bfad-3f43b200959a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefeaf998e6701ff0ddd26dc27154c39270d72c8779e9ea33c8a6818701e86b84","name":"Rurika Yokoyama","registered_at":"2026-06-16T21:58:42Z","symbol":"NIM1188125","token_address":"0x6fcc497d0c44571d25befddccd56137d69a2e389","type":"artist","uuid":"5d208eb5-aa2c-4a06-bfad-3f43b200959a"}
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 0xefeaf998e6701ff0ddd26dc27154c39270d72c8779e9ea33c8a6818701e86b84. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d208eb5-aa2c-4a06-bfad-3f43b200959a.json and https://artists.proofprofile.net/proofs/artist/5d208eb5-aa2c-4a06-bfad-3f43b200959a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xefeaf998e6701ff0ddd26dc27154c39270d72c8779e9ea33c8a6818701e86b84","name":"Rurika Yokoyama","registered_at":"2026-06-16T21:58:42Z","symbol":"NIM1188125","token_address":"0x6fcc497d0c44571d25befddccd56137d69a2e389","type":"artist","uuid":"5d208eb5-aa2c-4a06-bfad-3f43b200959a"}
album: Walk My Way(通常盤A)
  type: MusicAlbum
  date published: 2013-06-19
album: Your Voice,My Life
  type: MusicAlbum
  date published: 2013-10-09
album: メガラバ
  type: MusicAlbum
  date published: 2014-01-29
album: メガラバ
  type: MusicAlbum
  date published: 2014-02-05
album: ラピスラズリ
  type: MusicAlbum
  date published: 2014-03-19
album: Michishirube
  type: MusicAlbum
  date published: 2017-10-25
album: SHUT YOUR MOUTH!!!!!!
  type: MusicAlbum
  date published: 2017-11-01
album: Nanairo no Prism
  type: MusicAlbum
  date published: 2017-11-01
album: Shunkan Diamond
  type: MusicAlbum
  date published: 2017-11-01