kiyuka
type: MusicGroup
popularity: 3
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b2b93346c9639d7c64cc9afa6ef56098af02c651d3e98cb72a61f99ed0b4b59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cb2a3df-1929-496e-8352-8ce2827f7683.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cb2a3df-1929-496e-8352-8ce2827f7683.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cb2a3df-1929-496e-8352-8ce2827f7683
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x5b2b93346c9639d7c64cc9afa6ef56098af02c651d3e98cb72a61f99ed0b4b59. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cb2a3df-1929-496e-8352-8ce2827f7683.json and https://artists.proofprofile.net/proofs/artist/4cb2a3df-1929-496e-8352-8ce2827f7683.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Candle
  type: MusicAlbum
  date published: 2020-10-11
album: humming of summer
  type: MusicAlbum
  date published: 2021-09-05
album: Polish
  type: MusicAlbum
  date published: 2021-12-26
album: The Ring
  type: MusicAlbum
  date published: 2022-02-27
album: after the past love
  type: MusicAlbum
  date published: 2022-05-30
album: Who I really am
  type: MusicAlbum
  date published: 2022-12-25
album: My Hero
  type: MusicAlbum
  date published: 2023-09-24
album: ひとりごと
  type: MusicAlbum
  date published: 2023-10-30
album: Whispered secrets
  type: MusicAlbum
  date published: 2023-10-30
album: Voyage
  type: MusicAlbum
  date published: 2023-12-10
album: Boyage (band ver.)
  type: MusicAlbum
  date published: 2024-02-26
album: Feel how you feel
  type: MusicAlbum
  date published: 2024-09-24
album: 心のままに
  type: MusicAlbum
  date published: 2024-09-24
album: 物語のある星
  type: MusicAlbum
  date published: 2024-10-12
album: A Star Filled with Tales
  type: MusicAlbum
  date published: 2024-10-12
album: タイムカプセル
  type: MusicAlbum
  date published: 2025-05-18
album: timecapsule
  type: MusicAlbum
  date published: 2025-05-18
album: うたごえ
  type: MusicAlbum
  date published: 2025-08-30
album: Utagoe
  type: MusicAlbum
  date published: 2025-08-30
album: 街とその音
  type: MusicAlbum
  date published: 2025-10-12
album: Resonance Within the City
  type: MusicAlbum
  date published: 2025-10-12
album: タイムカプセルの中
  type: MusicAlbum
  date published: 2025-10-18
album: Inside a Time Capsule
  type: MusicAlbum
  date published: 2025-10-18