Syakari
type: MusicGroup
genre: kayokyoku
popularity: 4
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c33fc28468366cf1fa582e4bd0c210df04682e66f4e701c1e5b6d0a1b51f42c
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/53da5023-f680-4a2d-ac58-466491ebe79f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53da5023-f680-4a2d-ac58-466491ebe79f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53da5023-f680-4a2d-ac58-466491ebe79f
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c33fc28468366cf1fa582e4bd0c210df04682e66f4e701c1e5b6d0a1b51f42c. 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/53da5023-f680-4a2d-ac58-466491ebe79f.json and https://artists.proofprofile.net/proofs/artist/53da5023-f680-4a2d-ac58-466491ebe79f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: かふう
  type: MusicAlbum
  date published: 2008-02-06
album: 結まーる
  type: MusicAlbum
  date published: 2009-09-16
album: 笑って
  type: MusicAlbum
  date published: 2011-07-06
album: Life
  type: MusicAlbum
  date published: 2015-10-14
album: ALL TIME BEST ALBUM
  type: MusicAlbum
  date published: 2018-02-21
album: えにし
  type: MusicAlbum
  date published: 2018-11-23