F.Koshiba(wandererP)
type: MusicGroup
genre: vocaloid
popularity: 5
followers: 1172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71ed4b6cf122ed4555e915a7d73d151b8b92048e0946384881019c623868dbf9
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/564c0a61-955e-4b64-955d-b97d5076430b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/564c0a61-955e-4b64-955d-b97d5076430b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/564c0a61-955e-4b64-955d-b97d5076430b
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 0x71ed4b6cf122ed4555e915a7d73d151b8b92048e0946384881019c623868dbf9. 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/564c0a61-955e-4b64-955d-b97d5076430b.json and https://artists.proofprofile.net/proofs/artist/564c0a61-955e-4b64-955d-b97d5076430b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: からくり時計と恋の話
  type: MusicAlbum
  date published: 2013-04-12
album: 青の巡歴
  type: MusicAlbum
  date published: 2014-02-17
album: 暮れなずむ空より、明けやらぬ地の君を想いて
  type: MusicAlbum
  date published: 2017-06-14
album: 混沌
  type: MusicAlbum
  date published: 2017-09-20
album: 今も何処かで
  type: MusicAlbum
  date published: 2019-02-12
album: 時結ぶ歌
  type: MusicAlbum
  date published: 2020-02-14
album: 恋草ばやし
  type: MusicAlbum
  date published: 2020-05-13
album: 愚足武者 ～青～
  type: MusicAlbum
  date published: 2021-02-15
album: Blue Blue Baby
  type: MusicAlbum
  date published: 2024-02-14