Hideki Yamaya
type: MusicGroup
genre: medieval
popularity: 4
followers: 150
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d689eee3a86d03bece8fcb8892d8923ec49629cda5db68abeb35d3efeefa4de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6d689eee3a86d03bece8fcb8892d8923ec49629cda5db68abeb35d3efeefa4de","name":"Hideki Yamaya","registered_at":"2026-06-20T19:07:31Z","symbol":"NIM1687252","token_address":"0x3d248d1edd706f76223d2e91bacd94c1b4caac46","type":"artist","uuid":"c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6"}
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 0x6d689eee3a86d03bece8fcb8892d8923ec49629cda5db68abeb35d3efeefa4de. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6.json and https://artists.proofprofile.net/proofs/artist/c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x6d689eee3a86d03bece8fcb8892d8923ec49629cda5db68abeb35d3efeefa4de","name":"Hideki Yamaya","registered_at":"2026-06-20T19:07:31Z","symbol":"NIM1687252","token_address":"0x3d248d1edd706f76223d2e91bacd94c1b4caac46","type":"artist","uuid":"c09d0644-5ea6-42fc-8f8e-b7ba9d70cbb6"}
album: Lute Recital
  type: MusicAlbum
  date published: 2005-01-01
album: Guitar in Latin America
  type: MusicAlbum
  date published: 2005-01-01
album: Guitar In Spain
  type: MusicAlbum
  date published: 2007-03-07
album: Ludovico Roncalli - Works for Guitar
  type: MusicAlbum
  date published: 2011-04-01
album: The Archlute in 18th-Century Italy
  type: MusicAlbum
  date published: 2014-02-01