Akira Takahashi
type: MusicGroup
popularity: 22
followers: 879
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2aca38a9be6b954bbc10a1480ce6af75f262f724e0344b1b7bd078cb3d6a08e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8587007-1c2d-4b56-8a6e-03d5a1f5173d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8587007-1c2d-4b56-8a6e-03d5a1f5173d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8587007-1c2d-4b56-8a6e-03d5a1f5173d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2aca38a9be6b954bbc10a1480ce6af75f262f724e0344b1b7bd078cb3d6a08e2","name":"Akira Takahashi","registered_at":"2026-06-12T09:35:27Z","symbol":"NIM0257823","token_address":"0xc72e17dcabb3cfae795bff40d80a9907f7f5b41f","type":"artist","uuid":"c8587007-1c2d-4b56-8a6e-03d5a1f5173d"}
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 0x2aca38a9be6b954bbc10a1480ce6af75f262f724e0344b1b7bd078cb3d6a08e2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8587007-1c2d-4b56-8a6e-03d5a1f5173d.json and https://artists.proofprofile.net/proofs/artist/c8587007-1c2d-4b56-8a6e-03d5a1f5173d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x2aca38a9be6b954bbc10a1480ce6af75f262f724e0344b1b7bd078cb3d6a08e2","name":"Akira Takahashi","registered_at":"2026-06-12T09:35:27Z","symbol":"NIM0257823","token_address":"0xc72e17dcabb3cfae795bff40d80a9907f7f5b41f","type":"artist","uuid":"c8587007-1c2d-4b56-8a6e-03d5a1f5173d"}
album: Pray for World Peace from Hiroshima (Atomic Bomb Piano)
  type: MusicAlbum
  date published: 2011
album: INORI
  type: MusicAlbum
  date published: 2011
album: Dance of Silhouette
  type: MusicAlbum
  date published: 2014-01-24
album: RETURN TO OURSELVES
  type: MusicAlbum
  date published: 2015
album: So Far Away - so close to me -
  type: MusicAlbum
  date published: 2016
album: Torus.1
  type: MusicAlbum
  date published: 2018-12-11
album: Praying Piano Improvisation, Vol.1
  type: MusicAlbum
  date published: 2019-02-04