若林顕
type: MusicGroup
genre: classical piano
popularity: 11
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63e0393f8c1db16d121fa5bdd74ebe3587b1d09c4417480d7c380e0635494c69
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953599
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953599
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ea482ce-6ba1-44f5-9a57-ac8740dcab74.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ea482ce-6ba1-44f5-9a57-ac8740dcab74.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ea482ce-6ba1-44f5-9a57-ac8740dcab74
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:43:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63e0393f8c1db16d121fa5bdd74ebe3587b1d09c4417480d7c380e0635494c69","name":"若林顕","registered_at":"2026-06-14T05:56:05Z","symbol":"NIM0359456","token_address":"0x930aa2ced29ffdc7805d31556c61d0f4bad54e35","type":"artist","uuid":"0ea482ce-6ba1-44f5-9a57-ac8740dcab74"}
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 0x63e0393f8c1db16d121fa5bdd74ebe3587b1d09c4417480d7c380e0635494c69. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ea482ce-6ba1-44f5-9a57-ac8740dcab74.json and https://artists.proofprofile.net/proofs/artist/0ea482ce-6ba1-44f5-9a57-ac8740dcab74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:43:55Z
  text: {"copyright_id":"0x63e0393f8c1db16d121fa5bdd74ebe3587b1d09c4417480d7c380e0635494c69","name":"若林顕","registered_at":"2026-06-14T05:56:05Z","symbol":"NIM0359456","token_address":"0x930aa2ced29ffdc7805d31556c61d0f4bad54e35","type":"artist","uuid":"0ea482ce-6ba1-44f5-9a57-ac8740dcab74"}
album: チャイコフスキー：ピアノ協奏曲第 1番、他
  type: MusicAlbum
  date published: 2017-03-15