logical emotion
type: MusicGroup
genre: vocaloid
popularity: 5
followers: 790
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1fda5982915c1cea62aa3fb67ed35bbb64e534056cf1c566064917ea0f4286c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98c4e345-3dfd-42da-91e4-d58494b0d132.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98c4e345-3dfd-42da-91e4-d58494b0d132.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98c4e345-3dfd-42da-91e4-d58494b0d132
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa1fda5982915c1cea62aa3fb67ed35bbb64e534056cf1c566064917ea0f4286c","name":"logical emotion","registered_at":"2026-06-17T19:02:04Z","symbol":"NIM1489454","token_address":"0x912bacd9c92e5ee8a51008fb0165205932af16c2","type":"artist","uuid":"98c4e345-3dfd-42da-91e4-d58494b0d132"}
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 0xa1fda5982915c1cea62aa3fb67ed35bbb64e534056cf1c566064917ea0f4286c. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98c4e345-3dfd-42da-91e4-d58494b0d132.json and https://artists.proofprofile.net/proofs/artist/98c4e345-3dfd-42da-91e4-d58494b0d132.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xa1fda5982915c1cea62aa3fb67ed35bbb64e534056cf1c566064917ea0f4286c","name":"logical emotion","registered_at":"2026-06-17T19:02:04Z","symbol":"NIM1489454","token_address":"0x912bacd9c92e5ee8a51008fb0165205932af16c2","type":"artist","uuid":"98c4e345-3dfd-42da-91e4-d58494b0d132"}
album: LOGISTIC FUNCTION 〜VOCALOID SONGS COMPILATION〜
  type: MusicAlbum
  date published: 2015-02-18
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  type: MusicAlbum
  date published: 2016-04-27
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  type: MusicAlbum
  date published: 2022-06-29
album: STAYING ALIVE ～LOGISTIC FUNCTION 1.1～
  type: MusicAlbum
  date published: 2025-06-25