EIGHT OF TRIANGLE
type: MusicGroup
popularity: 2
followers: 234
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x517b079cab1a5d8665b80f943934d15a91dcaffb97bd2b6503408f645c8edbb2
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/56d1b15c-f23e-440c-b7c5-ce9649d35140.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56d1b15c-f23e-440c-b7c5-ce9649d35140.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56d1b15c-f23e-440c-b7c5-ce9649d35140
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x517b079cab1a5d8665b80f943934d15a91dcaffb97bd2b6503408f645c8edbb2","name":"EIGHT OF TRIANGLE","registered_at":"2026-06-16T19:49:45Z","symbol":"NIM1157353","token_address":"0xc2a5918f4325cc7ce59f28052a8be31bd08466db","type":"artist","uuid":"56d1b15c-f23e-440c-b7c5-ce9649d35140"}
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 0x517b079cab1a5d8665b80f943934d15a91dcaffb97bd2b6503408f645c8edbb2. 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/56d1b15c-f23e-440c-b7c5-ce9649d35140.json and https://artists.proofprofile.net/proofs/artist/56d1b15c-f23e-440c-b7c5-ce9649d35140.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x517b079cab1a5d8665b80f943934d15a91dcaffb97bd2b6503408f645c8edbb2","name":"EIGHT OF TRIANGLE","registered_at":"2026-06-16T19:49:45Z","symbol":"NIM1157353","token_address":"0xc2a5918f4325cc7ce59f28052a8be31bd08466db","type":"artist","uuid":"56d1b15c-f23e-440c-b7c5-ce9649d35140"}
album: heart to erode
  type: MusicAlbum
  date published: 2015-11-04
album: THE TRIANGLE
  type: MusicAlbum
  date published: 2016-03-23
album: THE TRIANGLE
  type: MusicAlbum
  date published: 2016-03-23
album: 「誇れ 気高き 美しき、いきざまを」 (TV-Size)
  type: MusicAlbum
  date published: 2018-10-05
album: 誇れ 気高き 美しき、いきざまを
  type: MusicAlbum
  date published: 2018-12-05
album: 誇れ 気高き 美しき、いきざまを
  type: MusicAlbum
  date published: 2018-12-05
album: 誇れ 気高き 美しき、いきざまを
  type: MusicAlbum
  date published: 2018-12-05
  track: 誇れ 気高き 美しき、いきざまを
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212200
    explicit: false
    by artist: EIGHT OF TRIANGLE
    in album: 誇れ 気高き 美しき、いきざまを
      type: MusicAlbum
      date published: 2018-12-05
    isrc code: JPB601803237
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T15:11:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x67f40ba19353dbc73c7375ec74213ef27e865f383fa2dd451712f07c0b47e42f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959144
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959144
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601803237
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:38:35Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x67f40ba19353dbc73c7375ec74213ef27e865f383fa2dd451712f07c0b47e42f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601803237.
      date published: 2026-07-22T15:38:35Z
    audio: 誇れ 気高き 美しき、いきざまを
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.121
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.395
      additional property: Energy
        type: PropertyValue
        value: 0.983
      additional property: Speechiness
        type: PropertyValue
        value: 0.186
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.342
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.494
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.546
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: FLASH
  type: MusicAlbum
  date published: 2019-07-07
album: ミラーガール
  type: MusicAlbum
  date published: 2019-09-04
album: Don't Cry
  type: MusicAlbum
  date published: 2020-03-28
album: Don't Cry
  type: MusicAlbum
  date published: 2020-03-28