碧陽学園生徒会
type: MusicGroup
genre: anime
popularity: 10
followers: 248
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b08c9afa9f9bcd18bf557fbd3492dd201a05965ab1f3cebb1b231e0ed8d1400
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/554df15f-eb5e-4add-9112-cdf0b6c54804.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/554df15f-eb5e-4add-9112-cdf0b6c54804.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/554df15f-eb5e-4add-9112-cdf0b6c54804
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b08c9afa9f9bcd18bf557fbd3492dd201a05965ab1f3cebb1b231e0ed8d1400","name":"碧陽学園生徒会","registered_at":"2026-06-16T19:27:19Z","symbol":"NIM1152001","token_address":"0xa451c49e744211ef9bb990b790e877b99898ef0d","type":"artist","uuid":"554df15f-eb5e-4add-9112-cdf0b6c54804"}
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 0x8b08c9afa9f9bcd18bf557fbd3492dd201a05965ab1f3cebb1b231e0ed8d1400. 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/554df15f-eb5e-4add-9112-cdf0b6c54804.json and https://artists.proofprofile.net/proofs/artist/554df15f-eb5e-4add-9112-cdf0b6c54804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x8b08c9afa9f9bcd18bf557fbd3492dd201a05965ab1f3cebb1b231e0ed8d1400","name":"碧陽学園生徒会","registered_at":"2026-06-16T19:27:19Z","symbol":"NIM1152001","token_address":"0xa451c49e744211ef9bb990b790e877b99898ef0d","type":"artist","uuid":"554df15f-eb5e-4add-9112-cdf0b6c54804"}
album: Treasure
  type: MusicAlbum
  date published: 2009-11-11
  track: Treasure
    type: MusicRecording
    duration: PT4M38S
    duration ms: 278200
    explicit: false
    by artist: 碧陽学園生徒会
    in album: Treasure
      type: MusicAlbum
      date published: 2009-11-11
    genre: anime
    isrc code: JPK270900145
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T21:17:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0cc68a68077223859e443a89e19effb871e7fd74350510f5508d28a6a60d11b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958067
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958067
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPK270900145
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:26:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc68a68077223859e443a89e19effb871e7fd74350510f5508d28a6a60d11b2. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/JPK270900145.
      date published: 2026-07-14T21:26:15Z
    audio: Treasure
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 163.053
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.388
      additional property: Energy
        type: PropertyValue
        value: 0.898
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.066
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.363
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.711
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.614
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 妄想☆ふぇてぃっしゅ！
  type: MusicAlbum
  date published: 2009-11-25