A SCHOOL
type: MusicGroup
popularity: 3
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc822e5978eb6c65921ccd32b2539f7ee8a02be8767e330bc76ca5261350e5473
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b7bfb76-9b98-437f-ab6b-a715f2b89c3f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b7bfb76-9b98-437f-ab6b-a715f2b89c3f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b7bfb76-9b98-437f-ab6b-a715f2b89c3f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc822e5978eb6c65921ccd32b2539f7ee8a02be8767e330bc76ca5261350e5473","name":"A SCHOOL","registered_at":"2026-06-17T03:05:47Z","symbol":"NIM1261382","token_address":"0x1ee8e4553bca15384604bbc0f257734e042062e2","type":"artist","uuid":"6b7bfb76-9b98-437f-ab6b-a715f2b89c3f"}
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 0xc822e5978eb6c65921ccd32b2539f7ee8a02be8767e330bc76ca5261350e5473. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b7bfb76-9b98-437f-ab6b-a715f2b89c3f.json and https://artists.proofprofile.net/proofs/artist/6b7bfb76-9b98-437f-ab6b-a715f2b89c3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc822e5978eb6c65921ccd32b2539f7ee8a02be8767e330bc76ca5261350e5473","name":"A SCHOOL","registered_at":"2026-06-17T03:05:47Z","symbol":"NIM1261382","token_address":"0x1ee8e4553bca15384604bbc0f257734e042062e2","type":"artist","uuid":"6b7bfb76-9b98-437f-ab6b-a715f2b89c3f"}
album: futen dance (feat. KIBAKO & aruma)
  type: MusicAlbum
  date published: 2024-02-14
album: your future (feat. osaya & hakukatobi)
  type: MusicAlbum
  date published: 2024-03-01
  track: your future (feat. osaya & hakukatobi)
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236833
    explicit: false
    by artist: A SCHOOL
    in album: your future (feat. osaya & hakukatobi)
      type: MusicAlbum
      date published: 2024-03-01
    isrc code: TCJPZ2436394
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:24:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0c83570371de25abec4feedccb1dedbcc87b9b66c29b904f1ecd189161e35fe9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPZ2436394
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:04:56Z
    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 0x0c83570371de25abec4feedccb1dedbcc87b9b66c29b904f1ecd189161e35fe9. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCJPZ2436394.
      date published: 2026-07-21T09:04:56Z
    audio: your future (feat. osaya & hakukatobi)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.031
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.511
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.105
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.152
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.296
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.631
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major