学園生活部
type: MusicGroup
genre: anime
popularity: 22
followers: 3067
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x890b9f463768b1c60809c2660c1f607ac1dfc6cc6bed180c9bcb688e0f20d8d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a291033-7db7-4e6e-af03-6f6fda4c449b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a291033-7db7-4e6e-af03-6f6fda4c449b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a291033-7db7-4e6e-af03-6f6fda4c449b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x890b9f463768b1c60809c2660c1f607ac1dfc6cc6bed180c9bcb688e0f20d8d4","name":"学園生活部","registered_at":"2026-06-11T11:26:00Z","symbol":"NIM0013324","token_address":"0xe0ffa131285387563d8d5bf3addd27e7eae31427","type":"artist","uuid":"0a291033-7db7-4e6e-af03-6f6fda4c449b"}
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 0x890b9f463768b1c60809c2660c1f607ac1dfc6cc6bed180c9bcb688e0f20d8d4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a291033-7db7-4e6e-af03-6f6fda4c449b.json and https://artists.proofprofile.net/proofs/artist/0a291033-7db7-4e6e-af03-6f6fda4c449b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x890b9f463768b1c60809c2660c1f607ac1dfc6cc6bed180c9bcb688e0f20d8d4","name":"学園生活部","registered_at":"2026-06-11T11:26:00Z","symbol":"NIM0013324","token_address":"0xe0ffa131285387563d8d5bf3addd27e7eae31427","type":"artist","uuid":"0a291033-7db7-4e6e-af03-6f6fda4c449b"}
album: 卒業あるばむ
  type: MusicAlbum
  date published: 2015
album: ふ・れ・ん・ど・し・た・い
  type: MusicAlbum
  date published: 2015
album: ふ・れ・ん・ど・し・た・い
  type: MusicAlbum
  date published: 2015-07-29
album: ふ・れ・ん・ど・し・た・い
  type: MusicAlbum
  date published: 2015-07-29
album: ふ・れ・ん・ど・し・た・い
  type: MusicAlbum
  date published: 2015-07-29
  track: Grateful Friends
    type: MusicRecording
    duration: PT4M38S
    duration ms: 278666
    explicit: false
    by artist: 学園生活部
    in album: ふ・れ・ん・ど・し・た・い
      type: MusicAlbum
      date published: 2015-07-29
    genre: anime
    isrc code: JPPI01552000
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:53:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc8d16f2bc42351f506a0cd0eff88fcd0e66c78885658d5d2fc05b595d682e659
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI01552000
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0xc8d16f2bc42351f506a0cd0eff88fcd0e66c78885658d5d2fc05b595d682e659. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPPI01552000.
      date published: 2026-07-05T04:47:21Z
    audio: Grateful Friends
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.604
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.42
      additional property: Energy
        type: PropertyValue
        value: 0.981
      additional property: Speechiness
        type: PropertyValue
        value: 0.182
      additional property: Acousticness
        type: PropertyValue
        value: 0.164
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.398
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.573
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.16
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 卒業あるばむ
  type: MusicAlbum
  date published: 2015-10-28
album: 卒業あるばむ
  type: MusicAlbum
  date published: 2015-10-28