ブリーフ団
type: MusicGroup
popularity: 2
followers: 150
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x873dd91042b292ac01f76c6023cb3fabb09d00a92f33fe6a974ec92e6649a9ea
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/4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x873dd91042b292ac01f76c6023cb3fabb09d00a92f33fe6a974ec92e6649a9ea","name":"ブリーフ団","registered_at":"2026-06-16T17:29:00Z","symbol":"NIM1123775","token_address":"0x10f0608776863afa191ce8859423f6d446064dc2","type":"artist","uuid":"4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96"}
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 0x873dd91042b292ac01f76c6023cb3fabb09d00a92f33fe6a974ec92e6649a9ea. 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/4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96.json and https://artists.proofprofile.net/proofs/artist/4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x873dd91042b292ac01f76c6023cb3fabb09d00a92f33fe6a974ec92e6649a9ea","name":"ブリーフ団","registered_at":"2026-06-16T17:29:00Z","symbol":"NIM1123775","token_address":"0x10f0608776863afa191ce8859423f6d446064dc2","type":"artist","uuid":"4fd233ae-33d6-45e0-a5c9-dd86ebe5cc96"}
album: 永遠のブー
  type: MusicAlbum
  date published: 2024-08-02
  track: 永遠のブー
    type: MusicRecording
    duration: PT4M59S
    duration ms: 299478
    explicit: false
    by artist: ブリーフ団
    in album: 永遠のブー
      type: MusicAlbum
      date published: 2024-08-02
    isrc code: TCJPB2435659
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T05:49:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5419f5d8e7f1ee5271fe56d949242f0ef17f7cc8a6bc9e448b5e05d43b3e8317
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2435659
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x5419f5d8e7f1ee5271fe56d949242f0ef17f7cc8a6bc9e448b5e05d43b3e8317. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPB2435659.
      date published: 2026-07-06T06:56:49Z
    audio: 永遠のブー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.021
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.589
      additional property: Energy
        type: PropertyValue
        value: 0.808
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.024
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.052
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.665
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.935
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ブリーフの風 〜SEA BRIEFS〜
  type: MusicAlbum
  date published: 2024-08-02