はらぺこグルメ日記
type: MusicGroup
popularity: 7
followers: 212
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3a2dfb48ab2175afaf61fcbae8707005ff6a3b7946c5b64cef78b4687e89e03
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/750e1b3c-730c-4196-98bd-eae764b172da.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/750e1b3c-730c-4196-98bd-eae764b172da.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/750e1b3c-730c-4196-98bd-eae764b172da
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3a2dfb48ab2175afaf61fcbae8707005ff6a3b7946c5b64cef78b4687e89e03","name":"はらぺこグルメ日記","registered_at":"2026-06-17T06:29:48Z","symbol":"NIM1310089","token_address":"0xc86f277ebdd3c8ed50851b0cffd92d3780280d74","type":"artist","uuid":"750e1b3c-730c-4196-98bd-eae764b172da"}
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 0xb3a2dfb48ab2175afaf61fcbae8707005ff6a3b7946c5b64cef78b4687e89e03. 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/750e1b3c-730c-4196-98bd-eae764b172da.json and https://artists.proofprofile.net/proofs/artist/750e1b3c-730c-4196-98bd-eae764b172da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb3a2dfb48ab2175afaf61fcbae8707005ff6a3b7946c5b64cef78b4687e89e03","name":"はらぺこグルメ日記","registered_at":"2026-06-17T06:29:48Z","symbol":"NIM1310089","token_address":"0xc86f277ebdd3c8ed50851b0cffd92d3780280d74","type":"artist","uuid":"750e1b3c-730c-4196-98bd-eae764b172da"}
album: pecopeco
  type: MusicAlbum
  date published: 2023-10-31
album: Gourmet diary
  type: MusicAlbum
  date published: 2023-11-06
album: I'm hungry
  type: MusicAlbum
  date published: 2023-12-11
album: nostalgie
  type: MusicAlbum
  date published: 2023-12-11
  track: nostalgie
    type: MusicRecording
    duration: PT1M3S
    duration ms: 63648
    explicit: false
    by artist: はらぺこグルメ日記
    in album: nostalgie
      type: MusicAlbum
      date published: 2023-12-11
    isrc code: JP92N2385395
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T00:38:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e96be81aa56c2be6e5c0190e7046f0196276795e60dfaeb11bdf2760183465f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958095
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958095
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2385395
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T04:30:08Z
    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 0x5e96be81aa56c2be6e5c0190e7046f0196276795e60dfaeb11bdf2760183465f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JP92N2385395.
      date published: 2026-07-15T04:30:08Z
    audio: nostalgie
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 168.08
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.619
      additional property: Energy
        type: PropertyValue
        value: 0.495
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.215
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.741
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.745
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.854
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: elegant
  type: MusicAlbum
  date published: 2023-12-11
album: 雨のち晴れ
  type: MusicAlbum
  date published: 2024-10-23