Chibi Maruko Chan
type: MusicGroup
popularity: 15
followers: 777
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe26b8aee6c95937bdb5ddbdeaac015677dfbd6d9e90da88ef65c4e8967dde122
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b25d148f-a1f1-41a0-a02d-ea41392c547e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b25d148f-a1f1-41a0-a02d-ea41392c547e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b25d148f-a1f1-41a0-a02d-ea41392c547e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe26b8aee6c95937bdb5ddbdeaac015677dfbd6d9e90da88ef65c4e8967dde122","name":"Chibi Maruko Chan","registered_at":"2026-06-14T23:09:17Z","symbol":"NIM0605867","token_address":"0xa0df0c2f5867306dfd4fa2ccb23927bb81e5c554","type":"artist","uuid":"b25d148f-a1f1-41a0-a02d-ea41392c547e"}
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 0xe26b8aee6c95937bdb5ddbdeaac015677dfbd6d9e90da88ef65c4e8967dde122. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b25d148f-a1f1-41a0-a02d-ea41392c547e.json and https://artists.proofprofile.net/proofs/artist/b25d148f-a1f1-41a0-a02d-ea41392c547e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xe26b8aee6c95937bdb5ddbdeaac015677dfbd6d9e90da88ef65c4e8967dde122","name":"Chibi Maruko Chan","registered_at":"2026-06-14T23:09:17Z","symbol":"NIM0605867","token_address":"0xa0df0c2f5867306dfd4fa2ccb23927bb81e5c554","type":"artist","uuid":"b25d148f-a1f1-41a0-a02d-ea41392c547e"}
album: Arara no Jumon
  type: MusicAlbum
  date published: 2017-11-01
  track: Arara no Jumon
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188333
    explicit: false
    by artist: Chibi Maruko Chan
    in album: Arara no Jumon
      type: MusicAlbum
      date published: 2017-11-01
    isrc code: JPPC00400920
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T07:50:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x813fb954413d59977eeb4ce7a227294cc25b91e3d52a7b9d829eaa7274d73216
    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/JPPC00400920
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T10:51:39Z
    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 0x813fb954413d59977eeb4ce7a227294cc25b91e3d52a7b9d829eaa7274d73216. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:51:39Z), 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/JPPC00400920.
      date published: 2026-07-21T10:51:39Z
    audio: Arara no Jumon
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.942
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.73
      additional property: Energy
        type: PropertyValue
        value: 0.828
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.148
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.38
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.773
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.588
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major