じぐざぐづ
type: MusicGroup
popularity: 4
followers: 276
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x191e9b478a96f4c592b7f2b3417c8a4e4981baff1cde69f1101f3a65474cec1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a76ab887-fd02-4163-ba81-414423c6f4ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a76ab887-fd02-4163-ba81-414423c6f4ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a76ab887-fd02-4163-ba81-414423c6f4ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x191e9b478a96f4c592b7f2b3417c8a4e4981baff1cde69f1101f3a65474cec1f","name":"じぐざぐづ","registered_at":"2026-06-20T08:12:03Z","symbol":"NIM1562797","token_address":"0xce9db103b987757e7b9d0af42e59dd73c4be97ff","type":"artist","uuid":"a76ab887-fd02-4163-ba81-414423c6f4ec"}
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 0x191e9b478a96f4c592b7f2b3417c8a4e4981baff1cde69f1101f3a65474cec1f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a76ab887-fd02-4163-ba81-414423c6f4ec.json and https://artists.proofprofile.net/proofs/artist/a76ab887-fd02-4163-ba81-414423c6f4ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x191e9b478a96f4c592b7f2b3417c8a4e4981baff1cde69f1101f3a65474cec1f","name":"じぐざぐづ","registered_at":"2026-06-20T08:12:03Z","symbol":"NIM1562797","token_address":"0xce9db103b987757e7b9d0af42e59dd73c4be97ff","type":"artist","uuid":"a76ab887-fd02-4163-ba81-414423c6f4ec"}
album: さよならエリカ
  type: MusicAlbum
  date published: 2024-06-12
  track: さよならエリカ
    type: MusicRecording
    duration: PT4M23S
    duration ms: 263441
    explicit: false
    by artist: じぐざぐづ
    in album: さよならエリカ
      type: MusicAlbum
      date published: 2024-06-12
    isrc code: TCJPA2446074
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T15:46:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaf51898de017641194b36644c833ad8a423b1f9efdaaaf454337231ec733dab3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2446074
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T16:23:52Z
    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 0xaf51898de017641194b36644c833ad8a423b1f9efdaaaf454337231ec733dab3. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/TCJPA2446074.
      date published: 2026-07-22T16:23:52Z
    audio: さよならエリカ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 163.903
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.559
      additional property: Energy
        type: PropertyValue
        value: 0.441
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.71
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.118
      additional property: Liveness
        type: PropertyValue
        value: 0.147
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.318
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.423
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Two Birds
  type: MusicAlbum
  date published: 2024-08-21
album: アロワナ
  type: MusicAlbum
  date published: 2024-12-04
album: 夜明けの唄
  type: MusicAlbum
  date published: 2025-03-19