蒼井 咲（CV.関根明良）
type: MusicGroup
popularity: 4
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe89181d402ec19fda4d3cc7303fe30cb3106f9725fe74085922d1bf210ff344f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82cfbfba-b950-4e59-af93-ae3da17959e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82cfbfba-b950-4e59-af93-ae3da17959e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/82cfbfba-b950-4e59-af93-ae3da17959e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe89181d402ec19fda4d3cc7303fe30cb3106f9725fe74085922d1bf210ff344f","name":"蒼井 咲（CV.関根明良）","registered_at":"2026-06-17T11:10:39Z","symbol":"NIM1377026","token_address":"0x32bd36865c1862f4b383b55bf8898a5401878d54","type":"artist","uuid":"82cfbfba-b950-4e59-af93-ae3da17959e4"}
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 0xe89181d402ec19fda4d3cc7303fe30cb3106f9725fe74085922d1bf210ff344f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82cfbfba-b950-4e59-af93-ae3da17959e4.json and https://artists.proofprofile.net/proofs/artist/82cfbfba-b950-4e59-af93-ae3da17959e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xe89181d402ec19fda4d3cc7303fe30cb3106f9725fe74085922d1bf210ff344f","name":"蒼井 咲（CV.関根明良）","registered_at":"2026-06-17T11:10:39Z","symbol":"NIM1377026","token_address":"0x32bd36865c1862f4b383b55bf8898a5401878d54","type":"artist","uuid":"82cfbfba-b950-4e59-af93-ae3da17959e4"}
album: キミトリドリ (short ver.)
  type: MusicAlbum
  date published: 2024-11-27
  track: キミトリドリ - short ver.
    type: MusicRecording
    duration: PT1M55S
    duration ms: 115902
    explicit: false
    by artist: 蒼井 咲（CV.関根明良）
    in album: キミトリドリ (short ver.)
      type: MusicAlbum
      date published: 2024-11-27
    isrc code: JPE302400946
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T10:33:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e6ab5b01ee4b4d8875c36278f90d22b458416a902d60dce20628ebe26be92f3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE302400946
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    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 0x0e6ab5b01ee4b4d8875c36278f90d22b458416a902d60dce20628ebe26be92f3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPE302400946.
      date published: 2026-07-16T12:43:37Z
    audio: キミトリドリ - short ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.95
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.696
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.218
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.855
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major