信長と蘭丸
type: MusicGroup
popularity: 3
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x979446174b1b0a851314d00e85b49e4c8009676eaf0695fbfb30adba0da68b95
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/6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x979446174b1b0a851314d00e85b49e4c8009676eaf0695fbfb30adba0da68b95","name":"信長と蘭丸","registered_at":"2026-06-17T03:22:59Z","symbol":"NIM1265488","token_address":"0x5f4969d437b1b8de3e621d69885f3bf566516499","type":"artist","uuid":"6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c"}
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 0x979446174b1b0a851314d00e85b49e4c8009676eaf0695fbfb30adba0da68b95. 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/6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c.json and https://artists.proofprofile.net/proofs/artist/6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x979446174b1b0a851314d00e85b49e4c8009676eaf0695fbfb30adba0da68b95","name":"信長と蘭丸","registered_at":"2026-06-17T03:22:59Z","symbol":"NIM1265488","token_address":"0x5f4969d437b1b8de3e621d69885f3bf566516499","type":"artist","uuid":"6b4eaed5-1c47-4fea-8bd1-5fa87ffe5a7c"}
album: 敦盛2021
  type: MusicAlbum
  date published: 2021-05-12
  track: 敦盛2021
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213297
    explicit: false
    by artist: 信長と蘭丸
    in album: 敦盛2021
      type: MusicAlbum
      date published: 2021-05-12
    isrc code: JPKI02111672
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T01:04:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5f48f6972dbeeffb37a4ef6f5c46f72e59aabfc4cacbafd418eaa4aad100b57e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI02111672
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f48f6972dbeeffb37a4ef6f5c46f72e59aabfc4cacbafd418eaa4aad100b57e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPKI02111672.
      date published: 2026-07-19T07:14:39Z
    audio: 敦盛2021
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.017
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.93
      additional property: Speechiness
        type: PropertyValue
        value: 0.102
      additional property: Acousticness
        type: PropertyValue
        value: 0.028
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.343
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.698
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.571
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 敦盛2021 オーケストラVer.
  type: MusicAlbum
  date published: 2021-07-10