タントラ 雪村
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2dad4b85281a86ffa2e8ec850773fbf9c98f2a1a61c88b8a649ded238820f49e
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/3e79fc09-a38c-446d-bc95-94c6bd0ead22.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e79fc09-a38c-446d-bc95-94c6bd0ead22.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e79fc09-a38c-446d-bc95-94c6bd0ead22
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2dad4b85281a86ffa2e8ec850773fbf9c98f2a1a61c88b8a649ded238820f49e","name":"タントラ 雪村","registered_at":"2026-06-16T11:38:54Z","symbol":"NIM1040247","token_address":"0xdca9b94148ba6fcc06a847a261d781c547a07541","type":"artist","uuid":"3e79fc09-a38c-446d-bc95-94c6bd0ead22"}
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 0x2dad4b85281a86ffa2e8ec850773fbf9c98f2a1a61c88b8a649ded238820f49e. 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/3e79fc09-a38c-446d-bc95-94c6bd0ead22.json and https://artists.proofprofile.net/proofs/artist/3e79fc09-a38c-446d-bc95-94c6bd0ead22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2dad4b85281a86ffa2e8ec850773fbf9c98f2a1a61c88b8a649ded238820f49e","name":"タントラ 雪村","registered_at":"2026-06-16T11:38:54Z","symbol":"NIM1040247","token_address":"0xdca9b94148ba6fcc06a847a261d781c547a07541","type":"artist","uuid":"3e79fc09-a38c-446d-bc95-94c6bd0ead22"}
album: タントラチルアウト：官能的な音楽・心地良い・愛・カップル・セクシー
  type: MusicAlbum
  date published: 2021-07-27
  track: 純粋な心
    type: MusicRecording
    duration: PT5M41S
    duration ms: 341469
    explicit: false
    by artist: タントラ 雪村
    in album: タントラチルアウト：官能的な音楽・心地良い・愛・カップル・セクシー
      type: MusicAlbum
      date published: 2021-07-27
    isrc code: ITO101627300
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:42:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x684e468ac3128f337aba33c77154805cbb7b8173bdde35b9c89a38a02af11f24
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958901
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958901
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101627300
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:45:39Z
    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 0x684e468ac3128f337aba33c77154805cbb7b8173bdde35b9c89a38a02af11f24. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:39Z), 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/ITO101627300.
      date published: 2026-07-20T16:45:39Z
    audio: 純粋な心
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 52.625
      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: 0.059
      additional property: Energy
        type: PropertyValue
        value: 0.083
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.95
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.917
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.129
      additional property: Loudness (dB)
        type: PropertyValue
        value: -24.24
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor