劇団ナイアガラ
type: MusicGroup
genre: anime
popularity: 14
followers: 403
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f661ed720b66179f7d0e9362d3a6b3c884817bfa1eb6d67e278b5aa8e8fbd0. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6.json and https://artists.proofprofile.net/proofs/artist/f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0xf8f661ed720b66179f7d0e9362d3a6b3c884817bfa1eb6d67e278b5aa8e8fbd0","name":"劇団ナイアガラ","registered_at":"2026-06-15T06:36:51Z","symbol":"NIM0712762","token_address":"0x1568462bba59f15a7731427917e5e7a71a93582a","type":"artist","uuid":"f8ca5ca2-2ad9-4402-ae41-9a93794f2cf6"}
album: ハナテ
  type: MusicAlbum
  date published: 2015-05-27
album: ハナテ
  type: MusicAlbum
  date published: 2015-05-27
track: ハナテ（TVサイズ）

ハナテ（TVサイズ）
type: MusicRecording
duration: PT1M32S
duration ms: 92106
explicit: false
by artist: 劇団ナイアガラ
in album: 「遊☆戯☆王ＡＲＣ-Ｖ」SOUND DUEL３
  type: MusicAlbum
  date published: 2015-06-24
isrc code: JPD601500102
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD601500102
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6662c163f56396c13882b04d799175e8f2682551a9760fffb6b221667683b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPD601500102.
  date published: 2026-07-02T03:55:08Z
audio: ハナテ（TVサイズ）
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.239
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.933
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.054
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.596
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.988
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major