KMM団 (倉石たんぽぽ (CV.井澤詩織)、宇津木環那 (CV.夏川椎菜)、飾鈴 (CV.麻倉もも)、桂虎徹 (CV.日岡なつみ)、目野輪冥 (CV.飯田友子))
type: MusicGroup
genre: anime
track: ウィッチ☆アクティビティ
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  by artist: KMM団 (倉石たんぽぽ (CV.井澤詩織)、宇津木環那 (CV.夏川椎菜)、飾鈴 (CV.麻倉もも)、桂虎徹 (CV.日岡なつみ)、目野輪冥 (CV.飯田友子))
  in album: MUSIC FOR ANIMATIONS (Lantis Edition)
    type: MusicAlbum
    date published: 2019-03-27
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101400017
  additional property: OTSTimestamp
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    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
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    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b761e52746a4b4a3e203875a31dae0c11f7dd417b420aa6e48957a846b6528. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI101400017.
    date published: 2026-06-13T13:32:09Z
  audio: ウィッチ☆アクティビティ
    type: AudioObject
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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