Sleeping Kappa Relax Music
type: MusicGroup
popularity: 3
followers: 6
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/953970
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/29ff7b9f-c930-4322-989a-9a662f24df04.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/29ff7b9f-c930-4322-989a-9a662f24df04.json
additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ef0f1fa285fb6d96e5125e45d636a48962a943c4744c9ab190e30c85f0e288. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29ff7b9f-c930-4322-989a-9a662f24df04.json and https://artists.proofprofile.net/proofs/artist/29ff7b9f-c930-4322-989a-9a662f24df04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:31:10Z
  text: {"copyright_id":"0xd6ef0f1fa285fb6d96e5125e45d636a48962a943c4744c9ab190e30c85f0e288","name":"Sleeping Kappa Relax Music","registered_at":"2026-06-16T04:07:52Z","symbol":"NIM0932571","token_address":"0x1c178ae0841460ab2d82b89c16f1059731073a07","type":"artist","uuid":"29ff7b9f-c930-4322-989a-9a662f24df04"}
album: 睡眠音樂一秒入睡! 兩小時無廣告睡眠音樂,放鬆音樂 療癒音樂，音樂治療,寵物聽了也陪您入睡的鋼琴曲輕音樂...
  type: MusicAlbum
  date published: 2024-01-14
  track: 睡眠音樂一秒入睡! 兩小時無廣告睡眠音樂,放鬆音樂 療癒音樂，音樂治療,寵物聽了也陪您入睡的鋼琴曲輕音樂...
    type: MusicRecording
    duration: PT141M1S
    duration ms: 8461700
    explicit: false
    by artist: Sleeping Kappa Relax Music
    in album: 睡眠音樂一秒入睡! 兩小時無廣告睡眠音樂,放鬆音樂 療癒音樂，音樂治療,寵物聽了也陪您入睡的鋼琴曲輕音樂...
      type: MusicAlbum
      date published: 2024-01-14
    isrc code: QZFYY2493073
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    additional property: CopyrightStatus
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      value: registered
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958860
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2493073
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:58:28Z
    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 0x329b66c18028da8ffde2e3a431dd3c645720b7e9f14e49667cb3f85c26880ee9. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZFYY2493073.
      date published: 2026-07-20T09:58:28Z
    audio: 睡眠音樂一秒入睡! 兩小時無廣告睡眠音樂,放鬆音樂 療癒音樂，音樂治療,寵物聽了也陪您入睡的鋼琴曲輕音樂...
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 50
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0
      additional property: Energy
        type: PropertyValue
        value: 0
      additional property: Speechiness
        type: PropertyValue
        value: 0
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.615
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 睡眠音樂一秒入睡! !無廣告 ,兩小時睡眠音樂,放鬆音樂 療癒音樂，音樂治療,您寵物聽了也陪您入眠的鋼琴曲輕音樂...
  type: MusicAlbum
  date published: 2024-05-31
album: 秒睡進入夢鄉！！120分鐘不間斷睡眠音樂，療癒音樂，音樂治療，讓您的毛小孩陪伴您一起入夢！！
  type: MusicAlbum
  date published: 2024-10-08
album: 「秒睡開關！今晚，和貓貓一起睡吧！」「120分鐘大腦×毛孩陪睡音療x深度睡眠鋼琴/睡眠/貓咪/療癒/ASMR/白噪音/睡眠音樂/胎教音樂/專注力
  type: MusicAlbum
  date published: 2025-04-13