Lullabies 4 Sleep
type: MusicGroup
popularity: 2
followers: 1
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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 0xeba5d76434f759f627ed2e16b06d0a10a5ad4b784f6d00aefe6fa27d8b61397a. 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/6b4170cd-d1c4-4243-935a-1fbcf0a6d3fe.json and https://artists.proofprofile.net/proofs/artist/6b4170cd-d1c4-4243-935a-1fbcf0a6d3fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Baby Sleep Sounds & Loopable Asmr Lullaby Nature Noises
  type: MusicAlbum
  date published: 2023-06-22
  track: Calm Breathing Sound For Sleep
    type: MusicRecording
    duration: PT2M16S
    duration ms: 136233
    explicit: false
    by artist: Lullabies 4 Sleep
    in album: Baby Sleep Sounds & Loopable Asmr Lullaby Nature Noises
      type: MusicAlbum
      date published: 2023-06-22
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    additional property: OTSTimestamp
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71df88f21676d8b9e558cd4ab634c923b6eb0510c3c33d4955983d7af83be64e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:18:33Z), 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/DEZC62355260.
      date published: 2026-07-19T16:18:33Z
    audio: Calm Breathing Sound For Sleep
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.03
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.94
      additional property: Key Name
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        value: F
      additional property: Mode Name
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        value: Minor