Volume 4
type: MusicGroup
genre: kuduro
description: Volume Four, Volume 4, or Volume IV may refer to: Music Lucio Battisti Vol. 4, Lucio Battisti's fourth album, released in 1971 Vol. 4 (Black Sabbath album), Black Sabbath's fourth studio album, relea
popularity: 3
followers: 679
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additional property: CopyrightChainExplorerURL
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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 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 0xfd006e803ff48ad865d06ff84f938f98ff4924552d6ba621e9ebafadd683a2bc. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e31501e9-c998-4079-a1a8-60dc8d78bc7c.json and https://artists.proofprofile.net/proofs/artist/e31501e9-c998-4079-a1a8-60dc8d78bc7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
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album: Sms
  type: MusicAlbum
  date published: 2023-03-02
  track: Não Julguem o Ciente
    type: MusicRecording
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    duration ms: 322247
    explicit: false
    by artist: Volume 4
    in album: Sms
      type: MusicAlbum
      date published: 2023-03-02
    genre: kuduro
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    additional property: OTSTimestamp
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    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
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042e2723e97dd2062438d9d9ab5552a4fab03a5f5459cfe836e341aefb0583ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ5AB2343707.
      date published: 2026-07-05T18:48:28Z
    audio: Não Julguem o Ciente
      type: AudioObject
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      additional property: Mode (Major/Minor)
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      additional property: Danceability
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      additional property: Energy
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.816
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Obrigado Papa Chá Doce
  type: MusicAlbum
  date published: 2023-12-16