Marc Ventus
type: MusicGroup
popularity: 50
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953407
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c1c19003-c288-4514-8fe5-94e8929b3ab0.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c1c19003-c288-4514-8fe5-94e8929b3ab0
additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
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 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 0xd45054ccb6b4f89348fcbc8d8435f74c0e2579de40fdfa87da3f46bb20837739. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1c19003-c288-4514-8fe5-94e8929b3ab0.json and https://artists.proofprofile.net/proofs/artist/c1c19003-c288-4514-8fe5-94e8929b3ab0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xd45054ccb6b4f89348fcbc8d8435f74c0e2579de40fdfa87da3f46bb20837739","name":"Marc Ventus","registered_at":"2026-06-12T08:56:46Z","symbol":"NIM0248842","token_address":"0xe4204f4d45f227edc73cb43e338e429ed929931c","type":"artist","uuid":"c1c19003-c288-4514-8fe5-94e8929b3ab0"}
album: Now We Are Free (Relaxing Piano Version)
  type: MusicAlbum
  date published: 2025-01-06
album: The Shire
  type: MusicAlbum
  date published: 2025-01-08
album: As It Goes
  type: MusicAlbum
  date published: 2025-01-13
album: The Golden Moon
  type: MusicAlbum
  date published: 2025-01-16
album: Calming Piano Days or Nights
  type: MusicAlbum
  date published: 2025-01-20
album: Piano covers of dreams we love
  type: MusicAlbum
  date published: 2025-02-10
album: Beautiful Piano Covers
  type: MusicAlbum
  date published: 2025-02-27
album: Faded (Piano Version)
  type: MusicAlbum
  date published: 2025-03-24
album: Love Power (Piano Version)
  type: MusicAlbum
  date published: 2025-03-31
album: Good 4 That (Piano Version)
  type: MusicAlbum
  date published: 2025-07-07
album: All My feelings (Piano Version)
  type: MusicAlbum
  date published: 2025-07-14
album: Glowing Saxophone Beach (Saxophone Version)
  type: MusicAlbum
  date published: 2025-07-28
album: A Walk on The Piano Path
  type: MusicAlbum
  date published: 2025-08-04
album: Slow Deja Vu (Piano Version)
  type: MusicAlbum
  date published: 2025-09-01
  track: Slow Dancing in A Burning Room - Piano Version
    type: MusicRecording
    duration: PT2M10S
    duration ms: 130379
    explicit: false
    by artist: Marc Ventus
    in album: Slow Deja Vu (Piano Version)
      type: MusicAlbum
      date published: 2025-09-01
    isrc code: QZZ792535151
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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    additional property: OTSHash
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ792535151
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 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
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3236a04cf85b3f76816681693204b58baca9f4ee751593fbdd266167052da16. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ792535151 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Slow Dancing in A Burning Room - Piano Version
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      additional property: Tempo (BPM)
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      additional property: Musical Key
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        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.278
      additional property: Energy
        type: PropertyValue
        value: 0.057
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
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        value: 0.972
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.902
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.116
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.936
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: deja vu - Piano Version
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170342
    explicit: false
    by artist: Marc Ventus
    in album: Slow Deja Vu (Piano Version)
      type: MusicAlbum
      date published: 2025-09-01
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    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ792535153
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T06:29:25Z
    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 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
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e8bdc77b3ab7dc1e7fa03dee6480b2b1c60e7fc372439e4e94360c5b9b6ac8. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ792535153 — a six-check JSON result.
      date published: 2026-07-16T06:29:25Z
    audio: deja vu - Piano Version
album: Free Eternity (Piano Version)
album: Golden (Piano Version)

deja vu - Piano Version
type: AudioObject
additional property: Tempo (BPM)
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  value: 173.956
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
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  value: 1
additional property: Time Signature
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  value: 4
additional property: Danceability
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  value: 0.25
additional property: Energy
  type: PropertyValue
  value: 0.221
additional property: Speechiness
  type: PropertyValue
  value: 0.055
additional property: Acousticness
  type: PropertyValue
  value: 0.97
additional property: Instrumentalness
  type: PropertyValue
  value: 0.95
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.1
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.127
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Free Eternity (Piano Version)
type: MusicAlbum
date published: 2025-09-22

Golden (Piano Version)
type: MusicAlbum
date published: 2025-10-09