Marcin Viiviivii
type: MusicGroup
genre: emo rap
popularity: 6
followers: 288
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/53867c49-8b3e-4165-8792-f5e4b2720d39.json
additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ad27afc60f3238a99ed0fea819d658a0bbf050de95b6295e99522836ddda2e. 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/53867c49-8b3e-4165-8792-f5e4b2720d39.json and https://artists.proofprofile.net/proofs/artist/53867c49-8b3e-4165-8792-f5e4b2720d39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Enoch
  type: MusicAlbum
  date published: 2017-04-20
album: Chainsaw
  type: MusicAlbum
  date published: 2018-03-07
album: Propane
  type: MusicAlbum
  date published: 2018-07-25
album: Next Level
  type: MusicAlbum
  date published: 2018-08-08
album: The Exorcists
  type: MusicAlbum
  date published: 2018-11-07
album: Don't Care
  type: MusicAlbum
  date published: 2019-06-17
album: Minotaur
  type: MusicAlbum
  date published: 2019-07-17
album: Gladiator
  type: MusicAlbum
  date published: 2019-09-26
album: Jorge Masvidal
  type: MusicAlbum
  date published: 2019-11-21
album: Storm
  type: MusicAlbum
  date published: 2020-01-02
album: Trash
  type: MusicAlbum
  date published: 2020-01-20
album: Raining Flame
  type: MusicAlbum
  date published: 2020-02-27
album: Wake Up
  type: MusicAlbum
  date published: 2020-04-10
album: Foward Momentum
  type: MusicAlbum
  date published: 2020-05-15
album: Gutter Gang
  type: MusicAlbum
  date published: 2020-06-15
album: Fall Back
  type: MusicAlbum
  date published: 2020-07-15
album: Like Me
  type: MusicAlbum
  date published: 2021-01-01
album: Glass
  type: MusicAlbum
  date published: 2021-03-01
album: Let Em Know
  type: MusicAlbum
  date published: 2021-05-11
album: Titan
  type: MusicAlbum
  date published: 2021-06-28
album: Understand Me
  type: MusicAlbum
  date published: 2021-09-03
album: I can't sing
  type: MusicAlbum
  date published: 2021-10-15
album: Count On Me
  type: MusicAlbum
  date published: 2021-11-21
album: Used to Know
  type: MusicAlbum
  date published: 2022-02-04
album: Make It
  type: MusicAlbum
  date published: 2022-05-07
album: I write sins not tragedies
  type: MusicAlbum
  date published: 2022-07-01
album: 3X7
  type: MusicAlbum
  date published: 2022-08-07
album: CVLT
  type: MusicAlbum
  date published: 2023-03-07
album: Cheap Liquor
  type: MusicAlbum
  date published: 2023-10-01
album: If I Were You, I'd Hate Me Too
  type: MusicAlbum
  date published: 2024-02-07
album: If I were you, I'd hate me too
  type: MusicAlbum
  date published: 2024-02-07
album: Domain Expansion
  type: MusicAlbum
  date published: 2024-12-07
  track: Domain Expansion
    type: MusicRecording
    duration: PT3M17S
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    by artist: Marcin Viiviivii
    in album: Domain Expansion
      type: MusicAlbum
      date published: 2024-12-07
    genre: emo rap
    isrc code: QZZ772409923
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      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x40ac110b0b3c1a522d0439ff848f189ab8012d38d3b581e6e438472a423c9bd8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ772409923.
      date published: 2026-07-04T11:19:20Z
    audio: Domain Expansion
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.114
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
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      additional property: Energy
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        value: 0.674
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Main Character Syndrome
album: Son of Man

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.285

Valence (Positivity)
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value: 0.509

Loudness (dB)
type: PropertyValue
value: -9.041

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor

Main Character Syndrome
type: MusicAlbum
date published: 2025-03-07
track: Our Time
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  duration: PT2M59S
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  by artist: Marcin Viiviivii
  in album: Main Character Syndrome
    type: MusicAlbum
    date published: 2025-03-07
  genre: emo rap
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  additional property: CopyrightStatus
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    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82581552
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:13:26Z
  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 0x5c61c872d176cccfc2715c9c55cb30b627b3e98edab5f0d2615ab86aa5cf9e87. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES82581552.
    date published: 2026-07-18T04:13:26Z
  audio: Our Time
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.06
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.586
    additional property: Energy
      type: PropertyValue
      value: 0.531
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.061
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.202
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.098
    additional property: Key Name
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      value: F
    additional property: Mode Name
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Son of Man
type: MusicAlbum
date published: 2025-08-07