Mariana Preda
type: MusicGroup
description: Mariana Preda (born 23 January 1994) is a Romanian pan flute musician, actress and film director. She came into prominence after starring in the multi awarded short film Doina. As a musician, she is k
popularity: 2
followers: 101
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f5f697cc-baa3-4e2a-b39b-74c0a2de9f85
additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e4d0cf700af7a9706e522a616c82a061b0a539db41293ea2c0c4a8cc5dd8b4. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5f697cc-baa3-4e2a-b39b-74c0a2de9f85.json and https://artists.proofprofile.net/proofs/artist/f5f697cc-baa3-4e2a-b39b-74c0a2de9f85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
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album: Luna
  type: MusicAlbum
  date published: 2012-03-10
album: Luna
  type: MusicAlbum
  date published: 2012-03-10
album: Sunrise
  type: MusicAlbum
  date published: 2013-05-22
album: Sunrise
  type: MusicAlbum
  date published: 2014-06-13
album: Tuyo (From "Narcos") [Panflute Cover]
  type: MusicAlbum
  date published: 2015
album: Dungeons
  type: MusicAlbum
  date published: 2017-04-30
album: The Untold Story
  type: MusicAlbum
  date published: 2017-10-12
album: Uncover Vol. I
  type: MusicAlbum
  date published: 2024-01-11
album: Uncover Vol. II
  type: MusicAlbum
  date published: 2024-01-22
album: Uncover Vol. I (Panflute Version)
  type: MusicAlbum
  date published: 2025-07-27
album: Love in Portofino (Panflute Version)
  type: MusicAlbum
  date published: 2025-08-14
album: You Are The Reason (Panflute Version)
  type: MusicAlbum
  date published: 2025-08-16
track: Savannah
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  duration ms: 165500
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  by artist: Dread Pitt
  by artist: Mariana Preda
  in album: World Sounds 2
    type: MusicAlbum
    date published: 2023-03-02
  genre: traprun
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    type: PropertyValue
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  additional property: OTSTimestamp
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    value: 2026-08-01T03:41:24Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9a830d5ccc5a59cd3c2f006f0e8fae63ac998729a18edf7b238382ccb7b1e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/NLZ2D2100020.
    date published: 2026-08-01T03:41:24Z
  audio: Savannah
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 131.637
    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
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.708
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.534
    additional property: Key Name
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      value: F
    additional property: Mode Name
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      value: Minor
track: Levante
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184142
  explicit: false
  by artist: Dread Pitt
  by artist: Mariana Preda
  in album: World Sounds
    type: MusicAlbum
    date published: 2019-11-25
  genre: traprun
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  additional property: OTSVerificationAPI
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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 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 0x5c099e3232e15ca57969079ca82c3b0fbe282ed47b80016be2bb92089ca6eeb5. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/NLZ2D1900029.
    date published: 2026-08-01T00:15:43Z
  audio: Levante

Levante
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
  type: PropertyValue
  value: 5
additional property: Danceability
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  value: 0.82
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
  type: PropertyValue
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additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.366
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.293
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.08
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
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Savannah
type: MusicRecording
duration: PT2M45S
duration ms: 165500
explicit: false
by artist: Dread Pitt
by artist: Mariana Preda
in album: Savannah
  type: MusicAlbum
  date published: 2022-01-13
genre: traprun
isrc code: NLZ2D2100020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLZ2D2100020
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 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 0x2ee9a830d5ccc5a59cd3c2f006f0e8fae63ac998729a18edf7b238382ccb7b1e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLZ2D2100020.
  date published: 2026-07-31T00:26:26Z
audio: Savannah
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.091
  additional property: Acousticness
    type: PropertyValue
    value: 0.167
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.708
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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