Stefano Mastronardi
type: MusicGroup
genre: acid jazz
genre: jazz funk
genre: jazz fusion
genre: jazz house
genre: soul jazz
popularity: 14
followers: 1319
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b1769de4d0b84292c10932005a1f14374c834d52c56e51e3c74a2a8d070715. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71897c4a-eb12-4810-9599-ff2b5569bc62.json and https://artists.proofprofile.net/proofs/artist/71897c4a-eb12-4810-9599-ff2b5569bc62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
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album: Skyline
  type: MusicAlbum
  date published: 2013-09-16
album: Cinematic Grooves
  type: MusicAlbum
  date published: 2014-10-08
album: Orchestral Tales
  type: MusicAlbum
  date published: 2015-07-22
album: Chrome Cinnamon - Single
  type: MusicAlbum
  date published: 2015-12-04
album: Horizon
  type: MusicAlbum
  date published: 2016-05-11
album: Cinematic Grooves, Vol. 2
  type: MusicAlbum
  date published: 2017-03-13
album: Chaos and Treasures
  type: MusicAlbum
  date published: 2018-10-29
  track: Abstract Emotion
    type: MusicRecording
    duration: PT2M12S
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    by artist: Stefano Mastronardi
    in album: Chaos and Treasures
      type: MusicAlbum
      date published: 2018-10-29
    genre: acid jazz
    genre: jazz funk
    genre: jazz fusion
    genre: jazz house
    genre: soul jazz
    isrc code: QZES61841154
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xe20122687965e7eb23777bc7bbef0ab15437a5ff5fd6948d4d915654c87fc807. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES61841154.
      date published: 2026-07-05T01:12:41Z
    audio: Abstract Emotion
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 153.008
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
        value: 4
      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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      additional property: Loudness (dB)
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album: Abstract Emotion
  type: MusicAlbum
  date published: 2018-10-29
album: The Next Step
  type: MusicAlbum
  date published: 2019-12-08
album: Stefano Mastronardi, Vol. 3
  type: MusicAlbum
  date published: 2019-12-22
album: Stefano Mastronardi, Vol. 1
  type: MusicAlbum
  date published: 2019-12-22
album: Stefano Mastronardi, Vol. 2
  type: MusicAlbum
  date published: 2019-12-22
album: Thinking of You
  type: MusicAlbum
  date published: 2020-04-09
album: New Adventures in Lo-Fi
  type: MusicAlbum
  date published: 2020-06-17
  track: Thinking of You
    type: MusicRecording
    duration: PT2M25S
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    explicit: false
    by artist: Stefano Mastronardi
    in album: New Adventures in Lo-Fi
      type: MusicAlbum
      date published: 2020-06-17
    genre: acid jazz
    genre: jazz funk
    genre: jazz fusion
    genre: jazz house
    genre: soul jazz
    isrc code: QZDA72025872
    additional property: CopyrightID
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    additional property: OTSVerificationAPI
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    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Thinking of You
album: Analog Dream
album: Reload
album: Upbeat Indie
album: Up to the Moon
album: Data 80
album: World Grooves
album: Cafè Godot
album: Flow
album: Pop Synthwave
album: Feel the Beat
album: Take The Heat
album: Uplifting Travel
album: Smokey Tables
album: Sunday Morning
album: Bar Tropicalia
album: Sweet Morning Light
album: Synth Dimension

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/956551

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72025872

OTSTimestamp
type: PropertyValue
value: 2026-07-03T21:18:05Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349bc1ffeded666aaa45a362e1a9df27ec943e03115205f628b66ace3b407d37. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA72025872.
date published: 2026-07-03T21:18:05Z

Thinking of You
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 82.995
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.661
additional property: Energy
  type: PropertyValue
  value: 0.512
additional property: Speechiness
  type: PropertyValue
  value: 0.156
additional property: Acousticness
  type: PropertyValue
  value: 0.656
additional property: Instrumentalness
  type: PropertyValue
  value: 0.889
additional property: Liveness
  type: PropertyValue
  value: 0.228
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.171
additional property: Loudness (dB)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
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Analog Dream
type: MusicAlbum
date published: 2021-04-18

Reload
type: MusicAlbum
date published: 2021-07-13
track: Welcome to a New World
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  duration: PT2M10S
  duration ms: 130005
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  by artist: Stefano Mastronardi
  in album: Reload
    type: MusicAlbum
    date published: 2021-07-13
  genre: acid jazz
  genre: jazz funk
  genre: jazz fusion
  genre: jazz house
  genre: soul jazz
  isrc code: QZK6M2181245
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  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 0x8586e35c942ed313884202f242cc8c123f87a631bbd456505df707c241b5bcdc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6M2181245.
    date published: 2026-07-06T01:26:17Z
  audio: Welcome to a New World
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.646
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.097
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.069
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Data 80
  type: MusicRecording
  duration: PT2M14S
  duration ms: 134788
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  by artist: Stefano Mastronardi
  in album: Reload
    type: MusicAlbum
    date published: 2021-07-13
  genre: acid jazz
  genre: jazz funk
  genre: jazz fusion
  genre: jazz house
  genre: soul jazz
  isrc code: QZK6M2181250
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2181250
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0xacd1f3a8ef4e762be1a9fcda61feade5dbd937f6015f6404d2b552e43c84a17d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6M2181250.
    date published: 2026-07-05T01:12:41Z
  audio: Data 80
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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: Instrumentalness
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      value: 0.3
    additional property: Liveness
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Upbeat Indie
type: MusicAlbum
date published: 2021-12-02

Up to the Moon
type: MusicAlbum
date published: 2022-05-17

Data 80
type: MusicAlbum
date published: 2022-07-26

World Grooves
type: MusicAlbum
date published: 2022-10-24

Cafè Godot
type: MusicAlbum
date published: 2023-07-30

Flow
type: MusicAlbum
date published: 2024-05-14

Pop Synthwave
type: MusicAlbum
date published: 2024-07-19

Feel the Beat
type: MusicAlbum
date published: 2025-01-10

Take The Heat
type: MusicAlbum
date published: 2025-02-25

Uplifting Travel
type: MusicAlbum
date published: 2025-04-18

Smokey Tables
type: MusicAlbum
date published: 2025-05-23

Sunday Morning
type: MusicAlbum
date published: 2025-06-27

Bar Tropicalia
type: MusicAlbum
date published: 2025-07-17

Sweet Morning Light
type: MusicAlbum
date published: 2025-08-09

Synth Dimension
type: MusicAlbum
date published: 2025-11-13