MDA
type: MusicGroup
genre: happy hardcore
genre: hard house
description: MDA, mda or variants may refer to: Businesses and organizations Political parties Meghalaya Democratic Alliance (2003–2008), in India Meghalaya Democratic Alliance (2018–present), in India Movemen
popularity: 3
followers: 328
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/e1c65282-022f-4976-961f-6bebb209af7d.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/e1c65282-022f-4976-961f-6bebb209af7d.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
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 0x507eea2d53d987d3f5fa187d1437a60a9160e670b88e7048648fdc88d6d9aece. 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/e1c65282-022f-4976-961f-6bebb209af7d.json and https://artists.proofprofile.net/proofs/artist/e1c65282-022f-4976-961f-6bebb209af7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
album: MDA & Spherical EP
  type: MusicAlbum
  date published: 2009-11-01
album: Full Tilt
  type: MusicAlbum
  date published: 2013-08-05
album: One More Night
  type: MusicAlbum
  date published: 2015-03-13
album: Looking out the Window
  type: MusicAlbum
  date published: 2015-12-11
album: Escolhas
  type: MusicAlbum
  date published: 2016-09-16
album: Até Dói
  type: MusicAlbum
  date published: 2019-02-08
album: Back Tonight
  type: MusicAlbum
  date published: 2019-08-09
album: Back Tonight
  type: MusicAlbum
  date published: 2019-08-09
album: Aquela Goma
  type: MusicAlbum
  date published: 2020-02-07
album: 14g de MDA
  type: MusicAlbum
  date published: 2020-02-28
album: 14g de MDA
  type: MusicAlbum
  date published: 2020-02-28
track: Illusion - MDA Hardcore Mix
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171760
  explicit: false
  by artist: MDA
  by artist: Spherical
  by artist: DJ GRH
  by artist: Donna Marie
  in album: Hardcore Heaven 4
    type: MusicAlbum
    date published: 2011-10-11
  isrc code: GBVVQ1027594
  additional property: CopyrightID
  additional property: CopyrightStatus
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    value: registered
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/956894
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBVVQ1027594
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:53:57Z
  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 0xd82ef859ea168700f46e9638db528ecde5d4cee0c25e6bd41218f1c42e822e41. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBVVQ1027594.
    date published: 2026-07-06T07:53:57Z
  audio: Illusion - MDA Hardcore Mix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 171.508
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.307
    additional property: Energy
      type: PropertyValue
      value: 0.977
    additional property: Speechiness
      type: PropertyValue
      value: 0.127
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.486
    additional property: Liveness
      type: PropertyValue
      value: 0.342
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.177
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.969
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor