Euromasters
type: MusicGroup
genre: gabber
genre: happy hardcore
genre: hardcore
genre: hardcore techno
genre: speedcore
description: Euromasters is a gabber act from the Netherlands. Different producers have contributed to this project, although the performances were always done by Rob Christensen (Masters of Ceremony) and Fabian K
popularity: 23
followers: 5364
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: 2026-06-12T19:24:56Z
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 0x17c42fb334a15bc8c3922e5169c4e0cdd2b3686eccbe69397535355e8bf1e976. 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/7007b0d2-8545-4454-be11-64a80ace2eda.json and https://artists.proofprofile.net/proofs/artist/7007b0d2-8545-4454-be11-64a80ace2eda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Oranje Boven
  type: MusicAlbum
  date published: 1993-01-01
  track: Noiken in de koiken
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185759
    explicit: true
    by artist: Euromasters
    in album: Oranje Boven
      type: MusicAlbum
      date published: 1993-01-01
    genre: gabber
    genre: happy hardcore
    genre: hardcore
    genre: hardcore techno
    genre: speedcore
    isrc code: NLCY31100088
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xaff05c14bf8209f1e3292105acf420410cd56c895d99e6f0441844756e835a3e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLCY31100088.
      date published: 2026-07-05T19:27:56Z
    audio: Noiken in de koiken
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.868
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.644
      additional property: Energy
        type: PropertyValue
        value: 0.937
      additional property: Speechiness
        type: PropertyValue
        value: 0.226
      additional property: Acousticness
        type: PropertyValue
        value: 0.039
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.021
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.731
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.981
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
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        value: Major
album: Everybody Clap Your Hands
  type: MusicAlbum
  date published: 1993-01-01
album: Rotterdam Records 100 - De Riemiksen
  type: MusicAlbum
  date published: 2007-07-01
album: Hardscore
  type: MusicAlbum
  date published: 2011-05-02
album: Free Kick
  type: MusicAlbum
  date published: 2011-05-02
album: Amsterdam... Waar lech dat dan?
  type: MusicAlbum
  date published: 2011-05-09
  track: Rotterdam, ech wel! - Parkzicht Mix
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259738
    explicit: false
    by artist: Euromasters
    in album: Amsterdam... Waar lech dat dan?
      type: MusicAlbum
      date published: 2011-05-09
    genre: gabber
    genre: happy hardcore
    genre: hardcore
    genre: hardcore techno
    genre: speedcore
    isrc code: NLC050200927
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    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:01:46Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d6c65e6fd3260753b5f7149305677e04e34909be64e288a879a35c813a0191. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:46Z), 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/NLC050200927.
      date published: 2026-07-21T09:01:46Z
    audio: Rotterdam, ech wel! - Parkzicht Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.893
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        type: PropertyValue
        value: 9
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      additional property: Speechiness
      additional property: Acousticness
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      additional property: Liveness
      additional property: Valence (Positivity)
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      additional property: Key Name
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album: A'Dam Waar Lech Dat Dan
album: Alles naar de klote
album: Alles Naar De Klote
album: Kapu
album: Home
album: Kalil
album: Bby
album: Zodiac
album: Sod
album: Rivera
track: Alles naar de klote (Mixed) - Neophyte & Evil Activities Remix

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.756

Energy
type: PropertyValue
value: 0.666

Speechiness
type: PropertyValue
value: 0.238

Acousticness
type: PropertyValue
value: 0.007

Instrumentalness
type: PropertyValue
value: 0.881

Liveness
type: PropertyValue
value: 0.155

Valence (Positivity)
type: PropertyValue
value: 0.302

Loudness (dB)
type: PropertyValue
value: -7.199

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

A'Dam Waar Lech Dat Dan
type: MusicAlbum
date published: 2011-05-09

Alles naar de klote
type: MusicAlbum
date published: 2011-08-26

Alles naar de klote
type: MusicAlbum
date published: 2011-08-26

Alles Naar De Klote
type: MusicAlbum
date published: 2011-08-26

Kapu
type: MusicAlbum
date published: 2022-01-27

Home
type: MusicAlbum
date published: 2022-01-31

Kalil
type: MusicAlbum
date published: 2022-01-31

Bby
type: MusicAlbum
date published: 2022-01-31

Zodiac
type: MusicAlbum
date published: 2022-03-05

Sod
type: MusicAlbum
date published: 2022-03-05

Rivera
type: MusicAlbum
date published: 2022-03-05

Alles naar de klote (Mixed) - Neophyte & Evil Activities Remix
type: MusicRecording
duration: PT1M43S
duration ms: 103706
explicit: false
by artist: Euromasters
by artist: Neophyte
by artist: Evil Activities
in album: Evil's Greatest Activities (Mixed)
  type: MusicAlbum
  date published: 2013-02-18
popularity: 13
isrc code: NLS241202477
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-02T03:55:08Z
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 0x929cfd7cb9dda94b5860cf35c7fffd78dcde7a6159c4b000cf4d1d29d10498bc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLS241202477.
  date published: 2026-07-02T03:55:08Z
audio: Alles naar de klote (Mixed) - Neophyte & Evil Activities Remix
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