The Beets Brothers
type: MusicGroup
popularity: 3
followers: 178
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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 0x18b4d227e13ec8e09049b3cd8cc864c05b929bd3ca3456891f23c207f1329b69. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d5f5e31-d624-4eea-acc0-a93c71dd47fc.json and https://artists.proofprofile.net/proofs/artist/2d5f5e31-d624-4eea-acc0-a93c71dd47fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:08:34Z
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album: Infra-Rae
  type: MusicAlbum
  date published: 2010-09-01
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    type: MusicRecording
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    by artist: Ronnie Cuber
    by artist: The Beets Brothers
    by artist: Eric Ineke
    by artist: Peter Beets
    by artist: Alexander Beets
    by artist: Marius Beets
    in album: Infra-Rae
      type: MusicAlbum
      date published: 2010-09-01
    genre: hard-bop
    isrc code: NLR031300195
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLR031300195
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0xb3652bfbf7c78422b31f8824a806d265c87dfc5bfb5c8482bbbfc6f702707470. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLR031300195.
      date published: 2026-07-08T03:20:19Z
    audio: Infra-Rae
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      additional property: Danceability
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      additional property: Speechiness
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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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  track: Chillin'
    type: MusicRecording
    duration: PT6M33S
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    by artist: Ronnie Cuber
    by artist: The Beets Brothers
    by artist: Eric Ineke
    by artist: Peter Beets
    by artist: Alexander Beets
    by artist: Marius Beets
    in album: Infra-Rae
      type: MusicAlbum
      date published: 2010-09-01
    genre: hard-bop
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      type: PropertyValue
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T22:27:44Z
    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 0x6d90c140d6ea89f707d566fdf784f0a2567070caf360d7b6614991789ac66a1b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLR031300198.
      date published: 2026-07-31T22:27:44Z
    audio: Chillin'
      type: AudioObject
      additional property: Tempo (BPM)
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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: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
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album: Live Recording in Amsterdam
album: Brown Beats
album: School Is Closed Now
album: Beets Brothers Live in Holland
album: 'A World Class Jazz-act' (Jubilee edition 1998)
album: Brotherwise (New Dimensions of the)
album: In The New World
album: Socialized JazzBeats2
album: Powerhouse
album: The Best Of Maxanter Jazz (15th Anniversary Collector Edition)
album: Live in concert

Instrumentalness
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value: 0.856

Liveness
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value: 0.205

Valence (Positivity)
type: PropertyValue
value: 0.783

Loudness (dB)
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value: -17.613

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Live Recording in Amsterdam
type: MusicAlbum
date published: 2015-05-01

Brown Beats
type: MusicAlbum
date published: 2014-01-01
track: Boplicity (Bebop Lives)
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  duration: PT3M36S
  duration ms: 216360
  explicit: false
  by artist: Deborah Brown
  by artist: The Beets Brothers
  in album: Brown Beats
    type: MusicAlbum
    date published: 2014-01-01
  isrc code: NLR031400008
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  additional property: CopyrightStatus
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x8cfb974c1fd6618c242bb8be39702a94a779d4731510cccc8d4ca180887fb031. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLR031400008.
    date published: 2026-07-08T03:20:19Z
  audio: Boplicity (Bebop Lives)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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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: 0.119
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.684
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.777
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
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School Is Closed Now
type: MusicAlbum
date published: 2013-07-25

Beets Brothers Live in Holland
type: MusicAlbum
date published: 2002-12-12

'A World Class Jazz-act' (Jubilee edition 1998)
type: MusicAlbum
date published: 1998

Brotherwise (New Dimensions of the)
type: MusicAlbum
date published: 1995

In The New World
type: MusicAlbum
date published: 1993

Socialized JazzBeats2
type: MusicAlbum
date published: 2009-03-20
track: Revelations - Draaikolk & The Jazzinvaders Remix
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268853
  explicit: false
  by artist: Diesler
  by artist: Laura Vane
  in album: Socialized JazzBeats2
    type: MusicAlbum
    date published: 2009-03-20
  isrc code: NLQ930600146
  additional property: CopyrightID
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    type: PropertyValue
    value: registered
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/960468
  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T21:25:57Z
  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 0xb9ac1bb55e5cc04f1db416013b97bc47a90281f6df9e91f0aefe9b5334f38e85. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLQ930600146.
    date published: 2026-07-31T21:25:57Z
  audio: Revelations - Draaikolk & The Jazzinvaders Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.614
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.721
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    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: Mode Name
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Powerhouse
type: MusicAlbum
date published: 1999

The Best Of Maxanter Jazz (15th Anniversary Collector Edition)
type: MusicAlbum
date published: 2013-12-29

Live in concert
type: MusicAlbum
date published: 2003