Frank Verkooyen
type: MusicGroup
popularity: 32
followers: 8914
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b7b5a81a0139ec9216f55831f24922508bf91ddb063587030b550d2fc83dd3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b7941d7-cdfb-440f-af20-15807ae08df4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b7941d7-cdfb-440f-af20-15807ae08df4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b7941d7-cdfb-440f-af20-15807ae08df4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b7b5a81a0139ec9216f55831f24922508bf91ddb063587030b550d2fc83dd3a","name":"Frank Verkooyen","registered_at":"2026-06-11T19:21:39Z","symbol":"NIM0098570","token_address":"0x4f6254899b339ebabbf6d34b8441d3a5a04b18b7","type":"artist","uuid":"4b7941d7-cdfb-440f-af20-15807ae08df4"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7b5a81a0139ec9216f55831f24922508bf91ddb063587030b550d2fc83dd3a. 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/4b7941d7-cdfb-440f-af20-15807ae08df4.json and https://artists.proofprofile.net/proofs/artist/4b7941d7-cdfb-440f-af20-15807ae08df4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x0b7b5a81a0139ec9216f55831f24922508bf91ddb063587030b550d2fc83dd3a","name":"Frank Verkooyen","registered_at":"2026-06-11T19:21:39Z","symbol":"NIM0098570","token_address":"0x4f6254899b339ebabbf6d34b8441d3a5a04b18b7","type":"artist","uuid":"4b7941d7-cdfb-440f-af20-15807ae08df4"}
album: Het begin
  type: MusicAlbum
  date published: 1995-04-22
album: Muchachita
  type: MusicAlbum
  date published: 1998-05-26
album: Van harte
  type: MusicAlbum
  date published: 2007-02-02
album: Waar Was Je Nou
  type: MusicAlbum
  date published: 2007-02-19
album: Als Ze Lachte
  type: MusicAlbum
  date published: 2007-05-20
album: Van Harte
  type: MusicAlbum
  date published: 2007-05-20
  track: Wie Wil Er Met Mij Dansen?
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203213
    explicit: false
    by artist: Frank Verkooyen
    in album: Van Harte
      type: MusicAlbum
      date published: 2007-05-20
    isrc code: NLB860700058
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:39:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e691ca89055cad099f4b4ac26c0aec7f2ce89a8d11edf76984754b91aa79cfa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB860700058
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x1e691ca89055cad099f4b4ac26c0aec7f2ce89a8d11edf76984754b91aa79cfa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB860700058 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Wie Wil Er Met Mij Dansen?
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.973
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.765
      additional property: Energy
        type: PropertyValue
        value: 0.873
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.152
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.266
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.941
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Frank Verkooijen Mega Party Mix
  type: MusicAlbum
  date published: 2008-01-11
album: Vrij Met Mij
  type: MusicAlbum
  date published: 2008-05-19
album: Voel De Sirtaki
  type: MusicAlbum
  date published: 2008-09-11
album: Kom wie wil er met me dansen
  type: MusicAlbum
  date published: 2009-01-26
album: Ineens gaat `t leven
  type: MusicAlbum
  date published: 2009-05-18
album: Ineens gaat 't leven
  type: MusicAlbum
  date published: 2009-05-18
album: In De Wolken
  type: MusicAlbum
  date published: 2009-09-14
album: In De Wolken
  type: MusicAlbum
  date published: 2009-09-14
album: In De Wolken
  type: MusicAlbum
  date published: 2009-10-20
  track: Voel De Sirtaki
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188000
    explicit: false
    by artist: Frank Verkooyen
    in album: In De Wolken
      type: MusicAlbum
      date published: 2009-10-20
    isrc code: NLD980900043
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:44:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9d1531ac6cf2d189c6de9dcbf2696b3bdf3eb46f04cd44db7caa318b3f3bcae7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD980900043
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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
    audio: Voel De Sirtaki
album: Dans De Hele Nacht Met Mij
album: Kom In Mijn Armen
album: Ze Zeggen
album: Voorbij
album: Dit Is Mijn Kroeg
album: Ik Droom Nog Een Beetje
album: Niet Vertellen Dat Je Van Me Houdt
album: Jou Nog Om Me Heen
album: Voor Elke Traan
album: Als Ik Jou Weer Zie
album: Het Wordt Vast Een Mooie Zomer
album: Leef Maar!
album: Geluk
album: Vrienden voor het leven
album: Nu De Nachten Nog
album: Niets Meer Te Geven
album: De Waarheid
album: De Waarheid (Party Remix)
album: Blijf Voor Altijd Bij Mij
album: In De Brabander
album: Bekijk `t Maar
album: Bekijk 't Maar
album: Bedankt Pa
album: Ik Dronk En Vergat
album: Het Uur Van De Waarheid
album: Angelina
album: Hopeloos
album: Door Jou Ga Ik Nu Weer Leven
album: Geluk In Alles
album: Altijd Naar Voren
album: Jij bent altijd in mijn hart
album: Zomerlach
album: Laat ons drinken
album: Het Uur van de Waarheid
album: Die Lege Plek
album: Nog Een Keertje
album: Jouw Eerste Liefde
album: Vergeef Me
album: Onze Liefde Is Over
album: Voor Altijd Bij Me
album: Mijn Leven Leeft

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1531ac6cf2d189c6de9dcbf2696b3bdf3eb46f04cd44db7caa318b3f3bcae7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD980900043 — a six-check JSON result.
date published: 2026-07-05T18:48:28Z

Voel De Sirtaki
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 108.013
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.75
additional property: Energy
  type: PropertyValue
  value: 0.808
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.106
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.28
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.851
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.239
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

In De Wolken
type: MusicAlbum
date published: 2009-10-20

Dans De Hele Nacht Met Mij
type: MusicAlbum
date published: 2010-02-05

Dans De Hele Nacht Met Mij
type: MusicAlbum
date published: 2010-02-05

Kom In Mijn Armen
type: MusicAlbum
date published: 2010-10-21

Kom In Mijn Armen
type: MusicAlbum
date published: 2010-10-21

Ze Zeggen
type: MusicAlbum
date published: 2011-04-08

Voorbij
type: MusicAlbum
date published: 2011-07-27

Voorbij
type: MusicAlbum
date published: 2011-07-27

Dit Is Mijn Kroeg
type: MusicAlbum
date published: 2012-01-27

Dit Is Mijn Kroeg
type: MusicAlbum
date published: 2012-01-27

Ik Droom Nog Een Beetje
type: MusicAlbum
date published: 2012-06-22

Ik Droom Nog Een Beetje
type: MusicAlbum
date published: 2012-06-22

Niet Vertellen Dat Je Van Me Houdt
type: MusicAlbum
date published: 2013-02-13

Niet Vertellen Dat Je Van Me Houdt
type: MusicAlbum
date published: 2013-02-13

Jou Nog Om Me Heen
type: MusicAlbum
date published: 2013-10-02

Jou Nog Om Me Heen
type: MusicAlbum
date published: 2013-10-03

Voor Elke Traan
type: MusicAlbum
date published: 2014-04-09

Als Ik Jou Weer Zie
type: MusicAlbum
date published: 2014-11-28

Als Ik Jou Weer Zie
type: MusicAlbum
date published: 2014-11-28

Het Wordt Vast Een Mooie Zomer
type: MusicAlbum
date published: 2015-05-29

Het Wordt Vast Een Mooie Zomer
type: MusicAlbum
date published: 2015-05-29

Leef Maar!
type: MusicAlbum
date published: 2015-10-30

Leef Maar!
type: MusicAlbum
date published: 2015-10-30

Geluk
type: MusicAlbum
date published: 2016-04-15

Geluk
type: MusicAlbum
date published: 2016-04-15

Vrienden voor het leven
type: MusicAlbum
date published: 2016-09-16

Vrienden voor het leven
type: MusicAlbum
date published: 2016-09-16

Nu De Nachten Nog
type: MusicAlbum
date published: 2016-12-02

Nu De Nachten Nog
type: MusicAlbum
date published: 2016-12-02

Niets Meer Te Geven
type: MusicAlbum
date published: 2017-06-16

Niets Meer Te Geven
type: MusicAlbum
date published: 2017-06-16

De Waarheid
type: MusicAlbum
date published: 2017-09-29

De Waarheid
type: MusicAlbum
date published: 2017-09-29

De Waarheid
type: MusicAlbum
date published: 2017-09-29

De Waarheid (Party Remix)
type: MusicAlbum
date published: 2018-01-05

De Waarheid (Party Remix)
type: MusicAlbum
date published: 2018-01-05

Blijf Voor Altijd Bij Mij
type: MusicAlbum
date published: 2018-05-04

Blijf Voor Altijd Bij Mij
type: MusicAlbum
date published: 2018-05-04

In De Brabander
type: MusicAlbum
date published: 2018-09-14

Bekijk `t Maar
type: MusicAlbum
date published: 2018-11-30

Bekijk 't Maar
type: MusicAlbum
date published: 2018-11-30

Bedankt Pa
type: MusicAlbum
date published: 2019-06-14

Bedankt Pa
type: MusicAlbum
date published: 2019-06-14

Ik Dronk En Vergat
type: MusicAlbum
date published: 2019-08-23

Ik Dronk En Vergat
type: MusicAlbum
date published: 2019-08-23

Het Uur Van De Waarheid
type: MusicAlbum
date published: 2019-09-06

Het Uur Van De Waarheid
type: MusicAlbum
date published: 2019-09-06

Angelina
type: MusicAlbum
date published: 2020-02-14
track: Angelina
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168736
  explicit: false
  by artist: Frank Verkooyen
  in album: Angelina
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: NLX092001019
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:41:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xda03984463f6601d94992389b429286ce439bfd0e202913337a509296872afdb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958340
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958340
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092001019
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:53:26Z
  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 0xda03984463f6601d94992389b429286ce439bfd0e202913337a509296872afdb. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092001019 — a six-check JSON result.
    date published: 2026-07-17T00:53:26Z
  audio: Angelina
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.038
    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: 0.655
    additional property: Energy
      type: PropertyValue
      value: 0.944
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.041
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.092
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.952
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.741
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Angelina
type: MusicAlbum
date published: 2020-02-14

Hopeloos
type: MusicAlbum
date published: 2020-04-01

Hopeloos
type: MusicAlbum
date published: 2020-04-01

Door Jou Ga Ik Nu Weer Leven
type: MusicAlbum
date published: 2020-05-22
track: Door Jou Ga Ik Nu Weer Leven
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203281
  explicit: false
  by artist: Frank Verkooyen
  in album: Door Jou Ga Ik Nu Weer Leven
    type: MusicAlbum
    date published: 2020-05-22
  isrc code: NLX092001068
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:54:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1e8e41e1c97ceceba5f813009f6af6cd947b8b0fda7a39dad9820e765e9da1b1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092001068
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x1e8e41e1c97ceceba5f813009f6af6cd947b8b0fda7a39dad9820e765e9da1b1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092001068 — a six-check JSON result.
    date published: 2026-07-03T19:59:51Z
  audio: Door Jou Ga Ik Nu Weer Leven
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.018
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.96
    additional property: Speechiness
      type: PropertyValue
      value: 0.064
    additional property: Acousticness
      type: PropertyValue
      value: 0.138
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.256
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.865
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.668
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Geluk In Alles
type: MusicAlbum
date published: 2020-10-02

Geluk In Alles
type: MusicAlbum
date published: 2020-10-02

Altijd Naar Voren
type: MusicAlbum
date published: 2021-08-04
track: Altijd Naar Voren
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181375
  explicit: false
  by artist: Frank Verkooyen
  in album: Altijd Naar Voren
    type: MusicAlbum
    date published: 2021-08-04
  isrc code: NLX092100089
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T04:40:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfc79de1bc3e445c7ef0ba01b3850f74441142eb29dbfc4deb61fa09bf57cb1ed
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092100089
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0xfc79de1bc3e445c7ef0ba01b3850f74441142eb29dbfc4deb61fa09bf57cb1ed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX092100089 — a six-check JSON result.
    date published: 2026-07-04T10:04:33Z
  audio: Altijd Naar Voren
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.954
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.735
    additional property: Energy
      type: PropertyValue
      value: 0.876
    additional property: Speechiness
      type: PropertyValue
      value: 0.072
    additional property: Acousticness
      type: PropertyValue
      value: 0.069
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.258
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.879
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.226
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Jij bent altijd in mijn hart
type: MusicAlbum
date published: 2021-12-29

Zomerlach
type: MusicAlbum
date published: 2022-06-01

Laat ons drinken
type: MusicAlbum
date published: 2022-10-26
track: Laat ons drinken
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179983
  explicit: false
  by artist: Frank Verkooyen
  in album: Laat ons drinken
    type: MusicAlbum
    date published: 2022-10-26
  isrc code: NLHA72200027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T22:03:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2dcf61d815da3860adc1d1bcfbeb2332191368d96af29eccb84db2a7b3998e8e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200027
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0x2dcf61d815da3860adc1d1bcfbeb2332191368d96af29eccb84db2a7b3998e8e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200027 — a six-check JSON result.
    date published: 2026-07-06T01:25:57Z
  audio: Laat ons drinken
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.001
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.915
    additional property: Speechiness
      type: PropertyValue
      value: 0.18
    additional property: Acousticness
      type: PropertyValue
      value: 0.146
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.33
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.919
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.026
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Het Uur van de Waarheid
type: MusicAlbum
date published: 2023-01-09
track: Blijf Voor Altijd Bij Mij
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191000
  explicit: false
  by artist: Frank Verkooyen
  in album: Het Uur van de Waarheid
    type: MusicAlbum
    date published: 2023-01-09
  isrc code: NLX091802005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T14:14:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x998200baf74caacd409e7a6ee90bea0ee3e84d4a760199a3361d5055f5b9a3ac
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091802005
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x998200baf74caacd409e7a6ee90bea0ee3e84d4a760199a3361d5055f5b9a3ac. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091802005 — a six-check JSON result.
    date published: 2026-07-03T19:59:51Z
  audio: Blijf Voor Altijd Bij Mij
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.953
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.71
    additional property: Energy
      type: PropertyValue
      value: 0.968
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.08
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.177
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.89
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.207
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ik Dronk En Vergat
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198026
  explicit: false
  by artist: Frank Verkooyen
  in album: Het Uur van de Waarheid
    type: MusicAlbum
    date published: 2023-01-09
  isrc code: NLX091904026
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T00:33:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x09ee6fa9d4303c77eae820830d67f6f29ce8adb4d449c0c427521fc1e9b63a53
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091904026
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T01:01:38Z
  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 0x09ee6fa9d4303c77eae820830d67f6f29ce8adb4d449c0c427521fc1e9b63a53. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091904026 — a six-check JSON result.
    date published: 2026-07-03T01:01:38Z
  audio: Ik Dronk En Vergat
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.092
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.69
    additional property: Energy
      type: PropertyValue
      value: 0.956
    additional property: Speechiness
      type: PropertyValue
      value: 0.13
    additional property: Acousticness
      type: PropertyValue
      value: 0.039
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.322
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.894
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.363
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Bekijk `t Maar
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178000
  explicit: false
  by artist: Frank Verkooyen
  in album: Het Uur van de Waarheid
    type: MusicAlbum
    date published: 2023-01-09
  isrc code: NLX091808005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T20:09:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6569b3761dc096c035eef109644a3e63c10e4281206e2242592c3460fd25f16a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957603
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957603
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091808005
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bekijk `t Maar
track: Die Ogen Van Jou
track: De Waarheid - Party Remix

OTSTimestamp
type: PropertyValue
value: 2026-07-11T20:26:17Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569b3761dc096c035eef109644a3e63c10e4281206e2242592c3460fd25f16a. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091808005 — a six-check JSON result.
date published: 2026-07-11T20:26:17Z

Bekijk `t Maar
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 124.94
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.759
additional property: Energy
  type: PropertyValue
  value: 0.925
additional property: Speechiness
  type: PropertyValue
  value: 0.212
additional property: Acousticness
  type: PropertyValue
  value: 0.169
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.473
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.765
additional property: Loudness (dB)
  type: PropertyValue
  value: -3.916
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Die Ogen Van Jou
type: MusicRecording
duration: PT3M7S
duration ms: 187800
explicit: false
by artist: Frank Verkooyen
in album: Het Uur van de Waarheid
  type: MusicAlbum
  date published: 2023-01-09
isrc code: NLX091904008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-14T19:49:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff3a5cd8d5b34562724b41f770577b2c447741bfc315870a34b34a9820792084
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958058
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091904008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-14T20:20:34Z
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 0xff3a5cd8d5b34562724b41f770577b2c447741bfc315870a34b34a9820792084. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091904008 — a six-check JSON result.
  date published: 2026-07-14T20:20:34Z
audio: Die Ogen Van Jou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.046
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.69
  additional property: Energy
    type: PropertyValue
    value: 0.878
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.164
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.336
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.785
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.585
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Waarheid - Party Remix
type: MusicRecording
duration: PT3M8S
duration ms: 188120
explicit: false
by artist: Frank Verkooyen
in album: Het Uur van de Waarheid
  type: MusicAlbum
  date published: 2023-01-09
isrc code: NLX091701053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T14:39:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8273abb05017c5e55420a35126bb6e342217ad924a3f9c0ee6a067d5e43e4576
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091701053
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 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 0x8273abb05017c5e55420a35126bb6e342217ad924a3f9c0ee6a067d5e43e4576. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLX091701053 — a six-check JSON result.
  date published: 2026-07-05T01:12:41Z
audio: De Waarheid - Party Remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.994
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.767
  additional property: Energy
    type: PropertyValue
    value: 0.987
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.062
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.049
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.169
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Lege Plek
type: MusicAlbum
date published: 2023-04-19
track: Die Lege Plek
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205446
  explicit: false
  by artist: Frank Verkooyen
  in album: Die Lege Plek
    type: MusicAlbum
    date published: 2023-04-19
  isrc code: NLHA72200047
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T15:37:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfebeb99e37165dbc231722264d4be76dd12e4e794fcf61261a03a565cd683a89
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200047
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  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 0xfebeb99e37165dbc231722264d4be76dd12e4e794fcf61261a03a565cd683a89. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200047 — a six-check JSON result.
    date published: 2026-07-16T16:14:30Z
  audio: Die Lege Plek
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.999
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.712
    additional property: Energy
      type: PropertyValue
      value: 0.924
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.022
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.215
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.937
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.729
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Nog Een Keertje
type: MusicAlbum
date published: 2023-08-09

Jouw Eerste Liefde
type: MusicAlbum
date published: 2024-02-14
track: Jouw Eerste Liefde
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226232
  explicit: false
  by artist: Frank Verkooyen
  in album: Jouw Eerste Liefde
    type: MusicAlbum
    date published: 2024-02-14
  isrc code: NLHA72200100
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T21:07:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6caa1a15142f33420e3b582c9c02764011be11d445beef9eb33e91175b785c3a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959061
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959061
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200100
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T21:34:21Z
  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 0x6caa1a15142f33420e3b582c9c02764011be11d445beef9eb33e91175b785c3a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200100 — a six-check JSON result.
    date published: 2026-07-21T21:34:21Z
  audio: Jouw Eerste Liefde
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.999
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.54
    additional property: Energy
      type: PropertyValue
      value: 0.645
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.239
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.18
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.402
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.143
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Vergeef Me
type: MusicAlbum
date published: 2024-05-22

Onze Liefde Is Over
type: MusicAlbum
date published: 2024-09-30
track: Onze Liefde Is Over
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198387
  explicit: false
  by artist: Frank Verkooyen
  in album: Onze Liefde Is Over
    type: MusicAlbum
    date published: 2024-09-30
  isrc code: NLHA72200179
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T04:34:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9fbbe6160b58b0bc2fd07ed8eea7b452b2ba861c87541fe884ea6eb7d877bfbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957522
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957522
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200179
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-11T04:46:56Z
  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 0x9fbbe6160b58b0bc2fd07ed8eea7b452b2ba861c87541fe884ea6eb7d877bfbb. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200179 — a six-check JSON result.
    date published: 2026-07-11T04:46:56Z
  audio: Onze Liefde Is Over
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.005
    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: 0.73
    additional property: Energy
      type: PropertyValue
      value: 0.901
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.005
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.068
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.74
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.827
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Voor Altijd Bij Me
type: MusicAlbum
date published: 2025-04-14

Mijn Leven Leeft
type: MusicAlbum
date published: 2025-09-19