Ben Cramer
type: MusicGroup
genre: nederpop
description: Ben Cramer (born Bernardus Kramer; 17 February 1947) is a Dutch singer who represented the Netherlands in the 1973 Eurovision Song Contest. Music career Early years Cramer was born in Amsterdam.
popularity: 30
followers: 9895
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3a06e6968c22571a668b9f7ac814ab15a01e8ee73749bb68b5046dfe8072c17
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/7e3ff017-6194-4879-972f-654f18c651dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e3ff017-6194-4879-972f-654f18c651dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e3ff017-6194-4879-972f-654f18c651dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe3a06e6968c22571a668b9f7ac814ab15a01e8ee73749bb68b5046dfe8072c17","name":"Ben Cramer","registered_at":"2026-06-12T02:52:57Z","symbol":"NIM0164897","token_address":"0x0632de15f9b8715617cb22c06b73aa8d9ef1514a","type":"artist","uuid":"7e3ff017-6194-4879-972f-654f18c651dd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a06e6968c22571a668b9f7ac814ab15a01e8ee73749bb68b5046dfe8072c17. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e3ff017-6194-4879-972f-654f18c651dd.json and https://artists.proofprofile.net/proofs/artist/7e3ff017-6194-4879-972f-654f18c651dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: Dreams Never Come True / I Can't Let You Go
  type: MusicAlbum
  date published: 1967-09-14
album: M'Lady / Don't Leave Me Solitaire
  type: MusicAlbum
  date published: 1967-09-14
album: Gina / Dans Met Mij
  type: MusicAlbum
  date published: 1967-09-14
album: Zai Zai Zai
  type: MusicAlbum
  date published: 1967-11-23
album: Zai Zai Zai
  type: MusicAlbum
  date published: 1969-05-28
album: Het Wordt Nacht Signorita / Bon giorni mi amor
  type: MusicAlbum
  date published: 1969-09-14
album: Schip van Avontuur / Nu ik Je Vraag
  type: MusicAlbum
  date published: 1969-09-14
album: Mona Lisa / 100.000 Rozen
  type: MusicAlbum
  date published: 1969-09-18
album: De Singles
  type: MusicAlbum
  date published: 1969-10-02
  track: De Oude Muzikant
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178106
    explicit: false
    by artist: Ben Cramer
    in album: De Singles
      type: MusicAlbum
      date published: 1969-10-02
    genre: nederpop
    isrc code: NLE320600005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T20:27:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2b1cc42509f9839fedcf44decd65501dffd1b37598b200cd7e54ab7d65a47392
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320600005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1cc42509f9839fedcf44decd65501dffd1b37598b200cd7e54ab7d65a47392. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320600005.
      date published: 2026-07-02T16:51:38Z
    audio: De Oude Muzikant
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 177.257
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.236
      additional property: Energy
        type: PropertyValue
        value: 0.401
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.751
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.151
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.379
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.416
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Veronica Vrij
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176415
    explicit: false
    by artist: Ben Cramer
    in album: De Singles
      type: MusicAlbum
      date published: 1969-10-02
    genre: nederpop
    isrc code: NLE321700143
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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      value: 2026-07-20T14:17:01+00:00
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x4c019eaa58ef8694165713f593d11b2a59b0a7736a70c30ee58b4eb0e89f9ed4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE321700143
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:57:46Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c019eaa58ef8694165713f593d11b2a59b0a7736a70c30ee58b4eb0e89f9ed4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/NLE321700143.
      date published: 2026-07-20T14:57:46Z
    audio: Veronica Vrij
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 172.466
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Ben
album: My World of Music
album: Agatha
album: Agatha / Het Wordt Nacht Signorita
album: In the Night / Although You're Gone
album: My World of Music / Hey Girl
album: Lady of the Night / So Close
album: Ben Cramer
album: De Clown / Zonder Jou
album: Vrede / 't Beloofde Land
album: Hoort Mij Aan Pessimisten / Die Avond
album: Recital At The Festival "The Golden Orpheus' 72" (Live In Bulgaria)
album: Slavin van de Nacht / Nooit
album: Veronica Vrij / Aan Het Mooie Noordzeestrand (De Oude Muzikant)
album: Kom Met Me Mee / Een Melodie
album: De Oude Muzikant / Kom Sylvia Dans Met Mij
album: Geen Sneeuwvlok / Mijn Droombeeld
album: Der alte Musikant / Komm Sylvia, tanz mit mir
album: Leven / Lente
album: Winter / 't Is de Liefde Die 't Doet
album: Leven
album: Jij Hield Niet Van Mij / Een Goed Idee
album: Zoals Het Vroeger Was / M'n Jeugd
album: Get Out of My Memory California / Till
album: Sorrow / Take the Money and Run
album: My Love Songs
album: Speciaal Voor U
album: Lailola / Angelina
album: Ik Ben Zoals Ik Ben
album: Gelukkig Zijn / Vijf Uur 's Morgens
album: Barbara / Ben Je Eenzaam en Alleen
album: Desiree
album: Een Vriend Als Jij
album: Hoor Me
album: Nee
album: Alles Wordt Anders
album: Alles Wordt Anders / Bij Je Zijn
album: Ik Wil Alles
album: Vergeet 't Maar / Nu Jij Er Niet Meer Bent
album: Amper Negen Jaar
album: Hollandse Sterren
album: Hollands Glorie
album: Achter de Horizon
album: Sven
album: Achter De Horizon
album: Ben Cramer - You Belong to My Heart
album: Zonder Jou
album: Everybody Loves Somebody: Ben Cramer - The Reader's Digest Sessions 2004–07
album: Heerlijk Hollands - Het Allerbeste van Ben Cramer
album: Ik Ben Cramer Ben
album: That's Life
album: Vrijheid ... Blijheid
track: De Clown
track: Geen Sneeuwvlok

De Clown
type: MusicRecording
duration: PT3M40S
duration ms: 220439
explicit: false
by artist: Ben Cramer
in album: De Allermooiste Hollandse Hits, Vol. 1
  type: MusicAlbum
  date published: 2012-05-07
popularity: 3
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceb6c5fef212c3399a2b77aef5f63d620211debc5df0e7a2044c7a7a9631f3b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLE320500073.
  date published: 2026-07-31T05:17:02Z
audio: De Clown
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.859
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.834
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.295
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.46
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.298
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLE320500073
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960348
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320500073
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
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

Geen Sneeuwvlok
type: MusicRecording
duration: PT2M56S
duration ms: 176415
explicit: false
by artist: Ben Cramer
in album: Vader Abraham Kerst Show
  type: MusicAlbum
  date published: 1974-11-14
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb104af37be15852af7ef98ab70cc0d32bf60dd5ae3101c68313630b6474cd9d0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLE320800248.
  date published: 2026-07-31T17:29:52Z
audio: Geen Sneeuwvlok
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.6
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.436
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.573
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.107
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLE320800248
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960441
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320800248
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
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

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.363

Energy
type: PropertyValue
value: 0.648

Speechiness
type: PropertyValue
value: 0.035

Acousticness
type: PropertyValue
value: 0.646

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.116

Valence (Positivity)
type: PropertyValue
value: 0.629

Loudness (dB)
type: PropertyValue
value: -5.066

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Ben
type: MusicAlbum
date published: 1969-10-30

My World of Music
type: MusicAlbum
date published: 1970-03-04

Agatha
type: MusicAlbum
date published: 1970-05-28

Agatha / Het Wordt Nacht Signorita
type: MusicAlbum
date published: 1970-09-14

In the Night / Although You're Gone
type: MusicAlbum
date published: 1970-09-18

My World of Music / Hey Girl
type: MusicAlbum
date published: 1970-09-18

Lady of the Night / So Close
type: MusicAlbum
date published: 1970-09-18

Ben Cramer
type: MusicAlbum
date published: 1971-03-14
track: Vrede
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176738
  explicit: false
  by artist: Ben Cramer
  in album: Ben Cramer
    type: MusicAlbum
    date published: 1971-03-14
  genre: nederpop
  isrc code: NLE320600007
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T20:27:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x721c62d3ecf18c7de0f625def5ed3d9b1d022f55cb30257173c83e9425e15691
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320600007
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721c62d3ecf18c7de0f625def5ed3d9b1d022f55cb30257173c83e9425e15691. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320600007.
    date published: 2026-07-02T16:51:38Z
  audio: Vrede
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.159
    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: 0.439
    additional property: Energy
      type: PropertyValue
      value: 0.432
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.574
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.007
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.568
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.522
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

De Clown / Zonder Jou
type: MusicAlbum
date published: 1971-05-07

Vrede / 't Beloofde Land
type: MusicAlbum
date published: 1971-09-14

Hoort Mij Aan Pessimisten / Die Avond
type: MusicAlbum
date published: 1971-09-14

Recital At The Festival "The Golden Orpheus' 72" (Live In Bulgaria)
type: MusicAlbum
date published: 1972-06-06

Slavin van de Nacht / Nooit
type: MusicAlbum
date published: 1972-09-14

Veronica Vrij / Aan Het Mooie Noordzeestrand (De Oude Muzikant)
type: MusicAlbum
date published: 1972-09-14

Kom Met Me Mee / Een Melodie
type: MusicAlbum
date published: 1972-09-14

De Oude Muzikant / Kom Sylvia Dans Met Mij
type: MusicAlbum
date published: 1972-09-18

Geen Sneeuwvlok / Mijn Droombeeld
type: MusicAlbum
date published: 1972-09-18

Ben Cramer
type: MusicAlbum
date published: 1972-10-23

Der alte Musikant / Komm Sylvia, tanz mit mir
type: MusicAlbum
date published: 1973-09-25

Leven / Lente
type: MusicAlbum
date published: 1974-09-14

Winter / 't Is de Liefde Die 't Doet
type: MusicAlbum
date published: 1974-09-14

Leven
type: MusicAlbum
date published: 1974-10-23

Jij Hield Niet Van Mij / Een Goed Idee
type: MusicAlbum
date published: 1975-09-14

Zoals Het Vroeger Was / M'n Jeugd
type: MusicAlbum
date published: 1976-09-21

Get Out of My Memory California / Till
type: MusicAlbum
date published: 1976-09-22

Sorrow / Take the Money and Run
type: MusicAlbum
date published: 1976-09-22

My Love Songs
type: MusicAlbum
date published: 1976-10-24

Speciaal Voor U
type: MusicAlbum
date published: 1976-10-27

Lailola / Angelina
type: MusicAlbum
date published: 1978-09-14

Ik Ben Zoals Ik Ben
type: MusicAlbum
date published: 1978-11-06

Gelukkig Zijn / Vijf Uur 's Morgens
type: MusicAlbum
date published: 1979-09-14

Barbara / Ben Je Eenzaam en Alleen
type: MusicAlbum
date published: 1979-09-22

Desiree
type: MusicAlbum
date published: 1983-05-01

Een Vriend Als Jij
type: MusicAlbum
date published: 1984-05-01

Hoor Me
type: MusicAlbum
date published: 1987

Nee
type: MusicAlbum
date published: 1987

Alles Wordt Anders
type: MusicAlbum
date published: 1991-02-16

Alles Wordt Anders / Bij Je Zijn
type: MusicAlbum
date published: 1991-02-21

Ik Wil Alles
type: MusicAlbum
date published: 1991-02-21

Vergeet 't Maar / Nu Jij Er Niet Meer Bent
type: MusicAlbum
date published: 1991-03-06

Amper Negen Jaar
type: MusicAlbum
date published: 1997-04-30

Ben Cramer
type: MusicAlbum
date published: 2007-09-01

Hollandse Sterren
type: MusicAlbum
date published: 2008
track: Mona Lisa
  type: MusicRecording
  duration: PT2M39S
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  by artist: Ben Cramer
  in album: Hollandse Sterren
    type: MusicAlbum
    date published: 2008
  genre: nederpop
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    value: https://blockstream.info/api/block-height/958980
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320800226
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T07:04:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-21T07:04:12Z
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    additional property: Mode (Major/Minor)
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Hollands Glorie
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date published: 2008
track: Barbara
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  genre: nederpop
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c6233e5168bb791f437d9e325964fe522105fc78fa25883a6c579774a3dbd. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320800227.
    date published: 2026-07-17T15:33:28Z
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track: Dans met mij
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T08:54:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df23adae806513ebf3068e57813bf3d33f690ae13ba9b47195952d688dced0. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/NLE320800242.
    date published: 2026-07-18T08:54:12Z
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track: Winter
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Winter

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320800239

OTSTimestamp
type: PropertyValue
value: 2026-07-18T23:33:54Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc2cdc00f06bed4e7fc657b6c39bed802092ddf0e30e40d535ac1567b906234. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/NLE320800239.
date published: 2026-07-18T23:33:54Z

Winter
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Danceability
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additional property: Energy
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Mode Name
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Achter de Horizon
type: MusicAlbum
date published: 2008-08-25

Achter de Horizon
type: MusicAlbum
date published: 2008-08-25

Sven
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date published: 2010-03-02

Sven
type: MusicAlbum
date published: 2010-03-03

Achter De Horizon
type: MusicAlbum
date published: 2011-04-15

Ben Cramer - You Belong to My Heart
type: MusicAlbum
date published: 2011-11-01

Zonder Jou
type: MusicAlbum
date published: 2012-01-06

Everybody Loves Somebody: Ben Cramer - The Reader's Digest Sessions 2004–07
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date published: 2012-05-02

Heerlijk Hollands - Het Allerbeste van Ben Cramer
type: MusicAlbum
date published: 2012-10-19

Heerlijk Hollands - Het Allerbeste van Ben Cramer
type: MusicAlbum
date published: 2012-10-19
track: De Clown
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    date published: 2012-10-19
  genre: nederpop
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-21T00:24:07Z
  audio: De Clown
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Ik Ben Cramer Ben
type: MusicAlbum
date published: 2012-12-01

That's Life
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date published: 2013-04-11

Vrijheid ... Blijheid
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date published: 2013-04-19

Vrijheid Blijheid - DUB-MIX
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date published: 2013-06-11

Only Once
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date published: 2014-11-06

Amazing Grace
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date published: 2015-07-17

Amazing Grace
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date published: 2015-07-17

Klein Portret
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date published: 2017-11-12

Zaai Zaai Zaai
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date published: 2019-04-14

Voordat Je Gaat
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date published: 2020-06-19

Voordat Je Gaat
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date published: 2020-06-19

Ik Ben Vrij
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date published: 2021-02-02

Ik Zou Je In Een Doosje Willen Doen
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date published: 2021-02-02

Het Allerbeste Van Ben Cramer
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date published: 2021-04-09

Een Nieuwe Lente
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date published: 2021-05-06

Endless Love Songs
type: MusicAlbum
date published: 2025-07-15

Vrede
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duration: PT2M53S
duration ms: 173222
explicit: false
by artist: Ben Cramer
in album: De Allermooiste Hollandse Hits, Vol. 1
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popularity: 3
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vrede
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De Clown
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duration: PT3M46S
duration ms: 226706
explicit: false
by artist: Ben Cramer
in album: De Mooiste Smartlappen Aller Tijden
  type: MusicAlbum
  date published: 2013-04-29
isrc code: NLS241101180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T14:03:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241101180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241101180.
  date published: 2026-07-08T03:22:41Z
audio: De Clown
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.346
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.833
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.477
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.315
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Oude Muzikant
type: MusicRecording
duration: PT3M29S
duration ms: 209773
explicit: false
by artist: Ben Cramer
in album: De Mooiste Smartlappen Aller Tijden
  type: MusicAlbum
  date published: 2013-04-29
isrc code: NLS241201990
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T07:25:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241201990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS241201990.
  date published: 2026-07-08T08:56:20Z
audio: De Oude Muzikant
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 173.323
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.378
  additional property: Energy
    type: PropertyValue
    value: 0.519
  additional property: Speechiness
    type: PropertyValue
    value: 0.127
  additional property: Acousticness
    type: PropertyValue
    value: 0.616
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.601
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.484
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Clown
type: MusicRecording
duration: PT3M46S
duration ms: 226706
explicit: false
by artist: Ben Cramer
in album: Hollandse Hits Top 100
  type: MusicAlbum
  date published: 2013-04-05
isrc code: NLS241101180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T14:03:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241101180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241101180.
  date published: 2026-06-13T17:25:41Z
audio: De Clown
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.346
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.833
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.477
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.315
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Oude Muzikant
type: MusicRecording
duration: PT3M29S
duration ms: 209773
explicit: false
by artist: Ben Cramer
in album: Hollandse Hits Top 100
  type: MusicAlbum
  date published: 2013-04-05
isrc code: NLS241201990
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T07:25:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS241201990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLS241201990.
  date published: 2026-07-02T05:09:12Z
audio: De Oude Muzikant
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 173.323
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.378
  additional property: Energy
    type: PropertyValue
    value: 0.519
  additional property: Speechiness
    type: PropertyValue
    value: 0.127
  additional property: Acousticness
    type: PropertyValue
    value: 0.616
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.601
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.484
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major