Rubberen Robbie
type: MusicGroup
genre: nederpop
description: Rubberen Robbie is a Dutch band (or "comedy act") from Leiden, Netherlands, best known for a parodic medley of Dutch-language songs that was a number-one hit in the Netherlands in 1981. It is the cont
popularity: 20
followers: 4102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff4d096b8aa685f17a411ae212ff1a1e8010194e3870389260362efffa68e6de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77e2f5e9-beec-4cad-8659-b32ffa56f7ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77e2f5e9-beec-4cad-8659-b32ffa56f7ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77e2f5e9-beec-4cad-8659-b32ffa56f7ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff4d096b8aa685f17a411ae212ff1a1e8010194e3870389260362efffa68e6de","name":"Rubberen Robbie","registered_at":"2026-06-14T17:02:13Z","symbol":"NIM0518347","token_address":"0x7df9e111a3f22cbd5c4ec4b58b27889e297325cd","type":"artist","uuid":"77e2f5e9-beec-4cad-8659-b32ffa56f7ea"}
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 0xff4d096b8aa685f17a411ae212ff1a1e8010194e3870389260362efffa68e6de. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77e2f5e9-beec-4cad-8659-b32ffa56f7ea.json and https://artists.proofprofile.net/proofs/artist/77e2f5e9-beec-4cad-8659-b32ffa56f7ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xff4d096b8aa685f17a411ae212ff1a1e8010194e3870389260362efffa68e6de","name":"Rubberen Robbie","registered_at":"2026-06-14T17:02:13Z","symbol":"NIM0518347","token_address":"0x7df9e111a3f22cbd5c4ec4b58b27889e297325cd","type":"artist","uuid":"77e2f5e9-beec-4cad-8659-b32ffa56f7ea"}
album: Rubberen Robbie 4
  type: MusicAlbum
  date published: 2010-06-01
album: Rubberen Robbie 3
  type: MusicAlbum
  date published: 2010-06-01
album: Korte Stukkies
  type: MusicAlbum
  date published: 2010-03-05
album: Rubberen Robbie 2
  type: MusicAlbum
  date published: 2009-12-01
album: Rubberen Robbie
  type: MusicAlbum
  date published: 2009-12-01
  track: De Ambulance
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239440
    explicit: false
    by artist: Rubberen Robbie
    in album: Rubberen Robbie
      type: MusicAlbum
      date published: 2009-12-01
    isrc code: NLC820500100
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T23:43:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x66c21f194c6fbc533f73a445a605fc3be335b8e6e3476fc832a45c9287413c0c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957124
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957124
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC820500100
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:53:27Z
    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 0x66c21f194c6fbc533f73a445a605fc3be335b8e6e3476fc832a45c9287413c0c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC820500100.
      date published: 2026-07-08T03:53:27Z
    audio: De Ambulance
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.346
      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: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.677
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.386
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.418
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.969
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.472
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
  track: 3 Oktober
  track: In De Goot
  track: Zuipen
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171399
    explicit: false
    by artist: Rubberen Robbie
    in album: De Grootste Hits
      type: MusicAlbum
      date published: 2005
    isrc code: NLAX70940897
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T13:16:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x29c30278e70920aed5c3e9b46426ba0212ad56f6d771186e1cf26dd20dad287f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957124
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957124
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940897
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:53:27Z
    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 0x29c30278e70920aed5c3e9b46426ba0212ad56f6d771186e1cf26dd20dad287f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLAX70940897.
      date published: 2026-07-08T03:53:27Z
    audio: Zuipen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.536
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.72
      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
  track: Marie
  track: Meer Nederlandse Sterre (Holland Ole)
  track: De Vuile Zee Ballade (De Zuiderzee Ballade)
  track: Met Een Stuk In Me Reet
  track: Het Slurvenlied
  track: De Nederlandse Sterren (Die Stralen Overal)
album: Het Beste Van Rubberen Robbie Vol 4
album: Het Beste Van Rubberen Robbie Vol. 1
album: Djingles, Geluidseffecten, Maffe Sketches, Enz
album: Het Beste Van Rubberen Robbie Vol. 3
album: Het Beste Van Rubberen Robbie Vol. 2
album: De Vuile Zeeballade
album: Twee Mobiele Ogen Die Keken De Kraker Aan
album: De Allerbeste Hollandse Meezingers
album: Piet Montage Presenteert: Het Was Een Mooie Tijd...Deel 1
album: Piet Montage Presenteert: Het Was Een Mooie Tijd...Deel 2

3 Oktober
type: MusicRecording
duration: PT3M16S
duration ms: 196720
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940894
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T10:29:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0d0630f0d4efccebe65f5fd1822a716842d2efa9eab9f5dc82926638d1cb1ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940894
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d0630f0d4efccebe65f5fd1822a716842d2efa9eab9f5dc82926638d1cb1ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940894.
  date published: 2026-07-02T03:55:08Z
audio: 3 Oktober
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.573
  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: 0.651
  additional property: Energy
    type: PropertyValue
    value: 0.918
  additional property: Speechiness
    type: PropertyValue
    value: 0.126
  additional property: Acousticness
    type: PropertyValue
    value: 0.184
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.96
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.756
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.083
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

In De Goot
type: MusicRecording
duration: PT4M36S
duration ms: 276506
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940896
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T00:58:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5fde5f39cb7ff232992ed9ebab9eab8463482ec95172d5508771c4ab1d61aeb1
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/NLAX70940896
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T23:53:34Z
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
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: 956375
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-16T23:53:34+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fde5f39cb7ff232992ed9ebab9eab8463482ec95172d5508771c4ab1d61aeb1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:53:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940896.
  date published: 2026-07-16T23:53:34Z
audio: In De Goot
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.002
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.844
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.128
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.232
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.724
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.772
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Meer Nederlandse Sterre (Holland Ole)
type: MusicRecording
duration: PT6M37S
duration ms: 397400
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940900
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:21:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbddc41f60e3c07bd4fcdf5e6a07c30146c98bdf4d6c43e566e3f9b6bd0ce3b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957819
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940900
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:53:33Z
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
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: 957819
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-13T07:53:33+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbddc41f60e3c07bd4fcdf5e6a07c30146c98bdf4d6c43e566e3f9b6bd0ce3b5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940900.
  date published: 2026-07-13T07:53:33Z
audio: Meer Nederlandse Sterre (Holland Ole)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.395
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.674
  additional property: Energy
    type: PropertyValue
    value: 0.726
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.064
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.37
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.763
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.126
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Met Een Stuk In Me Reet
type: MusicRecording
duration: PT2M49S
duration ms: 169346
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940904
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T01:00:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6216c18e8d3751ea6a411a32addc561a13aca14d41ffa7b2e9fdded376a7c1b4
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/NLAX70940904
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
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: 956375
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T16:51:38+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6216c18e8d3751ea6a411a32addc561a13aca14d41ffa7b2e9fdded376a7c1b4. 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/NLAX70940904.
  date published: 2026-07-02T16:51:38Z
audio: Met Een Stuk In Me Reet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 176.787
  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: 0.644
  additional property: Energy
    type: PropertyValue
    value: 0.866
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.148
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.2
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.848
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.114
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Nederlandse Sterren (Die Stralen Overal)
type: MusicRecording
duration: PT6M46S
duration ms: 406613
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e300abb77f60b580593755bf884544b502a7b7f6ec807da091133d93211afb. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:15Z), 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/NLAX70941485.
  date published: 2026-07-22T20:49:15Z
audio: De Nederlandse Sterren (Die Stralen Overal)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.41
  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: 0.651
  additional property: Energy
    type: PropertyValue
    value: 0.909
  additional property: Speechiness
    type: PropertyValue
    value: 0.092
  additional property: Acousticness
    type: PropertyValue
    value: 0.089
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.366
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.744
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.631
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLAX70941485
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: 959163
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T20:49:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70941485

De Nederlandse Sterre Die Viere Carnaval
type: MusicRecording
duration: PT6M30S
duration ms: 390666
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288200177
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T23:31:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc258ca1f324542c165ba28d675b243c4c618569caaf68a4ecb35c461f5ffbe13
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/NLC288200177
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
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc258ca1f324542c165ba28d675b243c4c618569caaf68a4ecb35c461f5ffbe13. 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/NLC288200177.
  date published: 2026-07-02T05:09:12Z
audio: De Nederlandse Sterre Die Viere Carnaval
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.733
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.75
  additional property: Energy
    type: PropertyValue
    value: 0.781
  additional property: Speechiness
    type: PropertyValue
    value: 0.184
  additional property: Acousticness
    type: PropertyValue
    value: 0.174
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.503
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.54
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.29
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Ambulance / De Dilligence
type: MusicRecording
duration: PT4M1S
duration ms: 241106
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC287900113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T21:18:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb82dd0daecf60258024093bcd76ec603383a3febe867b286234a5a0ce9264ed1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287900113
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82dd0daecf60258024093bcd76ec603383a3febe867b286234a5a0ce9264ed1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLC287900113.
  date published: 2026-07-02T03:30:09Z
audio: De Ambulance / De Dilligence
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.356
  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: 0.741
  additional property: Energy
    type: PropertyValue
    value: 0.58
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.382
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.409
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.969
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.631
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Vuile Zee Ballade
type: MusicRecording
duration: PT4M11S
duration ms: 251866
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288100284
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T02:09:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf987997447384318b1713f9ddca3d27f202785479b552f63ff40bb812e45ce3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T08:53:39Z
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
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: 956889
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T06:56:49+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf987997447384318b1713f9ddca3d27f202785479b552f63ff40bb812e45ce3c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:53:39Z), 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/NLC288100284.
  date published: 2026-07-21T08:53:39Z
audio: De Vuile Zee Ballade
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.795
  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: 0.641
  additional property: Energy
    type: PropertyValue
    value: 0.417
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.739
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.669
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.697
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.468
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ik Ben Met Katootje
type: MusicRecording
duration: PT5M2S
duration ms: 302466
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288200179
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T15:12:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2da165bfc7d87822d6fae8208ce855fb02dcac053d168b00e799c1b66ae69c90
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200179
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da165bfc7d87822d6fae8208ce855fb02dcac053d168b00e799c1b66ae69c90. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200179.
  date published: 2026-07-02T03:55:08Z
audio: Ik Ben Met Katootje
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.514
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.539
  additional property: Speechiness
    type: PropertyValue
    value: 0.236
  additional property: Acousticness
    type: PropertyValue
    value: 0.618
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.57
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.808
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.037
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Marie
type: MusicRecording
duration: PT3M43S
duration ms: 223466
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288100285
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T21:18:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b89741454261f0217b1026ecff1fd73bceb090791602924e211b387ef770e9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100285
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b89741454261f0217b1026ecff1fd73bceb090791602924e211b387ef770e9b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLC288100285.
  date published: 2026-07-02T03:30:09Z
audio: Marie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.707
  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: 0.691
  additional property: Energy
    type: PropertyValue
    value: 0.624
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.017
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.797
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.925
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.216
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arie Hebbie Weer Gezopen?
type: MusicRecording
duration: PT2M48S
duration ms: 168360
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 3
  type: MusicAlbum
  date published: 1983
isrc code: NLC288100014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T01:00:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7621704658fec6571c70ae1a18c30bc74acbb4c91c032bc0af6af9d2c97fddbf
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/NLC288100014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T23:58:22Z
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
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: 956375
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-16T23:58:22+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7621704658fec6571c70ae1a18c30bc74acbb4c91c032bc0af6af9d2c97fddbf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:22Z), 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/NLC288100014.
  date published: 2026-07-16T23:58:22Z
audio: Arie Hebbie Weer Gezopen?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.958
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.695
  additional property: Energy
    type: PropertyValue
    value: 0.719
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.016
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.176
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.951
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.061
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Saaze Saaze Saaze
type: MusicRecording
duration: PT3M5S
duration ms: 185640
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 3
  type: MusicAlbum
  date published: 1983
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ac85341f5cb981077f25732d939e91ca21ec0348624c4f1f2a9c33b59b37c2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLC288100264.
  date published: 2026-07-22T14:03:35Z
audio: Saaze Saaze Saaze
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.407
  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: 0.753
  additional property: Energy
    type: PropertyValue
    value: 0.841
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.15
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.973
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.445
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLC288100264
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: 959137
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T14:03:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100264

Energy
type: PropertyValue
value: 0.573

Speechiness
type: PropertyValue
value: 0.046

Acousticness
type: PropertyValue
value: 0.308

Instrumentalness
type: PropertyValue
value: 0.178

Liveness
type: PropertyValue
value: 0.304

Valence (Positivity)
type: PropertyValue
value: 0.954

Loudness (dB)
type: PropertyValue
value: -12.057

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Marie
type: MusicRecording
duration: PT3M42S
duration ms: 222773
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940898
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:52:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3508411a9dc1f52f16aac66885610f7090f86fcfe4f2d06637a80e7e61ab96e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940898
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xd3508411a9dc1f52f16aac66885610f7090f86fcfe4f2d06637a80e7e61ab96e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLAX70940898.
  date published: 2026-07-08T03:53:27Z
audio: Marie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.669
  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: 0.561
  additional property: Energy
    type: PropertyValue
    value: 0.938
  additional property: Speechiness
    type: PropertyValue
    value: 0.099
  additional property: Acousticness
    type: PropertyValue
    value: 0.087
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.981
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.763
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.907
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Vuile Zee Ballade (De Zuiderzee Ballade)
type: MusicRecording
duration: PT4M13S
duration ms: 253733
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940167
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:53:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab05ffeda39ef2a88e0ae2b56866b61d7c64485baed89194893d02fd94d8195c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAX70940167
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xab05ffeda39ef2a88e0ae2b56866b61d7c64485baed89194893d02fd94d8195c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLAX70940167.
  date published: 2026-07-08T03:53:27Z
audio: De Vuile Zee Ballade (De Zuiderzee Ballade)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.166
  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: 0.673
  additional property: Energy
    type: PropertyValue
    value: 0.734
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.511
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.741
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.742
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.962
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Het Slurvenlied
type: MusicRecording
duration: PT3M44S
duration ms: 224400
explicit: false
by artist: Rubberen Robbie
in album: De Grootste Hits
  type: MusicAlbum
  date published: 2005
isrc code: NLAX70940906
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:55:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d66a58a3fd9b78295d136dea1d07fa7f8dd82d2c357d00750a36791b58dd5ec
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/NLAX70940906
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 0x6d66a58a3fd9b78295d136dea1d07fa7f8dd82d2c357d00750a36791b58dd5ec. 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/NLAX70940906.
  date published: 2026-07-08T03:22:41Z
audio: Het Slurvenlied
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.145
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.705
  additional property: Energy
    type: PropertyValue
    value: 0.836
  additional property: Speechiness
    type: PropertyValue
    value: 0.116
  additional property: Acousticness
    type: PropertyValue
    value: 0.116
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.615
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.736
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.588
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Het Beste Van Rubberen Robbie Vol 4
type: MusicAlbum
date published: 1993
track: Het Slurvenlied ... Maxie Versie
  type: MusicRecording
  duration: PT8M19S
  duration ms: 499960
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol 4
    type: MusicAlbum
    date published: 1993
  isrc code: NLC289300335
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:26:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0e99dac52f8d3657506f047bfa6203b43078bc3128d1d1450c37648e04522cd1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC289300335
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e99dac52f8d3657506f047bfa6203b43078bc3128d1d1450c37648e04522cd1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC289300335.
    date published: 2026-07-08T03:20:19Z
  audio: Het Slurvenlied ... Maxie Versie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.821
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.574
    additional property: Energy
      type: PropertyValue
      value: 0.462
    additional property: Speechiness
      type: PropertyValue
      value: 0.458
    additional property: Acousticness
      type: PropertyValue
      value: 0.666
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.751
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.605
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ik Ben Met Katootje - Veronica TV Versie
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170533
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol 4
    type: MusicAlbum
    date published: 1993
  isrc code: NLC289300337
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T21:37:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7f3e360beea5457f5a20ecb15a9da247a32244193ec435dd246d8de8a2c01894
  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/NLC289300337
  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 0x7f3e360beea5457f5a20ecb15a9da247a32244193ec435dd246d8de8a2c01894. 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/NLC289300337.
    date published: 2026-07-08T08:56:20Z
  audio: Ik Ben Met Katootje - Veronica TV Versie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 173.802
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.639
    additional property: Energy
      type: PropertyValue
      value: 0.343
    additional property: Speechiness
      type: PropertyValue
      value: 0.193
    additional property: Acousticness
      type: PropertyValue
      value: 0.383
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.965
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.192
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Het Beste Van Rubberen Robbie Vol. 1
type: MusicAlbum
date published: 1991
track: De Nederlandse Sterre Die Viere Carnaval
track: De Ambulance / De Dilligence
track: De Vuile Zee Ballade
track: Ik Ben Met Katootje
track: Oh Wat Is Het Toch Fijn Om Bij De Fanfare Te Zijn
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198133
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 1
    type: MusicAlbum
    date published: 1991
  isrc code: NLC288200180
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T18:11:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x34ed424a8cd521ae299fee9fa70aacdf7e99170d4c097d03694d308bb4c99d07
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958041
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958041
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200180
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T18:13:17Z
  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 0x34ed424a8cd521ae299fee9fa70aacdf7e99170d4c097d03694d308bb4c99d07. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200180.
    date published: 2026-07-14T18:13:17Z
  audio: Oh Wat Is Het Toch Fijn Om Bij De Fanfare Te Zijn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 173.026
    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: 0.226
    additional property: Energy
      type: PropertyValue
      value: 0.589
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.827
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.688
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.151
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nee, Je Moet Op Vakantie Gaan
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254600
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 1
    type: MusicAlbum
    date published: 1991
  isrc code: NLC288200178
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:19:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xabeb175fb044fb03211c61e3e9c7a94efb0167fe6ef3054d352553627606c647
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200178
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  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 0xabeb175fb044fb03211c61e3e9c7a94efb0167fe6ef3054d352553627606c647. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC288200178.
    date published: 2026-07-08T03:53:27Z
  audio: Nee, Je Moet Op Vakantie Gaan
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.37
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.501
    additional property: Energy
      type: PropertyValue
      value: 0.454
    additional property: Speechiness
      type: PropertyValue
      value: 0.337
    additional property: Acousticness
      type: PropertyValue
      value: 0.719
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.418
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.732
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.996
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Drie Oktober
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183066
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 1
    type: MusicAlbum
    date published: 1991
  isrc code: NLC288100283
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:02:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf5139291c3a7ace9802787eda9c3d2c42ada9f0d9ac46ff4856023a486956139
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Drie Oktober
track: Zuipen
track: De Palingvissers
track: De Nederlandse Sterre Die Stralle Overal
track: Het Slurfenlied
track: Marie
track: Nee, Je Moet 't Je Broer Laten Doen
track: Met Een Stuk In Me Reet

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100283

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0xf5139291c3a7ace9802787eda9c3d2c42ada9f0d9ac46ff4856023a486956139. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC288100283.
date published: 2026-07-08T03:53:27Z

Drie Oktober
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 131.654
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: 0.764
additional property: Energy
  type: PropertyValue
  value: 0.716
additional property: Speechiness
  type: PropertyValue
  value: 0.107
additional property: Acousticness
  type: PropertyValue
  value: 0.336
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.447
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.769
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.569
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Zuipen
type: MusicRecording
duration: PT2M27S
duration ms: 147266
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC287800126
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:21:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x844d69b2b3f45543732e4658145890dce09e475d9790c8bdd459d89ddf412bc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287800126
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844d69b2b3f45543732e4658145890dce09e475d9790c8bdd459d89ddf412bc2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287800126.
  date published: 2026-07-08T03:20:19Z
audio: Zuipen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.197
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.733
  additional property: Energy
    type: PropertyValue
    value: 0.555
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.116
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.263
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.953
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.811
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Palingvissers
type: MusicRecording
duration: PT3M26S
duration ms: 206333
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288100282
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:56:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb5d06651da8ea1ab1326f611e2153c5994094c086879d44b8018847434de601
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/NLC288100282
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 0xbb5d06651da8ea1ab1326f611e2153c5994094c086879d44b8018847434de601. 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/NLC288100282.
  date published: 2026-07-08T03:22:41Z
audio: De Palingvissers
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.043
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.309
  additional property: Energy
    type: PropertyValue
    value: 0.521
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.084
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.368
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.369
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Nederlandse Sterre Die Stralle Overal
type: MusicRecording
duration: PT6M46S
duration ms: 406293
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288100002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T08:43:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31bd6383e7c02b00b5a504be6672adc7fa0db172aefb80c6eec024e153dc8be4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x31bd6383e7c02b00b5a504be6672adc7fa0db172aefb80c6eec024e153dc8be4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLC288100002.
  date published: 2026-06-13T13:32:09Z
audio: De Nederlandse Sterre Die Stralle Overal
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.794
  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: 0.805
  additional property: Energy
    type: PropertyValue
    value: 0.735
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.201
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.262
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.778
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.168
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Het Slurfenlied
type: MusicRecording
duration: PT3M48S
duration ms: 228000
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288200181
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T11:01:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeed6c1dde79865450630afd09ca57fae4bf224a1f6c685e7ccd57ec87fe6950b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0xeed6c1dde79865450630afd09ca57fae4bf224a1f6c685e7ccd57ec87fe6950b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLC288200181.
  date published: 2026-07-07T18:39:05Z
audio: Het Slurfenlied
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.98
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.793
  additional property: Energy
    type: PropertyValue
    value: 0.787
  additional property: Speechiness
    type: PropertyValue
    value: 0.125
  additional property: Acousticness
    type: PropertyValue
    value: 0.46
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.14
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.905
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.979
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nee, Je Moet 't Je Broer Laten Doen
type: MusicRecording
duration: PT3M19S
duration ms: 199773
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC288000121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:38:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0ba54b2626bcceb201adf46f646390053945356b36c75856c3884b34931e36a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288000121
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ba54b2626bcceb201adf46f646390053945356b36c75856c3884b34931e36a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288000121.
  date published: 2026-07-08T03:20:19Z
audio: Nee, Je Moet 't Je Broer Laten Doen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.155
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.763
  additional property: Energy
    type: PropertyValue
    value: 0.606
  additional property: Speechiness
    type: PropertyValue
    value: 0.121
  additional property: Acousticness
    type: PropertyValue
    value: 0.407
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.857
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.396
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Met Een Stuk In Me Reet
type: MusicRecording
duration: PT2M41S
duration ms: 161093
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 1
  type: MusicAlbum
  date published: 1991
isrc code: NLC287800127
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:40:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x189397328f2a247ceb953daaf8ba746f6dcfbff0d9176d06b51d6a6e2acb7673
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957043
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287800127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:52:39Z
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 0x189397328f2a247ceb953daaf8ba746f6dcfbff0d9176d06b51d6a6e2acb7673. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLC287800127.
  date published: 2026-07-07T13:52:39Z
audio: Met Een Stuk In Me Reet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.549
  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: 0.811
  additional property: Energy
    type: PropertyValue
    value: 0.872
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.379
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.891
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.751
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Djingles, Geluidseffecten, Maffe Sketches, Enz
type: MusicAlbum
date published: 1991

Het Beste Van Rubberen Robbie Vol. 3
type: MusicAlbum
date published: 1983
track: Hallo Hallo Hallo - (Rapers Delight)
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183933
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 3
    type: MusicAlbum
    date published: 1983
  isrc code: NLC288100265
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:29:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x237e540f276521ed0c3f93eee91eb67884bf9a4c99b781ca7b3cc632a1266b19
  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/NLC288100265
  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 0x237e540f276521ed0c3f93eee91eb67884bf9a4c99b781ca7b3cc632a1266b19. 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/NLC288100265.
    date published: 2026-07-08T03:22:41Z
  audio: Hallo Hallo Hallo - (Rapers Delight)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.909
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.812
    additional property: Energy
      type: PropertyValue
      value: 0.494
    additional property: Speechiness
      type: PropertyValue
      value: 0.394
    additional property: Acousticness
      type: PropertyValue
      value: 0.403
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.055
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.96
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.686
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Koffie Met Een Rondo
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161000
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 3
    type: MusicAlbum
    date published: 1983
  isrc code: NLC287900107
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:20:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfb2fc2ab1ff7bba518e077feeb8460f9f9c23803e29cedff037ebe5a0d2bff3a
  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/NLC287900107
  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 0xfb2fc2ab1ff7bba518e077feeb8460f9f9c23803e29cedff037ebe5a0d2bff3a. 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/NLC287900107.
    date published: 2026-07-08T08:56:20Z
  audio: Koffie Met Een Rondo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.4
    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: 0.693
    additional property: Energy
      type: PropertyValue
      value: 0.669
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.182
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.297
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.527
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Het Voetballied
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231306
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 3
    type: MusicAlbum
    date published: 1983
  isrc code: NLC288200163
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:47:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3c72136c8b06f61b5d2cdedb4ad2d81c7be3e956c807e790055b52ee153e7360
  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/NLC288200163
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Het Voetballied
track: Arie Hebbie Weer Gezopen?
track: Oh Oh Wat Een Gein (Om Bij De PTT Te Zijn)
track: Als Een Kroket In Zijn Kadet
track: Saaze Saaze Saaze

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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 0x3c72136c8b06f61b5d2cdedb4ad2d81c7be3e956c807e790055b52ee153e7360. 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/NLC288200163.
date published: 2026-07-08T03:22:41Z

Het Voetballied
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.411
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: 0.608
additional property: Energy
  type: PropertyValue
  value: 0.499
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.591
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.198
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.665
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.661
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Oh Oh Wat Een Gein (Om Bij De PTT Te Zijn)
type: MusicRecording
duration: PT3M34S
duration ms: 214440
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 3
  type: MusicAlbum
  date published: 1983
isrc code: NLC288100259
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:51:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f616023e2601c7947d9ae04f97867a405057231fc3fd5b0ad0752ccc1d585a0
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/NLC288100259
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 0x6f616023e2601c7947d9ae04f97867a405057231fc3fd5b0ad0752ccc1d585a0. 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/NLC288100259.
  date published: 2026-07-08T03:22:41Z
audio: Oh Oh Wat Een Gein (Om Bij De PTT Te Zijn)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.737
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.755
  additional property: Energy
    type: PropertyValue
    value: 0.73
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.56
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.056
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.906
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.768
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Als Een Kroket In Zijn Kadet
type: MusicRecording
duration: PT3M14S
duration ms: 194266
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 3
  type: MusicAlbum
  date published: 1983
isrc code: NLC288100260
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:31:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28a14218859f9e8d14128b56d9656adbad3765704670f8faeefbc218255cc1dc
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/NLC288100260
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 0x28a14218859f9e8d14128b56d9656adbad3765704670f8faeefbc218255cc1dc. 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/NLC288100260.
  date published: 2026-07-08T03:22:41Z
audio: Als Een Kroket In Zijn Kadet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.695
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.595
  additional property: Energy
    type: PropertyValue
    value: 0.632
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.187
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.793
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.383
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Het Beste Van Rubberen Robbie Vol. 2
type: MusicAlbum
date published: 1983
track: Meneer Tarzan
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168666
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 2
    type: MusicAlbum
    date published: 1983
  isrc code: NLC288200158
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T05:26:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdec9d1bf5d3a788f7e20422cfe0420539248e9567af680a61c33a9c586673a38
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200158
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec9d1bf5d3a788f7e20422cfe0420539248e9567af680a61c33a9c586673a38. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200158.
    date published: 2026-07-08T03:20:19Z
  audio: Meneer Tarzan
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 166.555
    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: 0.529
    additional property: Energy
      type: PropertyValue
      value: 0.446
    additional property: Speechiness
      type: PropertyValue
      value: 0.314
    additional property: Acousticness
      type: PropertyValue
      value: 0.68
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.121
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.903
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.216
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De Nederlandse Sterre Gaan Op De Klassieke Toer
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184000
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 2
    type: MusicAlbum
    date published: 1983
  isrc code: NLC288200159
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:56:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xabd9fca1cc0bb95d9ce9badbd0a17f20364e13282d06d0fd06507bf5dcd30532
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200159
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  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 0xabd9fca1cc0bb95d9ce9badbd0a17f20364e13282d06d0fd06507bf5dcd30532. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC288200159.
    date published: 2026-07-08T03:53:27Z
  audio: De Nederlandse Sterre Gaan Op De Klassieke Toer
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.182
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.513
    additional property: Energy
      type: PropertyValue
      value: 0.436
    additional property: Speechiness
      type: PropertyValue
      value: 0.061
    additional property: Acousticness
      type: PropertyValue
      value: 0.783
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.484
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.481
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Broodje Pindakaas
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191893
  explicit: false
  by artist: Rubberen Robbie
  in album: Het Beste Van Rubberen Robbie Vol. 2
    type: MusicAlbum
    date published: 1983
  isrc code: NLC287900105
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T19:25:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6547cedb18096c649ffd231d0e61323176d192eda9c36baf107aa2fed4a7c420
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287900105
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Broodje Pindakaas
track: De Kater Komt Later
track: Brandend Maagzuur

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0x6547cedb18096c649ffd231d0e61323176d192eda9c36baf107aa2fed4a7c420. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC287900105.
date published: 2026-07-08T03:53:27Z

Broodje Pindakaas
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 120.298
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: 0.641
additional property: Energy
  type: PropertyValue
  value: 0.512
additional property: Speechiness
  type: PropertyValue
  value: 0.06
additional property: Acousticness
  type: PropertyValue
  value: 0.723
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.337
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.635
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.682
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

De Kater Komt Later
type: MusicRecording
duration: PT3M23S
duration ms: 203866
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 2
  type: MusicAlbum
  date published: 1983
isrc code: NLC287800118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:38:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a7656e8a98617f7643de665c00eb1d36717228791f40dc505e522d124b17557
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/NLC287800118
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 0x2a7656e8a98617f7643de665c00eb1d36717228791f40dc505e522d124b17557. 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/NLC287800118.
  date published: 2026-07-08T08:56:20Z
audio: De Kater Komt Later
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.519
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
    value: 0.529
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.364
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.898
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.317
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brandend Maagzuur
type: MusicRecording
duration: PT3M2S
duration ms: 182533
explicit: false
by artist: Rubberen Robbie
in album: Het Beste Van Rubberen Robbie Vol. 2
  type: MusicAlbum
  date published: 1983
isrc code: NLC288100012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:56:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc9b8d8f9778545254fc657c0aa925d744f2c42f18b8b12595b54cfcbcde33ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9b8d8f9778545254fc657c0aa925d744f2c42f18b8b12595b54cfcbcde33ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100012.
  date published: 2026-07-08T03:20:19Z
audio: Brandend Maagzuur
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 189.053
  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: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.57
  additional property: Speechiness
    type: PropertyValue
    value: 0.131
  additional property: Acousticness
    type: PropertyValue
    value: 0.625
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.532
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.908
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.91
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Vuile Zeeballade
type: MusicAlbum
date published: 1981-02-02

Twee Mobiele Ogen Die Keken De Kraker Aan
type: MusicAlbum
date published: 1980-07-14

De Allerbeste Hollandse Meezingers
type: MusicAlbum
date published: 2010-12-16
track: Ik Heb De Hele Nacht Liggen Dromen
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248093
  explicit: false
  by artist: Wolter Kroes
  in album: De Allerbeste Hollandse Meezingers
    type: MusicAlbum
    date published: 2010-12-16
  isrc code: NLC280000061
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T09:23:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf3f6781ba72ef7f5cbbe793236add5cbbcd00722f4d93e7365a648258acea548
  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/NLC280000061
  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 0xf3f6781ba72ef7f5cbbe793236add5cbbcd00722f4d93e7365a648258acea548. 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/NLC280000061.
    date published: 2026-06-13T17:25:41Z
  audio: Ik Heb De Hele Nacht Liggen Dromen
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.172
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.739
    additional property: Energy
      type: PropertyValue
      value: 0.838
    additional property: Speechiness
      type: PropertyValue
      value: 0.053
    additional property: Acousticness
      type: PropertyValue
      value: 0.095
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.075
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.733
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.781
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 'n Vriend - Live Versie..
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292933
  explicit: false
  by artist: Nico Landers
  in album: De Allerbeste Hollandse Meezingers
    type: MusicAlbum
    date published: 2010-12-16
  isrc code: NLC289600121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:18:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x47d0f818ee64bc7ca974b0db06202dab6f42b715db7f50387cfa2970296f4e46
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957075
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957075
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC289600121
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:50:38Z
  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 0x47d0f818ee64bc7ca974b0db06202dab6f42b715db7f50387cfa2970296f4e46. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLC289600121.
    date published: 2026-07-07T18:50:38Z
  audio: 'n Vriend - Live Versie..
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.121
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.265
    additional property: Energy
      type: PropertyValue
      value: 0.551
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.487
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.222
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.514
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.524
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De Nederlandse Sterre Die Stralle Overal
  type: MusicRecording
  duration: PT6M46S
  duration ms: 406293
  explicit: false
  by artist: Rubberen Robbie
  in album: De Allerbeste Hollandse Meezingers
    type: MusicAlbum
    date published: 2010-12-16
  isrc code: NLC288100002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T08:43:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31bd6383e7c02b00b5a504be6672adc7fa0db172aefb80c6eec024e153dc8be4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288100002
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: De Nederlandse Sterre Die Stralle Overal
track: Jij Bent Zo
track: Big City
track: Mooi Volendam
track: Belgie ... (Is Er Leven Op Pluto ...)

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0x31bd6383e7c02b00b5a504be6672adc7fa0db172aefb80c6eec024e153dc8be4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLC288100002.
date published: 2026-07-08T03:53:27Z

De Nederlandse Sterre Die Stralle Overal
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 133.794
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: 0.805
additional property: Energy
  type: PropertyValue
  value: 0.735
additional property: Speechiness
  type: PropertyValue
  value: 0.087
additional property: Acousticness
  type: PropertyValue
  value: 0.201
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.262
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.778
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.168
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Jij Bent Zo
type: MusicRecording
duration: PT3M31S
duration ms: 211453
explicit: false
by artist: Jeroen Van Der Boom
in album: De Allerbeste Hollandse Meezingers
  type: MusicAlbum
  date published: 2010-12-16
isrc code: NLC280700037
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:53:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacb1cdcdb8adaf9257039a5e2b6d466fd3ff1c2da1a592a9b61900b7cf6d9ffa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC280700037
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0xacb1cdcdb8adaf9257039a5e2b6d466fd3ff1c2da1a592a9b61900b7cf6d9ffa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLC280700037.
  date published: 2026-06-13T15:41:10Z
audio: Jij Bent Zo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.741
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.607
  additional property: Energy
    type: PropertyValue
    value: 0.887
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.031
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.277
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.823
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.113
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Big City
type: MusicRecording
duration: PT3M24S
duration ms: 204600
explicit: false
by artist: Tol Hansse
in album: De Allerbeste Hollandse Meezingers
  type: MusicAlbum
  date published: 2010-12-16
isrc code: NLC287800057
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T15:27:28+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0b6d553e4763f1094e1967f482920e1ec45b22a5b97e4bcf6a0c0d26f759548f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287800057
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6d553e4763f1094e1967f482920e1ec45b22a5b97e4bcf6a0c0d26f759548f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287800057.
  date published: 2026-07-02T03:55:08Z
audio: Big City
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.738
  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: 0.639
  additional property: Energy
    type: PropertyValue
    value: 0.611
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.127
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.939
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.854
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mooi Volendam
type: MusicRecording
duration: PT3M57S
duration ms: 237026
explicit: false
by artist: Stampvast
in album: De Allerbeste Hollandse Meezingers
  type: MusicAlbum
  date published: 2010-12-16
isrc code: NLC289300378
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:56:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cacf9444b6aab5515b3bd5725b9732170484439dfeecae72cc6b3b9c6ce4dbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC289300378
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cacf9444b6aab5515b3bd5725b9732170484439dfeecae72cc6b3b9c6ce4dbe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC289300378.
  date published: 2026-07-08T03:20:19Z
audio: Mooi Volendam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.511
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.668
  additional property: Energy
    type: PropertyValue
    value: 0.503
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.26
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.308
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.725
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.261
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Belgie ... (Is Er Leven Op Pluto ...)
type: MusicRecording
duration: PT6M0S
duration ms: 360706
explicit: false
by artist: Het Goede Doel
in album: De Allerbeste Hollandse Meezingers
  type: MusicAlbum
  date published: 2010-12-16
isrc code: NLC288200011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T11:21:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5af7c08db3cb27f6f0692be05209d5b58b233c4c7ec6bfa3ff76332a4050fd6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5af7c08db3cb27f6f0692be05209d5b58b233c4c7ec6bfa3ff76332a4050fd6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC288200011.
  date published: 2026-07-02T03:55:08Z
audio: Belgie ... (Is Er Leven Op Pluto ...)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.83
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.584
  additional property: Energy
    type: PropertyValue
    value: 0.662
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.011
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.658
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.131
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piet Montage Presenteert: Het Was Een Mooie Tijd...Deel 1
type: MusicAlbum
date published: 2010-06-01

Piet Montage Presenteert: Het Was Een Mooie Tijd...Deel 2
type: MusicAlbum
date published: 2010-06-01