Eric van Sauers
type: MusicGroup
genre: comedy
popularity: 19
followers: 1133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x32aa0be5816f4a7cfd30b6521d69b48a7bacef5c4dc6c22c003e0e241968d6ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7cfc4a6-b568-45de-b0a2-1e459349ecda.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7cfc4a6-b568-45de-b0a2-1e459349ecda.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f7cfc4a6-b568-45de-b0a2-1e459349ecda
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x32aa0be5816f4a7cfd30b6521d69b48a7bacef5c4dc6c22c003e0e241968d6ca","name":"Eric van Sauers","registered_at":"2026-06-15T06:37:30Z","symbol":"NIM0712920","token_address":"0x08fd7fa58baf20dae0f5a4c2bd97e906e898a204","type":"artist","uuid":"f7cfc4a6-b568-45de-b0a2-1e459349ecda"}
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 0x32aa0be5816f4a7cfd30b6521d69b48a7bacef5c4dc6c22c003e0e241968d6ca. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7cfc4a6-b568-45de-b0a2-1e459349ecda.json and https://artists.proofprofile.net/proofs/artist/f7cfc4a6-b568-45de-b0a2-1e459349ecda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:31:52Z
  text: {"copyright_id":"0x32aa0be5816f4a7cfd30b6521d69b48a7bacef5c4dc6c22c003e0e241968d6ca","name":"Eric van Sauers","registered_at":"2026-06-15T06:37:30Z","symbol":"NIM0712920","token_address":"0x08fd7fa58baf20dae0f5a4c2bd97e906e898a204","type":"artist","uuid":"f7cfc4a6-b568-45de-b0a2-1e459349ecda"}
album: Liegt
  type: MusicAlbum
  date published: 2005
album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
  track: Van Sauers Staat Open Voor Andere Culturen
    type: MusicRecording
    duration: PT9M33S
    duration ms: 573568
    explicit: false
    by artist: Eric van Sauers
    in album: Liegt
      type: MusicAlbum
      date published: 2005-01-01
    genre: comedy
    isrc code: NLD321301008
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:50:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf3dd768e065fab794c2617bb5389e687d38cfee33ed6f4ae275b564210737506
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958802
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958802
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301008
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T01:04:02Z
    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 0xf3dd768e065fab794c2617bb5389e687d38cfee33ed6f4ae275b564210737506. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301008.
      date published: 2026-07-20T01:04:02Z
    audio: Van Sauers Staat Open Voor Andere Culturen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.481
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.58
      additional property: Energy
        type: PropertyValue
        value: 0.447
      additional property: Speechiness
        type: PropertyValue
        value: 0.901
      additional property: Acousticness
        type: PropertyValue
        value: 0.501
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.643
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.363
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.041
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Van Sauers En Z'n Schaduw
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120031
    explicit: false
    by artist: Eric van Sauers
    in album: Liegt
      type: MusicAlbum
      date published: 2005-01-01
    genre: comedy
    isrc code: NLD321301010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:24:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe85abe1a60afc307531514449a8bad68d1a4d8d4d9e6b752741fb84ef37295bf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958234
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958234
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    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 0xe85abe1a60afc307531514449a8bad68d1a4d8d4d9e6b752741fb84ef37295bf. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLD321301010.
      date published: 2026-07-16T03:46:09Z
    audio: Van Sauers En Z'n Schaduw
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.754
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.522
      additional property: Energy
        type: PropertyValue
        value: 0.544
      additional property: Speechiness
        type: PropertyValue
        value: 0.828
      additional property: Acousticness
        type: PropertyValue
        value: 0.524
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.69
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Van Sauers Zoekt De Grens Op
  track: Wij Nederlanders
  track: Op De Hollandse Mannier
  track: Van Sauers in Belgie
  track: Oorlog!
  track: We Zijn Een Volk
  track: Van Sauers Geeft Nog 1 Keer Warmte
album: Smulpapen

Valence (Positivity)
type: PropertyValue
value: 0.203

Loudness (dB)
type: PropertyValue
value: -20.091

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Van Sauers Zoekt De Grens Op
type: MusicRecording
duration: PT5M14S
duration ms: 314911
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T20:52:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x092d85b81e3bfb6d6bf4a6c62553f2e6336038ea78185d793c044ec1488a7d0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958931
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958931
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T21:15:01Z
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 0x092d85b81e3bfb6d6bf4a6c62553f2e6336038ea78185d793c044ec1488a7d0d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLD321301011.
  date published: 2026-07-20T21:15:01Z
audio: Van Sauers Zoekt De Grens Op
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.856
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.598
  additional property: Energy
    type: PropertyValue
    value: 0.62
  additional property: Speechiness
    type: PropertyValue
    value: 0.732
  additional property: Acousticness
    type: PropertyValue
    value: 0.68
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.615
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.399
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.501
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Wij Nederlanders
type: MusicRecording
duration: PT6M49S
duration ms: 409920
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T19:17:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfdc1d3b50c78bfcd8c54ebb7e000130b59789e05fc77d09d4a36d11289848a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958774
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958774
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T22:18:38Z
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 0xfdc1d3b50c78bfcd8c54ebb7e000130b59789e05fc77d09d4a36d11289848a94. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:18:38Z), 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/NLD321301012.
  date published: 2026-07-19T22:18:38Z
audio: Wij Nederlanders
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 78.64
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.531
  additional property: Energy
    type: PropertyValue
    value: 0.529
  additional property: Speechiness
    type: PropertyValue
    value: 0.869
  additional property: Acousticness
    type: PropertyValue
    value: 0.691
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.187
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.108
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Op De Hollandse Mannier
type: MusicRecording
duration: PT5M20S
duration ms: 320128
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T06:13:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd27ccf3c99cdaaa5e3b3f833a8ba5103e56f745a1d2ca1225180c1625dd39542
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958838
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958838
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T07:01:21Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27ccf3c99cdaaa5e3b3f833a8ba5103e56f745a1d2ca1225180c1625dd39542. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301013.
  date published: 2026-07-20T07:01:21Z
audio: Op De Hollandse Mannier
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 80.161
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.595
  additional property: Energy
    type: PropertyValue
    value: 0.586
  additional property: Speechiness
    type: PropertyValue
    value: 0.831
  additional property: Acousticness
    type: PropertyValue
    value: 0.661
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.655
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.745
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Van Sauers in Belgie
type: MusicRecording
duration: PT5M19S
duration ms: 319711
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T01:27:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6de4cfd28944a52fab9ec283287e7c1615b93f32e4a07a75cf0357f14f8e454a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956474
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956474
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T08:56:35Z
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 0x6de4cfd28944a52fab9ec283287e7c1615b93f32e4a07a75cf0357f14f8e454a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLD321301014.
  date published: 2026-07-03T08:56:35Z
audio: Van Sauers in Belgie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.682
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.648
  additional property: Energy
    type: PropertyValue
    value: 0.564
  additional property: Speechiness
    type: PropertyValue
    value: 0.71
  additional property: Acousticness
    type: PropertyValue
    value: 0.665
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.485
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.022
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Oorlog!
type: MusicRecording
duration: PT4M0S
duration ms: 240000
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T21:57:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x771dce641f6bbd9d3979cc1c0a1287731d69beb5b08c23b28bc375b3f6607e98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957763
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957763
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T22:01:25Z
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 0x771dce641f6bbd9d3979cc1c0a1287731d69beb5b08c23b28bc375b3f6607e98. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/NLD321301015.
  date published: 2026-07-12T22:01:25Z
audio: Oorlog!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.109
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.614
  additional property: Energy
    type: PropertyValue
    value: 0.77
  additional property: Speechiness
    type: PropertyValue
    value: 0.87
  additional property: Acousticness
    type: PropertyValue
    value: 0.676
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.625
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.538
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.982
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

We Zijn Een Volk
type: MusicRecording
duration: PT5M20S
duration ms: 320128
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T00:14:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3997fb6ffac3d3c02183e8aed7fab8665e297e781ac17bd68ff834d152d3886
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958340
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958340
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T03:17:20Z
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 0xa3997fb6ffac3d3c02183e8aed7fab8665e297e781ac17bd68ff834d152d3886. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:17:20Z), 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/NLD321301016.
  date published: 2026-07-17T03:17:20Z
audio: We Zijn Een Volk
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.912
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.552
  additional property: Speechiness
    type: PropertyValue
    value: 0.766
  additional property: Acousticness
    type: PropertyValue
    value: 0.59
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.072
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.299
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.481
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Van Sauers Geeft Nog 1 Keer Warmte
type: MusicRecording
duration: PT1M34S
duration ms: 94496
explicit: false
by artist: Eric van Sauers
in album: Liegt
  type: MusicAlbum
  date published: 2005-01-01
genre: comedy
isrc code: NLD321301017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T10:27:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7df17e63112771c2ba4a33a1583280cc3c45ff8332f82b08e2b7e7a43240bee9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958286
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958286
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T12:43:37Z
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 0x7df17e63112771c2ba4a33a1583280cc3c45ff8332f82b08e2b7e7a43240bee9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLD321301017.
  date published: 2026-07-16T12:43:37Z
audio: Van Sauers Geeft Nog 1 Keer Warmte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 176.557
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.796
  additional property: Speechiness
    type: PropertyValue
    value: 0.592
  additional property: Acousticness
    type: PropertyValue
    value: 0.685
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.659
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.53
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Smulpapen
type: MusicAlbum
date published: 2007

Smulpapen
type: MusicAlbum
date published: 2007-01-01
track: Over Onze Aarde En Onze Angst
  type: MusicRecording
  duration: PT9M56S
  duration ms: 596031
  explicit: false
  by artist: Eric van Sauers
  in album: Smulpapen
    type: MusicAlbum
    date published: 2007-01-01
  genre: comedy
  isrc code: NLD321301018
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T06:10:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x11cfd8781417f5abfa84cbc2bac9fe8ac75a1d713d0de80d91f7e36b521522c3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958977
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958977
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301018
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T09:08:30Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cfd8781417f5abfa84cbc2bac9fe8ac75a1d713d0de80d91f7e36b521522c3. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301018.
    date published: 2026-07-21T09:08:30Z
  audio: Over Onze Aarde En Onze Angst
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.25
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.704
    additional property: Energy
      type: PropertyValue
      value: 0.367
    additional property: Speechiness
      type: PropertyValue
      value: 0.91
    additional property: Acousticness
      type: PropertyValue
      value: 0.877
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.538
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.514
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.995
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De Gemiddelde Mense
  type: MusicRecording
  duration: PT6M30S
  duration ms: 390240
  explicit: false
  by artist: Eric van Sauers
  in album: Smulpapen
    type: MusicAlbum
    date published: 2007-01-01
  genre: comedy
  isrc code: NLD321301019
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T13:21:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf94f02affb5a437e373c4a3bbc62f52f4daac64f04382f10af9f7d4b64fb5ecb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958430
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958430
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301019
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T15:33:28Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f02affb5a437e373c4a3bbc62f52f4daac64f04382f10af9f7d4b64fb5ecb. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301019.
    date published: 2026-07-17T15:33:28Z
  audio: De Gemiddelde Mense
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.912
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.709
    additional property: Energy
      type: PropertyValue
      value: 0.351
    additional property: Speechiness
      type: PropertyValue
      value: 0.828
    additional property: Acousticness
      type: PropertyValue
      value: 0.891
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.648
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.357
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.731
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: We Zijn Niet Alleen
  type: MusicRecording
  duration: PT5M51S
  duration ms: 351871
  explicit: false
  by artist: Eric van Sauers
  in album: Smulpapen
    type: MusicAlbum
    date published: 2007-01-01
  genre: comedy
  isrc code: NLD321301020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:57:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2f4ff78e8470c9179985f6ef68f62da79e4a88fc7b2ecc00c8c0da994cafb6a6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: We Zijn Niet Alleen
track: Van Sauers Houdt Van Grote Auto's
track: Decadent
track: Brunei
track: De Eeuwigheid
track: De Mierenkoningin
track: De Brug
track: Met De Borst Vooruit

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301020

OTSTimestamp
type: PropertyValue
value: 2026-07-04T11:19:20Z

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 0x2f4ff78e8470c9179985f6ef68f62da79e4a88fc7b2ecc00c8c0da994cafb6a6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLD321301020.
date published: 2026-07-04T11:19:20Z

We Zijn Niet Alleen
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 73.06
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.615
additional property: Energy
  type: PropertyValue
  value: 0.335
additional property: Speechiness
  type: PropertyValue
  value: 0.93
additional property: Acousticness
  type: PropertyValue
  value: 0.903
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.366
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.478
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.5
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Van Sauers Houdt Van Grote Auto's
type: MusicRecording
duration: PT6M12S
duration ms: 372960
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301021
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T15:53:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f43f3e5541c822bb804e4238438e48b3d0695764aed1ad5b62b58606a98920d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958601
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958601
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301021
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T19:27:02Z
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 0x5f43f3e5541c822bb804e4238438e48b3d0695764aed1ad5b62b58606a98920d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301021.
  date published: 2026-07-18T19:27:02Z
audio: Van Sauers Houdt Van Grote Auto's
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 78.733
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.617
  additional property: Energy
    type: PropertyValue
    value: 0.525
  additional property: Speechiness
    type: PropertyValue
    value: 0.903
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.429
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.585
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.785
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Decadent
type: MusicRecording
duration: PT4M28S
duration ms: 268768
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301023
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T21:11:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe56e3e48af54fe435942faaf283e2fad6e8ee6f7458e698fc17810382c22f07b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956738
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956738
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301023
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T04:47:21Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56e3e48af54fe435942faaf283e2fad6e8ee6f7458e698fc17810382c22f07b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301023.
  date published: 2026-07-05T04:47:21Z
audio: Decadent
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.903
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.641
  additional property: Energy
    type: PropertyValue
    value: 0.393
  additional property: Speechiness
    type: PropertyValue
    value: 0.793
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.503
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.605
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.679
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brunei
type: MusicRecording
duration: PT5M50S
duration ms: 350431
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T02:43:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1de8d48165d9c55746edb1e73ee3b86a0eddc604e6c81f956f675ad4634b73d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958955
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958955
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T03:03:40Z
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 0x1de8d48165d9c55746edb1e73ee3b86a0eddc604e6c81f956f675ad4634b73d2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NLD321301024.
  date published: 2026-07-21T03:03:40Z
audio: Brunei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.83
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.673
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.926
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.333
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.504
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.676
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

De Eeuwigheid
type: MusicRecording
duration: PT5M6S
duration ms: 306208
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T12:14:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50addd566ba61517cefbdc555922977c19099a6b732d8e124ed23656ad44d297
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959137
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959137
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301025
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T15:10:48Z
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 0x50addd566ba61517cefbdc555922977c19099a6b732d8e124ed23656ad44d297. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:10:48Z), 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/NLD321301025.
  date published: 2026-07-22T15:10:48Z
audio: De Eeuwigheid
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 81.563
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.577
  additional property: Energy
    type: PropertyValue
    value: 0.333
  additional property: Speechiness
    type: PropertyValue
    value: 0.871
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.442
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.617
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.404
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Mierenkoningin
type: MusicRecording
duration: PT5M21S
duration ms: 321120
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301027
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T17:42:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa21140f0ea5fbf39469a9ac82f25959c00d3dfe88956a6038d2a486817c05c73
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958761
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958761
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301027
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:45:31Z
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 0xa21140f0ea5fbf39469a9ac82f25959c00d3dfe88956a6038d2a486817c05c73. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:31Z), 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/NLD321301027.
  date published: 2026-07-19T20:45:31Z
audio: De Mierenkoningin
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.876
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.684
  additional property: Energy
    type: PropertyValue
    value: 0.352
  additional property: Speechiness
    type: PropertyValue
    value: 0.909
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.497
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.881
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

De Brug
type: MusicRecording
duration: PT3M44S
duration ms: 224128
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301029
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T11:15:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x481ededf334ce862536d97e61abfb8a163d5012f50f9b5a4d64b9ff13edbb15c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301029
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481ededf334ce862536d97e61abfb8a163d5012f50f9b5a4d64b9ff13edbb15c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301029.
  date published: 2026-07-05T01:12:41Z
audio: De Brug
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 80.163
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.588
  additional property: Energy
    type: PropertyValue
    value: 0.276
  additional property: Speechiness
    type: PropertyValue
    value: 0.889
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.392
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.391
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.046
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Met De Borst Vooruit
type: MusicRecording
duration: PT3M44S
duration ms: 224416
explicit: false
by artist: Eric van Sauers
in album: Smulpapen
  type: MusicAlbum
  date published: 2007-01-01
genre: comedy
isrc code: NLD321301031
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T06:44:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x311df7af1f6c73a3284aa855e9da42eca6955dd983efc82d955fbb8839b05bab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958115
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958115
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD321301031
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T09:48:14Z
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 0x311df7af1f6c73a3284aa855e9da42eca6955dd983efc82d955fbb8839b05bab. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:48:14Z), 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/NLD321301031.
  date published: 2026-07-15T09:48:14Z
audio: Met De Borst Vooruit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.525
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.631
  additional property: Energy
    type: PropertyValue
    value: 0.397
  additional property: Speechiness
    type: PropertyValue
    value: 0.817
  additional property: Acousticness
    type: PropertyValue
    value: 0.924
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.941
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.373
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.544
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor