Katastroof
type: MusicGroup
popularity: 36
followers: 18558
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2505fdfa6f01cfb25bb2501b722dbf2236674e4c93bc1438a61b2a4a30e723d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2291862b-66ed-4e64-8dfa-a0f7399b3099.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2291862b-66ed-4e64-8dfa-a0f7399b3099.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2291862b-66ed-4e64-8dfa-a0f7399b3099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x2505fdfa6f01cfb25bb2501b722dbf2236674e4c93bc1438a61b2a4a30e723d5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2291862b-66ed-4e64-8dfa-a0f7399b3099.json and https://artists.proofprofile.net/proofs/artist/2291862b-66ed-4e64-8dfa-a0f7399b3099.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Foefelen
  type: MusicAlbum
  date published: 1979-07-29
  track: Paterkesdans
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239493
    explicit: false
    by artist: Katastroof
    in album: Foefelen
      type: MusicAlbum
      date published: 1979-07-29
    isrc code: QZNWW2151278
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:40:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea20580cdbaccf3ae5befd0629b59bca2bdf268137834370e299a14b14c8f197
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151278
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0xea20580cdbaccf3ae5befd0629b59bca2bdf268137834370e299a14b14c8f197. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151278.
      date published: 2026-07-06T01:26:17Z
    audio: Paterkesdans
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.582
      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: 0.773
      additional property: Energy
        type: PropertyValue
        value: 0.361
      additional property: Speechiness
        type: PropertyValue
        value: 0.109
      additional property: Acousticness
        type: PropertyValue
        value: 0.684
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.709
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.877
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.496
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Hoerekotje
    type: MusicRecording
    duration: PT1M51S
    duration ms: 111600
    explicit: true
    by artist: Katastroof
    in album: Foefelen
      type: MusicAlbum
      date published: 1979-07-29
    isrc code: QZNWW2151279
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:37:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb526a0444e9149992b920ce622f2db5e5ed44921cdde8a6658f70a3fb27a54ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151279
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:00:27Z
    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 0xb526a0444e9149992b920ce622f2db5e5ed44921cdde8a6658f70a3fb27a54ee. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZNWW2151279.
      date published: 2026-07-15T12:00:27Z
    audio: Hoerekotje
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.035
      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: 0.696
      additional property: Energy
        type: PropertyValue
        value: 0.396
      additional property: Speechiness
        type: PropertyValue
        value: 0.123
      additional property: Acousticness
        type: PropertyValue
        value: 0.862
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.231
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.629
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.3
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
  track: Den bazepoeper
  track: Mieke
  track: Den bloedrooien band
  track: Niet te versieren
album: Stront aan de knikker II
album: De zuipschuit
album: Den aard van ’t beest
album: Noch vis noch vlees
album: Hete winters
album: Belgeland
album: Den aanhouwer wint
album: Duveltjeskermis
album: Monsterboelekes
album: Ramp-zalig
album: Zwijnen zonder parels
album: Ambi-jaans
album: Nachtbraken
album: Leven in de brouwerij
album: Zuipe (jump mixes)
album: Met de wijven niks as last (jump mixes)
album: Tdeuts lieke (jump mixes)
album: medley (the racoon years)
album: Wij zen voor den antwaarp
album: Den drol van Janus
album: Schaamhaar (jump mix)
album: (m)Oraalridders
album: Paterkesdans (jump mixes)
album: Alloewien
album: Vossen
album: Efkes serjeus
album: Drij man en ne peerdekop
album: In ‘t zwart
album: Lak As Nief
album: Drij Man En Ne Peerdekop
album: In 'T Zwart
album: Laat de wapper maar komen
album: Ik Geil Oep Hoefddoeke!
album: Drijendaertigers
album: Niks Oem 't Lijf
album: (Niks oem 't) Lijf [live]
album: Katastrofalia
album: Vijvendaerteg Joare
album: Vrindjespolletiek
album: Loezers
album: Schaft Die Godsdiensten Af!
album: Van 't Schap
album: De Katanationale
album: Rood & Wit
album: 40 Jaar Katastroof
album: Karstekinnekes
album: Zuipe! (Sinister Seven Remix)
album: Zottekot
album: Foert!
track: Triestige Plant

Triestige Plant
type: MusicRecording
duration: PT5M42S
duration ms: 342680
explicit: false
by artist: Tourist LeMC
by artist: Katastroof
by artist: Yello
by artist: Seno
in album: Antwerps Testament
  type: MusicAlbum
  date published: 2013-01-01
genre: belgian-hip-hop
genre: belgian-rock
genre: kleinkunst
isrc code: NLG661300235
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:39:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x816edd24f62483db14ee0b53650f349345b72f39d97192b5af1d1cf282ca59b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG661300235
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+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 0x816edd24f62483db14ee0b53650f349345b72f39d97192b5af1d1cf282ca59b6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLG661300235.
  date published: 2026-06-13T12:53:06Z
audio: Triestige Plant
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.463
  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: 0.779
  additional property: Energy
    type: PropertyValue
    value: 0.608
  additional property: Speechiness
    type: PropertyValue
    value: 0.169
  additional property: Acousticness
    type: PropertyValue
    value: 0.697
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.246
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.382
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.297
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mode Name
type: PropertyValue
value: Major

Den bazepoeper
type: MusicRecording
duration: PT3M1S
duration ms: 181733
explicit: true
by artist: Katastroof
in album: Foefelen
  type: MusicAlbum
  date published: 1979-07-29
isrc code: QZNWW2151285
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T20:45:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf3332e148104d8e7c207b9dfb148569c974b842c56e08c090612851b7795daf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151285
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T23:47:08Z
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 0xcf3332e148104d8e7c207b9dfb148569c974b842c56e08c090612851b7795daf. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:08Z), 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/QZNWW2151285.
  date published: 2026-07-15T23:47:08Z
audio: Den bazepoeper
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.35
  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: 0.677
  additional property: Energy
    type: PropertyValue
    value: 0.407
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.789
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.959
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.126
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mieke
type: MusicRecording
duration: PT2M44S
duration ms: 164533
explicit: false
by artist: Katastroof
in album: Foefelen
  type: MusicAlbum
  date published: 1979-07-29
isrc code: QZNWW2151287
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T17:52:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bced5530c61b457dc2b79bf6ebf66f49d409e455b610236594ebf83c7532a1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957919
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957919
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151287
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T23:58:45Z
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 0x2bced5530c61b457dc2b79bf6ebf66f49d409e455b610236594ebf83c7532a1e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNWW2151287.
  date published: 2026-07-13T23:58:45Z
audio: Mieke
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 74.626
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.519
  additional property: Energy
    type: PropertyValue
    value: 0.398
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.836
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.062
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.796
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.518
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Den bloedrooien band
type: MusicRecording
duration: PT2M31S
duration ms: 151173
explicit: true
by artist: Katastroof
in album: Foefelen
  type: MusicAlbum
  date published: 1979-07-29
isrc code: QZNWW2151288
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T09:38:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5758e37fb497bf0144a4194f228d3d8b595e27b32cede4b43bb161a1696c3f4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956776
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956776
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151288
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:59:37Z
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 0x5758e37fb497bf0144a4194f228d3d8b595e27b32cede4b43bb161a1696c3f4b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWW2151288.
  date published: 2026-07-05T10:59:37Z
audio: Den bloedrooien band
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.046
  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: 0.719
  additional property: Energy
    type: PropertyValue
    value: 0.409
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.73
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.253
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.811
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.99
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Niet te versieren
type: MusicRecording
duration: PT3M5S
duration ms: 185933
explicit: false
by artist: Katastroof
in album: Foefelen
  type: MusicAlbum
  date published: 1979-07-29
isrc code: QZNWW2151291
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T18:34:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e6a95acbd9be733bc507f8652e7eb4986c38a63a46797a8166b7617796d467d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957899
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T19:36:39Z
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 0x7e6a95acbd9be733bc507f8652e7eb4986c38a63a46797a8166b7617796d467d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNWW2151291.
  date published: 2026-07-13T19:36:39Z
audio: Niet te versieren
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.385
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.69
  additional property: Energy
    type: PropertyValue
    value: 0.441
  additional property: Speechiness
    type: PropertyValue
    value: 0.221
  additional property: Acousticness
    type: PropertyValue
    value: 0.626
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.846
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.969
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.431
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Stront aan de knikker II
type: MusicAlbum
date published: 1980-07-29
track: De wielertoerist
  type: MusicRecording
  duration: PT2M37S
  duration ms: 157960
  explicit: false
  by artist: Katastroof
  in album: Stront aan de knikker II
    type: MusicAlbum
    date published: 1980-07-29
  isrc code: QZNWW2187287
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T09:55:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x26c44bc3b45e44722ef827321d4d67aa029a35f3579443625def25e76e4f941a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958142
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958142
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187287
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T12:57:43Z
  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 0x26c44bc3b45e44722ef827321d4d67aa029a35f3579443625def25e76e4f941a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:43Z), 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/QZNWW2187287.
    date published: 2026-07-15T12:57:43Z
  audio: De wielertoerist
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144
    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: 0.659
    additional property: Energy
      type: PropertyValue
      value: 0.398
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.62
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.96
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.597
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De vrouwespecialist
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129506
  explicit: false
  by artist: Katastroof
  in album: Stront aan de knikker II
    type: MusicAlbum
    date published: 1980-07-29
  isrc code: QZNWW2187288
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T21:37:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x162fbb6fcc35fab6544273e979802d1a959c0959a075fa00d6fd83b9b8f1dd3d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958331
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958331
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187288
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:39:41Z
  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 0x162fbb6fcc35fab6544273e979802d1a959c0959a075fa00d6fd83b9b8f1dd3d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:41Z), 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/QZNWW2187288.
    date published: 2026-07-17T00:39:41Z
  audio: De vrouwespecialist
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.326
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.834
    additional property: Energy
      type: PropertyValue
      value: 0.534
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.848
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.239
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.82
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.784
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Juul
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182293
  explicit: false
  by artist: Katastroof
  in album: Stront aan de knikker II
    type: MusicAlbum
    date published: 1980-07-29
  isrc code: QZNWW2187289
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T03:00:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x159f6bdf22f5346053375ad254099d0e1bebdd7efe45707d511880239ee0ed45
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956776
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187289
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Juul
track: Jagersdans
track: Lola
track: Lentelieke
track: Tengels lieke

OTSTimestamp
type: PropertyValue
value: 2026-07-05T10:59:37Z

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 0x159f6bdf22f5346053375ad254099d0e1bebdd7efe45707d511880239ee0ed45. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWW2187289.
date published: 2026-07-05T10:59:37Z

Juul
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.15
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.708
additional property: Energy
  type: PropertyValue
  value: 0.236
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.966
additional property: Instrumentalness
  type: PropertyValue
  value: 0.093
additional property: Liveness
  type: PropertyValue
  value: 0.116
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.719
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.817
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Jagersdans
type: MusicRecording
duration: PT2M19S
duration ms: 139973
explicit: false
by artist: Katastroof
in album: Stront aan de knikker II
  type: MusicAlbum
  date published: 1980-07-29
isrc code: QZNWW2187293
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T04:52:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebf52f61c920ce6f7e1f727cb6e560869a2954028ffd11cb0a56cc8a276382cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958827
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187293
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T07:54:22Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf52f61c920ce6f7e1f727cb6e560869a2954028ffd11cb0a56cc8a276382cf. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:54:22Z), 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/QZNWW2187293.
  date published: 2026-07-20T07:54:22Z
audio: Jagersdans
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.65
  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: 0.67
  additional property: Energy
    type: PropertyValue
    value: 0.539
  additional property: Speechiness
    type: PropertyValue
    value: 0.15
  additional property: Acousticness
    type: PropertyValue
    value: 0.834
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.058
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.915
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.546
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lola
type: MusicRecording
duration: PT2M39S
duration ms: 159893
explicit: false
by artist: Katastroof
in album: Stront aan de knikker II
  type: MusicAlbum
  date published: 1980-07-29
isrc code: QZNWW2187294
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T08:26:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa720bdbf0f919583555de7527f784c93b9379a1b1ca41a93d6a15c8babf4cb3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958853
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958853
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187294
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T11:29:10Z
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 0xfa720bdbf0f919583555de7527f784c93b9379a1b1ca41a93d6a15c8babf4cb3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:29:10Z), 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/QZNWW2187294.
  date published: 2026-07-20T11:29:10Z
audio: Lola
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.249
  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: 0.6
  additional property: Energy
    type: PropertyValue
    value: 0.292
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.764
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.904
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.109
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lentelieke
type: MusicRecording
duration: PT1M55S
duration ms: 115466
explicit: false
by artist: Katastroof
in album: Stront aan de knikker II
  type: MusicAlbum
  date published: 1980-07-29
isrc code: QZNWW2187296
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T15:23:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63b78b2e576d63cd6e56b67a294756079dc0c6bc678f53ca38416d67ce555438
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958300
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958300
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187296
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T16:14:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b78b2e576d63cd6e56b67a294756079dc0c6bc678f53ca38416d67ce555438. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187296.
  date published: 2026-07-16T16:14:30Z
audio: Lentelieke
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.507
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.68
  additional property: Energy
    type: PropertyValue
    value: 0.497
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.527
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.232
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.349
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tengels lieke
type: MusicRecording
duration: PT2M47S
duration ms: 167600
explicit: false
by artist: Katastroof
in album: Stront aan de knikker II
  type: MusicAlbum
  date published: 1980-07-29
isrc code: QZNWW2187297
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T18:37:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x955ce66c9bdd7b9b67c1957ef33b346cdebab9dcd690ee79849f800f255810d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957919
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957919
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2187297
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T23:58:45Z
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 0x955ce66c9bdd7b9b67c1957ef33b346cdebab9dcd690ee79849f800f255810d9. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNWW2187297.
  date published: 2026-07-13T23:58:45Z
audio: Tengels lieke
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.352
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.524
  additional property: Energy
    type: PropertyValue
    value: 0.208
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.355
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.821
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

De zuipschuit
type: MusicAlbum
date published: 1981-07-29
track: 's Zondags in de kerk
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176666
  explicit: true
  by artist: Katastroof
  in album: De zuipschuit
    type: MusicAlbum
    date published: 1981-07-29
  isrc code: QZNWW2189049
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T20:17:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x247f3231cdb91273e2ce1cbb8b8a185b4495abc9dccf014d8dd479aa4cfb1e91
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958197
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958197
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189049
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T23:19:10Z
  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 0x247f3231cdb91273e2ce1cbb8b8a185b4495abc9dccf014d8dd479aa4cfb1e91. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:19:10Z), 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/QZNWW2189049.
    date published: 2026-07-15T23:19:10Z
  audio: 's Zondags in de kerk
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.339
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.709
    additional property: Energy
      type: PropertyValue
      value: 0.55
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.755
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.065
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.969
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.056
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De flikken
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277533
  explicit: false
  by artist: Katastroof
  in album: De zuipschuit
    type: MusicAlbum
    date published: 1981-07-29
  isrc code: QZNWW2189050
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T08:59:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9654aa5dd2d95b5d59bc29b46e281725438501331b4c93f2b1be541014c2a079
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958529
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958529
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189050
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T09:21:41Z
  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 0x9654aa5dd2d95b5d59bc29b46e281725438501331b4c93f2b1be541014c2a079. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZNWW2189050.
    date published: 2026-07-18T09:21:41Z
  audio: De flikken
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.393
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.688
    additional property: Energy
      type: PropertyValue
      value: 0.598
    additional property: Speechiness
      type: PropertyValue
      value: 0.263
    additional property: Acousticness
      type: PropertyValue
      value: 0.756
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.931
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.261
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De kleptomaan
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165000
  explicit: false
  by artist: Katastroof
  in album: De zuipschuit
    type: MusicAlbum
    date published: 1981-07-29
  isrc code: QZNWW2189052
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:30:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb74366d8c5e1e138b433a1dbe2d660da10b1b523cb622d5e4dfe2cfbaa3b4157
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958152
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958152
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189052
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: De kleptomaan
track: Den alkolieker
track: Ik weur (nog) zat

OTSTimestamp
type: PropertyValue
value: 2026-07-15T12:00:27Z

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 0xb74366d8c5e1e138b433a1dbe2d660da10b1b523cb622d5e4dfe2cfbaa3b4157. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZNWW2189052.
date published: 2026-07-15T12:00:27Z

De kleptomaan
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 148.037
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.549
additional property: Energy
  type: PropertyValue
  value: 0.503
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.817
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.308
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.96
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.822
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Den alkolieker
type: MusicRecording
duration: PT2M18S
duration ms: 138000
explicit: false
by artist: Katastroof
in album: De zuipschuit
  type: MusicAlbum
  date published: 1981-07-29
isrc code: QZNWW2189053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T05:35:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3f29a0d7f21231bb2443bac85c3ea7c56fdb7ff94ffaf8300aab3fb5f050a74
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958246
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958246
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189053
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T08:38:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f29a0d7f21231bb2443bac85c3ea7c56fdb7ff94ffaf8300aab3fb5f050a74. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:38:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189053.
  date published: 2026-07-16T08:38:44Z
audio: Den alkolieker
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.893
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.836
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.079
  additional property: Acousticness
    type: PropertyValue
    value: 0.868
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.928
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.002
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ik weur (nog) zat
type: MusicRecording
duration: PT2M14S
duration ms: 134000
explicit: false
by artist: Katastroof
in album: De zuipschuit
  type: MusicAlbum
  date published: 1981-07-29
isrc code: QZNWW2189061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T03:30:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b6d6339dfdae230770c40bd46467c20b886e43d17caa6ecb3cd89a06a2c8aa8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956476
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956476
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189061
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T09:04:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d6339dfdae230770c40bd46467c20b886e43d17caa6ecb3cd89a06a2c8aa8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189061.
  date published: 2026-07-03T09:04:44Z
audio: Ik weur (nog) zat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.27
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.549
  additional property: Energy
    type: PropertyValue
    value: 0.525
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.819
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.253
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.976
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.71
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Den aard van ’t beest
type: MusicAlbum
date published: 1982-07-29
track: Spauwen is gevaarlijk
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144066
  explicit: false
  by artist: Katastroof
  in album: Den aard van ’t beest
    type: MusicAlbum
    date published: 1982-07-29
  isrc code: QZNWW2151472
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T09:08:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeaffc60766680dfef47dcb905e355d766c655004bfd44536850433f377a2b6dc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151472
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  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 0xeaffc60766680dfef47dcb905e355d766c655004bfd44536850433f377a2b6dc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWW2151472.
    date published: 2026-07-18T12:14:37Z
  audio: Spauwen is gevaarlijk
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 70.925
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.606
    additional property: Energy
      type: PropertyValue
      value: 0.216
    additional property: Speechiness
      type: PropertyValue
      value: 0.228
    additional property: Acousticness
      type: PropertyValue
      value: 0.961
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.703
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.797
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: The Robert-song
  type: MusicRecording
  duration: PT2M19S
  duration ms: 139333
  explicit: true
  by artist: Katastroof
  in album: Den aard van ’t beest
    type: MusicAlbum
    date published: 1982-07-29
  isrc code: QZNWW2151476
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T23:39:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x454704c0a26fdcca3b17e10f2b71a81c59db44009a67941540f3c48925d61889
  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/QZNWW2151476
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454704c0a26fdcca3b17e10f2b71a81c59db44009a67941540f3c48925d61889. 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/QZNWW2151476.
    date published: 2026-07-02T16:51:38Z
  audio: The Robert-song
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.796
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.735
    additional property: Energy
      type: PropertyValue
      value: 0.577
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.601
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.96
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.04
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De lifter
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175040
  explicit: false
  by artist: Katastroof
  in album: Den aard van ’t beest
    type: MusicAlbum
    date published: 1982-07-29
  isrc code: QZNWW2151480
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T03:18:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6c98ca53d583d1bb1582c7bb52489bd31b15b298d0120e3f4f484f227599708e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151480
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: De lifter
track: Goesting voor te blete
track: De wereld gaat naar de kloten

OTSTimestamp
type: PropertyValue
value: 2026-07-19T07:14:39Z

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 0x6c98ca53d583d1bb1582c7bb52489bd31b15b298d0120e3f4f484f227599708e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWW2151480.
date published: 2026-07-19T07:14:39Z

De lifter
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.748
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.76
additional property: Energy
  type: PropertyValue
  value: 0.444
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.318
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.057
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.926
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.132
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Goesting voor te blete
type: MusicRecording
duration: PT2M59S
duration ms: 179600
explicit: false
by artist: Katastroof
in album: Den aard van ’t beest
  type: MusicAlbum
  date published: 1982-07-29
isrc code: QZNWW2151481
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T10:36:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x979648a94165b4e0fbd6460dc944e208fec9205cd2a0b6770182e73e3265d3f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958152
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958152
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151481
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T12:00:27Z
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 0x979648a94165b4e0fbd6460dc944e208fec9205cd2a0b6770182e73e3265d3f8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZNWW2151481.
  date published: 2026-07-15T12:00:27Z
audio: Goesting voor te blete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.984
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.447
  additional property: Energy
    type: PropertyValue
    value: 0.312
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.82
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.593
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.926
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

De wereld gaat naar de kloten
type: MusicRecording
duration: PT2M36S
duration ms: 156333
explicit: true
by artist: Katastroof
in album: Den aard van ’t beest
  type: MusicAlbum
  date published: 1982-07-29
isrc code: QZNWW2151483
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T18:53:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75748ce16b2da0e1b1eafde6e3376e7cd9e6d05ef97c8d03385b17cd6391c419
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956841
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956841
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151483
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T22:14:35Z
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 0x75748ce16b2da0e1b1eafde6e3376e7cd9e6d05ef97c8d03385b17cd6391c419. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZNWW2151483.
  date published: 2026-07-05T22:14:35Z
audio: De wereld gaat naar de kloten
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.556
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.704
  additional property: Energy
    type: PropertyValue
    value: 0.242
  additional property: Speechiness
    type: PropertyValue
    value: 0.173
  additional property: Acousticness
    type: PropertyValue
    value: 0.884
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.697
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.965
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Noch vis noch vlees
type: MusicAlbum
date published: 1984-07-29
track: Maandagmorgen
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194000
  explicit: false
  by artist: Katastroof
  in album: Noch vis noch vlees
    type: MusicAlbum
    date published: 1984-07-29
  isrc code: QZNWW2151484
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T18:49:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0dd9111ba93bf290549303a1428720629c32e13d57366890fb97013a1db07d4d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957899
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957899
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151484
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T19:36:39Z
  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 0x0dd9111ba93bf290549303a1428720629c32e13d57366890fb97013a1db07d4d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNWW2151484.
    date published: 2026-07-13T19:36:39Z
  audio: Maandagmorgen
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.379
    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: 0.849
    additional property: Energy
      type: PropertyValue
      value: 0.674
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.418
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.144
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.969
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.34
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Den drinker
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277373
  explicit: false
  by artist: Katastroof
  in album: Noch vis noch vlees
    type: MusicAlbum
    date published: 1984-07-29
  isrc code: QZNWW2151489
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T13:04:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x32e72916ec877f87cc856b594998e2587f878eb3cb4faeee239d12787779767e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151489
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e72916ec877f87cc856b594998e2587f878eb3cb4faeee239d12787779767e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151489.
    date published: 2026-07-05T19:27:56Z
  audio: Den drinker
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.592
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.506
    additional property: Energy
      type: PropertyValue
      value: 0.4
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.639
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.7
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.496
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Weerzien
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228866
  explicit: false
  by artist: Katastroof
  in album: Noch vis noch vlees
    type: MusicAlbum
    date published: 1984-07-29
  isrc code: QZNWW2151494
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T19:36:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe1c8405520074899013d84ce967deea0e671f9030ed3194242d1829f0353dacc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151494
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Weerzien

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:26:17Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c8405520074899013d84ce967deea0e671f9030ed3194242d1829f0353dacc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151494.
date published: 2026-07-06T01:26:17Z

Weerzien
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 177.425
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.526
additional property: Energy
  type: PropertyValue
  value: 0.246
additional property: Speechiness
  type: PropertyValue
  value: 0.045
additional property: Acousticness
  type: PropertyValue
  value: 0.915
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.115
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.528
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.152
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Hete winters
type: MusicAlbum
date published: 1986-07-29
track: De kabouterkes
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138666
  explicit: false
  by artist: Katastroof
  in album: Hete winters
    type: MusicAlbum
    date published: 1986-07-29
  isrc code: QZNWW2189064
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T16:11:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4bece6c77ce15911e3a707f8159a20b3f007a6eb9af0eca3f226dce736e0f7cd
  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/QZNWW2189064
  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 0x4bece6c77ce15911e3a707f8159a20b3f007a6eb9af0eca3f226dce736e0f7cd. 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/QZNWW2189064.
    date published: 2026-07-18T19:27:02Z
  audio: De kabouterkes
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.264
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.59
    additional property: Energy
      type: PropertyValue
      value: 0.317
    additional property: Speechiness
      type: PropertyValue
      value: 0.076
    additional property: Acousticness
      type: PropertyValue
      value: 0.702
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.81
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.699
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Overspel
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171000
  explicit: false
  by artist: Katastroof
  in album: Hete winters
    type: MusicAlbum
    date published: 1986-07-29
  isrc code: QZNWW2189066
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T17:45:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9bcdb4b6ade67f7b6f2f5b58da5d1066b109a1800f4c1be731bbb1a85fbca857
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189066
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T18:21:04Z
  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 0x9bcdb4b6ade67f7b6f2f5b58da5d1066b109a1800f4c1be731bbb1a85fbca857. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNWW2189066.
    date published: 2026-07-13T18:21:04Z
  audio: Overspel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.099
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.569
    additional property: Energy
      type: PropertyValue
      value: 0.424
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.675
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.251
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.693
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.515
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Met de wijven niks as last
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239733
  explicit: false
  by artist: Katastroof
  in album: Hete winters
    type: MusicAlbum
    date published: 1986-07-29
  isrc code: QZNWW2189070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T23:36:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x045d896d3dbd51f4e7ef021b969b6b6cd0bd79a9ceee9c3abfbcbd675cf5ed62
  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/QZNWW2189070
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Met de wijven niks as last

OTSTimestamp
type: PropertyValue
value: 2026-07-02T16:51:38Z

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 0x045d896d3dbd51f4e7ef021b969b6b6cd0bd79a9ceee9c3abfbcbd675cf5ed62. 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/QZNWW2189070.
date published: 2026-07-02T16:51:38Z

Met de wijven niks as last
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 106.579
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: 0.58
additional property: Energy
  type: PropertyValue
  value: 0.636
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.463
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.312
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.854
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.31
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Belgeland
type: MusicAlbum
date published: 1988-07-29

Den aanhouwer wint
type: MusicAlbum
date published: 1988-07-29
track: Het geloof
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255000
  explicit: false
  by artist: Katastroof
  in album: Den aanhouwer wint
    type: MusicAlbum
    date published: 1988-07-29
  isrc code: QZNWW2189076
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T09:30:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd21f7ae0daca88fc91213ea69f49da8570556aa3e9e6f5890a5bf7ed8e7346cd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957834
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957834
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189076
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T09:42:16Z
  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 0xd21f7ae0daca88fc91213ea69f49da8570556aa3e9e6f5890a5bf7ed8e7346cd. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZNWW2189076.
    date published: 2026-07-13T09:42:16Z
  audio: Het geloof
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 199.987
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.367
    additional property: Energy
      type: PropertyValue
      value: 0.55
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.677
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.747
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.338
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ontwaken
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223533
  explicit: false
  by artist: Katastroof
  in album: Den aanhouwer wint
    type: MusicAlbum
    date published: 1988-07-29
  isrc code: QZNWW2189082
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T19:08:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x41a31c51dd2dd2b9a16dae3179c544c2b183a1bf2a2051dbbe65ec3ce4801932
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958054
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958054
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2189082
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T19:33:24Z
  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 0x41a31c51dd2dd2b9a16dae3179c544c2b183a1bf2a2051dbbe65ec3ce4801932. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZNWW2189082.
    date published: 2026-07-14T19:33:24Z
  audio: Ontwaken
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.786
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.528
    additional property: Energy
      type: PropertyValue
      value: 0.134
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.937
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.307
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.478
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Duveltjeskermis
type: MusicAlbum
date published: 1990-07-29
track: Helemaal onderin d'rin
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145640
  explicit: false
  by artist: Katastroof
  in album: Duveltjeskermis
    type: MusicAlbum
    date published: 1990-07-29
  isrc code: QZNWW2151961
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:08:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4c07e871dab2590357e4e6e0d23cbd010ef824ecc2037f22ce6418bf4f03581d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151961
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T10:47:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c07e871dab2590357e4e6e0d23cbd010ef824ecc2037f22ce6418bf4f03581d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2151961.
    date published: 2026-07-03T10:47:44Z
  audio: Helemaal onderin d'rin
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.958
    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: 0.646
    additional property: Energy
      type: PropertyValue
      value: 0.484
    additional property: Speechiness
      type: PropertyValue
      value: 0.097
    additional property: Acousticness
      type: PropertyValue
      value: 0.754
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.891
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.663
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Monsterboelekes
type: MusicAlbum
date published: 1991-07-29

Ramp-zalig
type: MusicAlbum
date published: 1994-07-29
track: Afgaan lak ne gieter
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114333
  explicit: false
  by artist: Katastroof
  in album: Ramp-zalig
    type: MusicAlbum
    date published: 1994-07-29
  isrc code: QZNWW2190854
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T23:59:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa90baa2a767511f27095a0719f938c2a4658ec6b30a1d9ea6addb7101608f1da
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2190854
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T01:01:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90baa2a767511f27095a0719f938c2a4658ec6b30a1d9ea6addb7101608f1da. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2190854.
    date published: 2026-07-03T01:01:38Z
  audio: Afgaan lak ne gieter
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.21
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.837
    additional property: Energy
      type: PropertyValue
      value: 0.847
    additional property: Speechiness
      type: PropertyValue
      value: 0.083
    additional property: Acousticness
      type: PropertyValue
      value: 0.441
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.051
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.774
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.612
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Kleer v'r de strijd
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154293
  explicit: false
  by artist: Katastroof
  in album: Ramp-zalig
    type: MusicAlbum
    date published: 1994-07-29
  isrc code: QZNWW2190858
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T21:13:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x688bac6de3e5169a441f752838c89c5c409bc8f944ef5191b23d4d82404ac079
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958331
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958331
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2190858
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:18:55Z
  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 0x688bac6de3e5169a441f752838c89c5c409bc8f944ef5191b23d4d82404ac079. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:18:55Z), 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/QZNWW2190858.
    date published: 2026-07-17T00:18:55Z
  audio: Kleer v'r de strijd
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 116.432
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.656
    additional property: Energy
      type: PropertyValue
      value: 0.508
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.81
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.265
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.668
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.654
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Zwijnen zonder parels
type: MusicAlbum
date published: 1996-11-01
track: Bus vol ollanders
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206120
  explicit: false
  by artist: Katastroof
  in album: Zwijnen zonder parels
    type: MusicAlbum
    date published: 1996-11-01
  isrc code: QZNWW2152871
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T02:08:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x55cb596efd7bd98067718b53835c254f0eea5b45b19a90ead493c415a8fa52d9
  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
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2152871
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  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 0x55cb596efd7bd98067718b53835c254f0eea5b45b19a90ead493c415a8fa52d9. 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/QZNWW2152871.
    date published: 2026-07-04T11:19:20Z
  audio: Bus vol ollanders
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.489
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.632
    additional property: Energy
      type: PropertyValue
      value: 0.547
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.521
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.625
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.876
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.579
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Johnny
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235786
  explicit: false
  by artist: Katastroof
  in album: Zwijnen zonder parels
    type: MusicAlbum
    date published: 1996-11-01
  isrc code: QZNWW2152875
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T20:20:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd65506d1aaeeb9ee9b32199c0df3c6f122fee31d865f2e38013a3c2b52b402b3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958322
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958322
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2152875
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T23:24:41Z
  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 0xd65506d1aaeeb9ee9b32199c0df3c6f122fee31d865f2e38013a3c2b52b402b3. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:24:41Z), 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/QZNWW2152875.
    date published: 2026-07-16T23:24:41Z
  audio: Johnny
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.967
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.745
    additional property: Energy
      type: PropertyValue
      value: 0.934
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.024
    additional property: Liveness
      type: PropertyValue
      value: 0.27
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.934
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.823
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Ambi-jaans
type: MusicAlbum
date published: 1997-07-29

Nachtbraken
type: MusicAlbum
date published: 1997-07-29
track: Rapper
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142600
  explicit: false
  by artist: Katastroof
  in album: Nachtbraken
    type: MusicAlbum
    date published: 1997-07-29
  isrc code: QZNWW2154075
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T00:00:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb04d7827331ff5f1385c47635b53541220fcd133fd642d4a8ce00b5d144ce043
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2154075
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T01:01:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04d7827331ff5f1385c47635b53541220fcd133fd642d4a8ce00b5d144ce043. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2154075.
    date published: 2026-07-03T01:01:38Z
  audio: Rapper
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.954
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.762
    additional property: Energy
      type: PropertyValue
      value: 0.738
    additional property: Speechiness
      type: PropertyValue
      value: 0.078
    additional property: Acousticness
      type: PropertyValue
      value: 0.309
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.242
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.963
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.895
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Leven in de brouwerij
type: MusicAlbum
date published: 1998-07-29
track: Rock en rool
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198333
  explicit: false
  by artist: Katastroof
  in album: Leven in de brouwerij
    type: MusicAlbum
    date published: 1998-07-29
  isrc code: QZNWW2154109
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T15:23:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x70cd8cf5b2481c16a289172fbb0fd24737ec752ea1c7142eb345ba24abd62522
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2154109
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T18:25:13Z
  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 0x70cd8cf5b2481c16a289172fbb0fd24737ec752ea1c7142eb345ba24abd62522. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:25:13Z), 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/QZNWW2154109.
    date published: 2026-07-19T18:25:13Z
  audio: Rock en rool
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.571
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.479
    additional property: Energy
      type: PropertyValue
      value: 0.736
    additional property: Speechiness
      type: PropertyValue
      value: 0.094
    additional property: Acousticness
      type: PropertyValue
      value: 0.004
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.45
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.728
    additional property: Key Name
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    additional property: Mode Name
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Zuipe (jump mixes)
type: MusicAlbum
date published: 2000-07-29

Met de wijven niks as last (jump mixes)
type: MusicAlbum
date published: 2000-07-29

Tdeuts lieke (jump mixes)
type: MusicAlbum
date published: 2000-07-29

medley (the racoon years)
type: MusicAlbum
date published: 2000-07-29

Wij zen voor den antwaarp
type: MusicAlbum
date published: 2000-07-29

Den drol van Janus
type: MusicAlbum
date published: 2000-07-29

Schaamhaar (jump mix)
type: MusicAlbum
date published: 2000-07-29

(m)Oraalridders
type: MusicAlbum
date published: 2002-07-29

Paterkesdans (jump mixes)
type: MusicAlbum
date published: 2003-07-29

Alloewien
type: MusicAlbum
date published: 2003-07-29

Vossen
type: MusicAlbum
date published: 2004-07-29
track: Sjareltje
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159477
  explicit: false
  by artist: Katastroof
  in album: Vossen
    type: MusicAlbum
    date published: 2004-07-29
  isrc code: QZNWW2190968
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T07:48:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c404331969acd6b21f37c2b85fbcffb21eed6dba859839a24ab36f8f034f2b0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958846
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958846
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2190968
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T10:51:14Z
  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 0x9c404331969acd6b21f37c2b85fbcffb21eed6dba859839a24ab36f8f034f2b0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:51:14Z), 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/QZNWW2190968.
    date published: 2026-07-20T10:51:14Z
  audio: Sjareltje
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.517
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.816
    additional property: Energy
      type: PropertyValue
      value: 0.383
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.832
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.911
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.336
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Efkes serjeus
type: MusicAlbum
date published: 2005-07-29

Drij man en ne peerdekop
type: MusicAlbum
date published: 2006-07-29
track: Antwaarpe boave
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216986
  explicit: false
  by artist: Katastroof
  in album: Drij man en ne peerdekop
    type: MusicAlbum
    date published: 2006-07-29
  isrc code: QZNWX2102851
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T07:59:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x432e1af4220d19a61e5b04109ef8a0a42daa8b20fe5ece19d29343b890713110
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958846
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958846
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2102851
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T11:00:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432e1af4220d19a61e5b04109ef8a0a42daa8b20fe5ece19d29343b890713110. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2102851.
    date published: 2026-07-20T11:00:56Z
  audio: Antwaarpe boave
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.651
    additional property: Energy
      type: PropertyValue
      value: 0.81
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.231
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.408
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.812
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.895
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

In ‘t zwart
type: MusicAlbum
date published: 2008-07-29

Lak As Nief
type: MusicAlbum
date published: 2008-11-28

Drij Man En Ne Peerdekop
type: MusicAlbum
date published: 2008-11-28

Alloewien
type: MusicAlbum
date published: 2008-12-05

In 'T Zwart
type: MusicAlbum
date published: 2009-01-09

Laat de wapper maar komen
type: MusicAlbum
date published: 2009-09-25

Ik Geil Oep Hoefddoeke!
type: MusicAlbum
date published: 2009-11-18

Drijendaertigers
type: MusicAlbum
date published: 2010-07-29

Drijendaertigers
type: MusicAlbum
date published: 2010-11-26

Niks Oem 't Lijf
type: MusicAlbum
date published: 2011-02-25

(Niks oem 't) Lijf [live]
type: MusicAlbum
date published: 2011-07-29

Katastrofalia
type: MusicAlbum
date published: 2011-11-25

Katastrofalia
type: MusicAlbum
date published: 2011-11-25

Katastrofalia
type: MusicAlbum
date published: 2011-11-25

Katastrofalia
type: MusicAlbum
date published: 2011-11-25
track: Antwaerpe Boave
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216813
  explicit: false
  by artist: Katastroof
  in album: Katastrofalia
    type: MusicAlbum
    date published: 2011-11-25
  isrc code: BEK011102346
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T21:32:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe80b7fdd25b4130c546ec0bf7319581bffe4738b6ae595083f7d924763ce1283
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958331
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958331
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011102346
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:35:35Z
  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 0xe80b7fdd25b4130c546ec0bf7319581bffe4738b6ae595083f7d924763ce1283. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:35Z), 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/BEK011102346.
    date published: 2026-07-17T00:35:35Z
  audio: Antwaerpe Boave
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.917
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.602
    additional property: Energy
      type: PropertyValue
      value: 0.68
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.49
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.345
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.715
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.16
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ontdopingslieke
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219693
  explicit: false
  by artist: Katastroof
  in album: Katastrofalia
    type: MusicAlbum
    date published: 2011-11-25
  isrc code: BEK011102359
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T09:15:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1acc29ec9c4d68ada94259ef28bfab7bbd818e7bd0aea523647e107ae3238581
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956576
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956576
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011102359
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T02:06:47Z
  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 0x1acc29ec9c4d68ada94259ef28bfab7bbd818e7bd0aea523647e107ae3238581. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BEK011102359.
    date published: 2026-07-04T02:06:47Z
  audio: Ontdopingslieke
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.05
    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: 0.641
    additional property: Energy
      type: PropertyValue
      value: 0.648
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.864
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.709
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.943
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Aentwaerpe Schoon En Goed
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218413
  explicit: false
  by artist: Katastroof
  in album: Katastrofalia
    type: MusicAlbum
    date published: 2011-11-25
  isrc code: BEK011102360
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T17:44:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5b324cfc10f924cceef73f7722456cbba085d155c481755f9f5c9ddcb801f85f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011102360
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Aentwaerpe Schoon En Goed

OTSTimestamp
type: PropertyValue
value: 2026-07-13T18:21:04Z

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 0x5b324cfc10f924cceef73f7722456cbba085d155c481755f9f5c9ddcb801f85f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BEK011102360.
date published: 2026-07-13T18:21:04Z

Aentwaerpe Schoon En Goed
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 197.215
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.473
additional property: Energy
  type: PropertyValue
  value: 0.335
additional property: Speechiness
  type: PropertyValue
  value: 0.053
additional property: Acousticness
  type: PropertyValue
  value: 0.801
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.096
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.384
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.403
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

Katastrofalia
type: MusicAlbum
date published: 2011-11-25

Vijvendaerteg Joare
type: MusicAlbum
date published: 2012-12-03

Vijvendaerteg Joare
type: MusicAlbum
date published: 2012-12-03

Vijvendaerteg Joare
type: MusicAlbum
date published: 2012-12-03

Vrindjespolletiek
type: MusicAlbum
date published: 2013-04-01

Vrindjespolletiek
type: MusicAlbum
date published: 2013-04-01

Vrindjespolletiek
type: MusicAlbum
date published: 2013-04-01

Vrindjespolletiek
type: MusicAlbum
date published: 2013-04-01

Vrindjespolletiek
type: MusicAlbum
date published: 2013-04-01
track: Goesting V'r Te Bleite (met Tourist)
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257200
  explicit: false
  by artist: Katastroof
  in album: Vrindjespolletiek
    type: MusicAlbum
    date published: 2013-04-01
  isrc code: BEK011300034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T03:09:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x747bb31ce7163fba6853fa60539061398a1c88015e87e81c1c814e30be29ae4d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956776
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011300034
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:59:37Z
  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 0x747bb31ce7163fba6853fa60539061398a1c88015e87e81c1c814e30be29ae4d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BEK011300034.
    date published: 2026-07-05T10:59:37Z
  audio: Goesting V'r Te Bleite (met Tourist)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 87.417
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.654
    additional property: Energy
      type: PropertyValue
      value: 0.402
    additional property: Speechiness
      type: PropertyValue
      value: 0.179
    additional property: Acousticness
      type: PropertyValue
      value: 0.607
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.055
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.467
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.002
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Loezers
type: MusicAlbum
date published: 2014-05-30
track: Tinternet
  type: MusicRecording
  duration: PT1M42S
  duration ms: 102346
  explicit: false
  by artist: Katastroof
  in album: Loezers
    type: MusicAlbum
    date published: 2014-05-30
  isrc code: BEK011400123
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T17:56:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7b389cf16614c8f46691c80d404e490d51cdecdd7f7115093bb94e3e2ed6bfa4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957892
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957892
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011400123
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T18:21:16Z
  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 0x7b389cf16614c8f46691c80d404e490d51cdecdd7f7115093bb94e3e2ed6bfa4. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/BEK011400123.
    date published: 2026-07-13T18:21:16Z
  audio: Tinternet
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.675
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.528
    additional property: Energy
      type: PropertyValue
      value: 0.486
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.67
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.29
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.953
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.084
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ouwe Zak
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193973
  explicit: false
  by artist: Katastroof
  in album: Loezers
    type: MusicAlbum
    date published: 2014-05-30
  isrc code: BEK011400124
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T20:57:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x153ecd46d34300436e0a4895f5aba9bb0a7133188c0cf95df4dcf4aeaad2c75e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958324
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958324
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011400124
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T23:58:38Z
  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 0x153ecd46d34300436e0a4895f5aba9bb0a7133188c0cf95df4dcf4aeaad2c75e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:58:38Z), 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/BEK011400124.
    date published: 2026-07-16T23:58:38Z
  audio: Ouwe Zak
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.075
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.738
    additional property: Energy
      type: PropertyValue
      value: 0.414
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.87
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.171
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.947
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.035
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Loezers
type: MusicAlbum
date published: 2014-05-30

Loezers
type: MusicAlbum
date published: 2014-05-30

Loezers
type: MusicAlbum
date published: 2014-05-30

Schaft Die Godsdiensten Af!
type: MusicAlbum
date published: 2016-05-09

Schaft Die Godsdiensten Af!
type: MusicAlbum
date published: 2016-05-09

Schaft Die Godsdiensten Af!
type: MusicAlbum
date published: 2016-05-09

Van 't Schap
type: MusicAlbum
date published: 2016-11-04
track: Wij Drinken Duvel
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151546
  explicit: false
  by artist: Katastroof
  in album: Van 't Schap
    type: MusicAlbum
    date published: 2016-11-04
  isrc code: BESTF1600011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T23:36:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4fff39130c2706fde12a5d037257a45477d93cbf823a66f1c3b9186005e66fac
  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/BESTF1600011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff39130c2706fde12a5d037257a45477d93cbf823a66f1c3b9186005e66fac. 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/BESTF1600011.
    date published: 2026-07-02T16:51:38Z
  audio: Wij Drinken Duvel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.244
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.699
    additional property: Energy
      type: PropertyValue
      value: 0.617
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.159
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.187
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.768
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Wij Wille Tette Zien
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266666
  explicit: false
  by artist: Katastroof
  in album: Van 't Schap
    type: MusicAlbum
    date published: 2016-11-04
  isrc code: BESTF1600022
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T07:24:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf26f6c632cf71f72a951951525d573468276205a71ce468414f6c69b83f6d270
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BESTF1600022
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f6c632cf71f72a951951525d573468276205a71ce468414f6c69b83f6d270. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BESTF1600022.
    date published: 2026-07-04T10:04:33Z
  audio: Wij Wille Tette Zien
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.98
    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: 0.599
    additional property: Energy
      type: PropertyValue
      value: 0.803
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.395
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.786
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.113
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Van 't Schap
type: MusicAlbum
date published: 2016-11-04

Van 't Schap
type: MusicAlbum
date published: 2016-11-04

De Katanationale
type: MusicAlbum
date published: 2016-11-08

De Katanationale
type: MusicAlbum
date published: 2016-11-08

Rood & Wit
type: MusicAlbum
date published: 2017-03-27

Rood & Wit
type: MusicAlbum
date published: 2017-03-27

Rood & Wit
type: MusicAlbum
date published: 2017-03-27

40 Jaar Katastroof
type: MusicAlbum
date published: 2017-05-19
track: De Man Is Minderwaardig
  type: MusicRecording
  duration: PT1M59S
  duration ms: 119651
  explicit: false
  by artist: Katastroof
  in album: 40 Jaar Katastroof
    type: MusicAlbum
    date published: 2017-05-19
  isrc code: BEUM70900153
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:17:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x87d63743e6cbc18ea6e0036a9217393c94f982e434512abeed63538bd74c06dd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEUM70900153
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  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 0x87d63743e6cbc18ea6e0036a9217393c94f982e434512abeed63538bd74c06dd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BEUM70900153.
    date published: 2026-07-18T12:14:37Z
  audio: De Man Is Minderwaardig
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.589
    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: 0.613
    additional property: Energy
      type: PropertyValue
      value: 0.564
    additional property: Speechiness
      type: PropertyValue
      value: 0.106
    additional property: Acousticness
      type: PropertyValue
      value: 0.908
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.307
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.849
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.526
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: De Kabouterkes
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136431
  explicit: false
  by artist: Katastroof
  in album: 40 Jaar Katastroof
    type: MusicAlbum
    date published: 2017-05-19
  isrc code: BEK011489305
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T00:02:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5009f6cb97221e7e487ca7a498af191b1b45d2a891e7ea316b8650eb885ae480
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956440
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956440
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011489305
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T04:03:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5009f6cb97221e7e487ca7a498af191b1b45d2a891e7ea316b8650eb885ae480. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011489305.
    date published: 2026-07-03T04:03:57Z
  audio: De Kabouterkes
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.779
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.584
    additional property: Energy
      type: PropertyValue
      value: 0.339
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.697
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.14
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.811
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.16
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Spauwen
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141551
  explicit: false
  by artist: Katastroof
  in album: 40 Jaar Katastroof
    type: MusicAlbum
    date published: 2017-05-19
  isrc code: BEK011489317
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T19:54:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22783d3b3c38326206254059e0d2348bb4dd34170e97385a4520f9a10eb879c7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958194
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958194
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011489317
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Spauwen
track: Rood & Wit

OTSTimestamp
type: PropertyValue
value: 2026-07-15T22:55:42Z

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 0x22783d3b3c38326206254059e0d2348bb4dd34170e97385a4520f9a10eb879c7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:55:42Z), 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/BEK011489317.
date published: 2026-07-15T22:55:42Z

Spauwen
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.755
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.709
additional property: Energy
  type: PropertyValue
  value: 0.212
additional property: Speechiness
  type: PropertyValue
  value: 0.224
additional property: Acousticness
  type: PropertyValue
  value: 0.94
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.16
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.742
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.025
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Rood & Wit
type: MusicRecording
duration: PT3M6S
duration ms: 186480
explicit: false
by artist: Katastroof
in album: 40 Jaar Katastroof
  type: MusicAlbum
  date published: 2017-05-19
isrc code: BEK011700102
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T06:24:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72218bbe0d2ea5f3b3e20fad4cb8b42a9b24c37d712360f68497033d588f4add
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958383
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958383
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011700102
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T08:20:01Z
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 0x72218bbe0d2ea5f3b3e20fad4cb8b42a9b24c37d712360f68497033d588f4add. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BEK011700102.
  date published: 2026-07-17T08:20:01Z
audio: Rood & Wit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.314
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.612
  additional property: Energy
    type: PropertyValue
    value: 0.572
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.485
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.303
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.606
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.156
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

40 Jaar Katastroof
type: MusicAlbum
date published: 2017-05-19

40 Jaar Katastroof
type: MusicAlbum
date published: 2017-05-19

Karstekinnekes
type: MusicAlbum
date published: 2018-11-16

Karstekinnekes
type: MusicAlbum
date published: 2018-11-16

Karstekinnekes
type: MusicAlbum
date published: 2018-11-16

Zuipe! (Sinister Seven Remix)
type: MusicAlbum
date published: 2022-09-02

Zottekot
type: MusicAlbum
date published: 2022-09-09
track: Handjesvol
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188288
  explicit: false
  by artist: Katastroof
  in album: Zottekot
    type: MusicAlbum
    date published: 2022-09-09
  isrc code: BEK012200158
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T16:44:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd53e7b34eae36b67c36b17a8615d6ad3b2e3e7246bcef8fb534e219cd75f684a
  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/BEK012200158
  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 0xd53e7b34eae36b67c36b17a8615d6ad3b2e3e7246bcef8fb534e219cd75f684a. 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/BEK012200158.
    date published: 2026-07-18T19:27:02Z
  audio: Handjesvol
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.077
    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: 0.678
    additional property: Energy
      type: PropertyValue
      value: 0.685
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.197
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.897
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.458
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Foert!
type: MusicAlbum
date published: 2024-11-29
track: Blijve Gaan
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292124
  explicit: false
  by artist: Katastroof
  in album: Foert!
    type: MusicAlbum
    date published: 2024-11-29
  isrc code: BEK012400432
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T16:58:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfef23eb7066d9d3ac683fd9877014f757f6a22528615e8853488d67ce68437b6
  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/BEK012400432
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T20:00:29Z
  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 0xfef23eb7066d9d3ac683fd9877014f757f6a22528615e8853488d67ce68437b6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:29Z), 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/BEK012400432.
    date published: 2026-07-19T20:00:29Z
  audio: Blijve Gaan
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.063
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.799
    additional property: Energy
      type: PropertyValue
      value: 0.704
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0.443
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.677
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.011
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
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track: Gezopen
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146000
  explicit: false
  by artist: Katastroof
  in album: Foert!
    type: MusicAlbum
    date published: 2024-11-29
  isrc code: BEK012400433
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T18:48:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1a4f0f893bee46440ad78427cfc914b984fbc790d3c3817f27ebd8a690291013
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK012400433
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 0x1a4f0f893bee46440ad78427cfc914b984fbc790d3c3817f27ebd8a690291013. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BEK012400433.
    date published: 2026-07-05T01:43:49Z
  audio: Gezopen
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.975
    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: 0.785
    additional property: Energy
      type: PropertyValue
      value: 0.569
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.644
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.334
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.56
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.274
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major