Lustrum U.V.S.V./N.V.V.S.U.
type: MusicGroup
popularity: 44
followers: 644
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x413ba0b1ed24fcaca1b3d5f2a87f5b6766bc0ca4c59858a36ca0365a3ac58bec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/326bc978-a542-4873-8bdb-99ed3f8df5cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/326bc978-a542-4873-8bdb-99ed3f8df5cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/326bc978-a542-4873-8bdb-99ed3f8df5cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x413ba0b1ed24fcaca1b3d5f2a87f5b6766bc0ca4c59858a36ca0365a3ac58bec","name":"Lustrum U.V.S.V./N.V.V.S.U.","registered_at":"2026-06-11T15:39:30Z","symbol":"NIM0066142","token_address":"0x4ca1adea2f19cbf8d22deb3c3b5862ccd106cbf2","type":"artist","uuid":"326bc978-a542-4873-8bdb-99ed3f8df5cd"}
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 → block must exist at that height 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 0x413ba0b1ed24fcaca1b3d5f2a87f5b6766bc0ca4c59858a36ca0365a3ac58bec. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/326bc978-a542-4873-8bdb-99ed3f8df5cd.json and https://artists.proofprofile.net/proofs/artist/326bc978-a542-4873-8bdb-99ed3f8df5cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x413ba0b1ed24fcaca1b3d5f2a87f5b6766bc0ca4c59858a36ca0365a3ac58bec","name":"Lustrum U.V.S.V./N.V.V.S.U.","registered_at":"2026-06-11T15:39:30Z","symbol":"NIM0066142","token_address":"0x4ca1adea2f19cbf8d22deb3c3b5862ccd106cbf2","type":"artist","uuid":"326bc978-a542-4873-8bdb-99ed3f8df5cd"}
album: Lotje
  type: MusicAlbum
  date published: 2024-03-08
  track: Lotje
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166829
    explicit: true
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Lotje
      type: MusicAlbum
      date published: 2024-03-08
album: Lotje
  type: MusicAlbum
  date published: 2024-03-08
  track: Lotje
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166829
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Lotje
      type: MusicAlbum
      date published: 2024-03-08
album: Op Zoek Naar Jou
  type: MusicAlbum
  date published: 2024-04-26
  track: Op Zoek Naar Jou
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144761
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Op Zoek Naar Jou
      type: MusicAlbum
      date published: 2024-04-26
album: Zilver Randje
  type: MusicAlbum
  date published: 2024-05-07
  track: Zilver Randje
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200571
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Zilver Randje
      type: MusicAlbum
      date published: 2024-05-07
    isrc code: NL1X12400002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-11T02:24:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956826
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/0wUle22IqqziVU1MpEmzsG.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wUle22IqqziVU1MpEmzsG
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"0wUle22IqqziVU1MpEmzsG","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wUle22IqqziVU1MpEmzsG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wUle22IqqziVU1MpEmzsG.
      date published: 2026-07-05T19:27:56Z
      text: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"0wUle22IqqziVU1MpEmzsG","type":"track"}
album: Hartslag
  type: MusicAlbum
  date published: 2024-05-16
  track: Hartslag
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144023
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Hartslag
      type: MusicAlbum
      date published: 2024-05-16
album: Domineren De Nacht
  type: MusicAlbum
  date published: 2024-05-27
  track: Domineren De Nacht
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180000
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Domineren De Nacht
      type: MusicAlbum
      date published: 2024-05-27
    isrc code: NL1X12400004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-07T02:38:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956440
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956440
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/1CmMXXHyk5c3gNpAOH7s4p.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CmMXXHyk5c3gNpAOH7s4p
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T04:03:57Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"1CmMXXHyk5c3gNpAOH7s4p","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1CmMXXHyk5c3gNpAOH7s4p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CmMXXHyk5c3gNpAOH7s4p.
      date published: 2026-07-03T04:03:57Z
      text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"1CmMXXHyk5c3gNpAOH7s4p","type":"track"}
album: Nostalgie
  type: MusicAlbum
  date published: 2024-06-10
  track: Nostalgie
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127968
    explicit: false
    by artist: Lustrum U.V.S.V./N.V.V.S.U.
    in album: Nostalgie
      type: MusicAlbum
      date published: 2024-06-10
album: Dus Dans
album: Terug Naar Toen
album: Mag Ik Dan Bij Jou
album: Anno Ons
album: ANNO ONS
album: Lotje (Remixes)
track: Lotje
track: Op Zoek Naar Jou
track: Zilver Randje
track: Hartslag
track: Domineren De Nacht
track: Nostalgie
track: Dus Dans
track: Rammend
track: Terug Naar Toen
track: Mag Ik Dan Bij Jou
track: Ons

Dus Dans
type: MusicAlbum
date published: 2024-06-26
track: Dus Dans
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187741
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Dus Dans
    type: MusicAlbum
    date published: 2024-06-26
  isrc code: NL1X12400006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T10:45:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956857
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/07VgIquOgNQP9KpaZT5nu7.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/07VgIquOgNQP9KpaZT5nu7
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"07VgIquOgNQP9KpaZT5nu7","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/07VgIquOgNQP9KpaZT5nu7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/07VgIquOgNQP9KpaZT5nu7.
    date published: 2026-07-06T01:26:17Z
    text: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"07VgIquOgNQP9KpaZT5nu7","type":"track"}

Terug Naar Toen
type: MusicAlbum
date published: 2024-07-10
track: Terug Naar Toen
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163500
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Terug Naar Toen
    type: MusicAlbum
    date published: 2024-07-10

Mag Ik Dan Bij Jou
type: MusicAlbum
date published: 2024-07-17
track: Mag Ik Dan Bij Jou
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Mag Ik Dan Bij Jou
    type: MusicAlbum
    date published: 2024-07-17
  isrc code: NL1X12400008
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T19:58:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956776
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6mI83BAV8hVSnUUv4JOl08.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6mI83BAV8hVSnUUv4JOl08
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:59:37Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"6mI83BAV8hVSnUUv4JOl08","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6mI83BAV8hVSnUUv4JOl08.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6mI83BAV8hVSnUUv4JOl08.
    date published: 2026-07-05T10:59:37Z
    text: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"6mI83BAV8hVSnUUv4JOl08","type":"track"}

Anno Ons
type: MusicAlbum
date published: 2024-07-18
track: Lotje
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166829
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL9AK2400005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:08:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6v5Bb9V1bRModUZt8XEhJG.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6v5Bb9V1bRModUZt8XEhJG
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6v5Bb9V1bRModUZt8XEhJG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6v5Bb9V1bRModUZt8XEhJG.
    date published: 2026-06-13T13:32:09Z
track: Op Zoek Naar Jou
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144761
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T13:18:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6fij5WrKSzodPKmStKO6nY.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fij5WrKSzodPKmStKO6nY
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"6fij5WrKSzodPKmStKO6nY","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6fij5WrKSzodPKmStKO6nY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fij5WrKSzodPKmStKO6nY.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"6fij5WrKSzodPKmStKO6nY","type":"track"}
track: Zilver Randje
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200571
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: TCAIR2419985
track: Hartslag
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144023
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T11:26:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0I3qywNTleAQ3c9HvwU5Wq.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0I3qywNTleAQ3c9HvwU5Wq
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0I3qywNTleAQ3c9HvwU5Wq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0I3qywNTleAQ3c9HvwU5Wq.
    date published: 2026-07-08T03:20:19Z
track: Domineren De Nacht
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T02:38:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6YJjC1arfVin8SOnCOVrnC.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6YJjC1arfVin8SOnCOVrnC
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"6YJjC1arfVin8SOnCOVrnC","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6YJjC1arfVin8SOnCOVrnC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6YJjC1arfVin8SOnCOVrnC.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"6YJjC1arfVin8SOnCOVrnC","type":"track"}
track: Nostalgie
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127968
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Anno Ons
  isrc code: NL1X12400005
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Ons
track: Dus Dans
track: Rammend
track: Terug Naar Toen
track: Mag Ik Dan Bij Jou

Lustrum U.V.S.V./N.V.V.S.U.
type: MusicGroup

Anno Ons
type: MusicAlbum
date published: 2024-07-18

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-10T06:18:19+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953536

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953536

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/5hcIRPF9BTyjUYeFOGp67n.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hcIRPF9BTyjUYeFOGp67n

OTSTimestamp
type: PropertyValue
value: 2026-06-13T17:25:41Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5hcIRPF9BTyjUYeFOGp67n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hcIRPF9BTyjUYeFOGp67n.
date published: 2026-06-13T17:25:41Z

Ons
type: MusicRecording
duration: PT2M49S
duration ms: 169285
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: TCAIL2456235
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T04:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6U0kBl0C36YfufXpNGDq8R.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U0kBl0C36YfufXpNGDq8R
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6U0kBl0C36YfufXpNGDq8R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U0kBl0C36YfufXpNGDq8R.
  date published: 2026-07-02T03:55:08Z

Dus Dans
type: MusicRecording
duration: PT3M7S
duration ms: 187741
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T10:45:33+00:00

Rammend
type: MusicRecording
duration: PT2M16S
duration ms: 136000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:27:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1xhBcofkvG3AI1kxOwiXRe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1xhBcofkvG3AI1kxOwiXRe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1xhBcofkvG3AI1kxOwiXRe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1xhBcofkvG3AI1kxOwiXRe.
  date published: 2026-07-08T03:20:19Z

Terug Naar Toen
type: MusicRecording
duration: PT2M43S
duration ms: 163500
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:36:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2jWDb3lqCkC706KDp4htza.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jWDb3lqCkC706KDp4htza
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"2jWDb3lqCkC706KDp4htza","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jWDb3lqCkC706KDp4htza.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jWDb3lqCkC706KDp4htza.
  date published: 2026-07-08T03:20:19Z
  text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"2jWDb3lqCkC706KDp4htza","type":"track"}

Mag Ik Dan Bij Jou
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T19:58:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/48frhQQFEo52mhX45Q4MMq.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48frhQQFEo52mhX45Q4MMq
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"48frhQQFEo52mhX45Q4MMq","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/48frhQQFEo52mhX45Q4MMq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48frhQQFEo52mhX45Q4MMq.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"48frhQQFEo52mhX45Q4MMq","type":"track"}

ANNO ONS
type: MusicAlbum
date published: 2024-07-18
track: Lotje
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166829
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL9AK2400005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:08:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/450bePQl5Ogl5oyFGzwIrV.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/450bePQl5Ogl5oyFGzwIrV
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/450bePQl5Ogl5oyFGzwIrV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/450bePQl5Ogl5oyFGzwIrV.
    date published: 2026-06-13T12:47:07Z
track: Op Zoek Naar Jou
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144761
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T13:18:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/17XKPJOu3Cj9j6wAy1VoJN.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17XKPJOu3Cj9j6wAy1VoJN
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"17XKPJOu3Cj9j6wAy1VoJN","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/17XKPJOu3Cj9j6wAy1VoJN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17XKPJOu3Cj9j6wAy1VoJN.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"17XKPJOu3Cj9j6wAy1VoJN","type":"track"}
track: Zilver Randje
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200571
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T02:24:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4LWNFRZcUbBwcGYC6YibXs.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4LWNFRZcUbBwcGYC6YibXs
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"4LWNFRZcUbBwcGYC6YibXs","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4LWNFRZcUbBwcGYC6YibXs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4LWNFRZcUbBwcGYC6YibXs.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"4LWNFRZcUbBwcGYC6YibXs","type":"track"}
track: Hartslag
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144023
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T11:26:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953515
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3DLmdX6MdiwlCmiTTQsgT7.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DLmdX6MdiwlCmiTTQsgT7
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DLmdX6MdiwlCmiTTQsgT7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DLmdX6MdiwlCmiTTQsgT7.
    date published: 2026-06-13T12:53:06Z
track: Domineren De Nacht
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Nostalgie
track: Dus Dans
track: Rammend
track: Terug Naar Toen
track: Mag Ik Dan Bij Jou

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T02:38:09+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953536

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953536

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/5i9H0GieTlKdjEbgCiNsCr.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5i9H0GieTlKdjEbgCiNsCr

OTSTimestamp
type: PropertyValue
value: 2026-06-13T17:25:41Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"5i9H0GieTlKdjEbgCiNsCr","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5i9H0GieTlKdjEbgCiNsCr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5i9H0GieTlKdjEbgCiNsCr.
date published: 2026-06-13T17:25:41Z
text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"5i9H0GieTlKdjEbgCiNsCr","type":"track"}

Nostalgie
type: MusicRecording
duration: PT2M7S
duration ms: 127968
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:18:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1NU2afIREz3jvBnAIHE7MM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NU2afIREz3jvBnAIHE7MM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NU2afIREz3jvBnAIHE7MM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NU2afIREz3jvBnAIHE7MM.
  date published: 2026-07-02T05:09:12Z

Dus Dans
type: MusicRecording
duration: PT3M7S
duration ms: 187741
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T10:45:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0VOdUYcpu5YQHvaoENiMMW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VOdUYcpu5YQHvaoENiMMW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"0VOdUYcpu5YQHvaoENiMMW","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0VOdUYcpu5YQHvaoENiMMW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VOdUYcpu5YQHvaoENiMMW.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"0VOdUYcpu5YQHvaoENiMMW","type":"track"}

Rammend
type: MusicRecording
duration: PT2M16S
duration ms: 136000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:27:24+00:00

Terug Naar Toen
type: MusicRecording
duration: PT2M43S
duration ms: 163500
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:36:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5EpOaUHPejAXRSUu7ArJ2L.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EpOaUHPejAXRSUu7ArJ2L
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"5EpOaUHPejAXRSUu7ArJ2L","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5EpOaUHPejAXRSUu7ArJ2L.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EpOaUHPejAXRSUu7ArJ2L.
  date published: 2026-07-08T03:20:19Z
  text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"5EpOaUHPejAXRSUu7ArJ2L","type":"track"}

Mag Ik Dan Bij Jou
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18

ANNO ONS
type: MusicAlbum
date published: 2024-07-18
track: Lotje
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167804
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL9AK2400005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:08:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/289NOT3DzIaOL5usnMEU4V.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/289NOT3DzIaOL5usnMEU4V
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/289NOT3DzIaOL5usnMEU4V.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/289NOT3DzIaOL5usnMEU4V.
    date published: 2026-07-08T03:22:41Z
track: Op Zoek Naar Jou
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145312
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T13:18:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/42Z1xSYU3naHsv2UmprqUT.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42Z1xSYU3naHsv2UmprqUT
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"42Z1xSYU3naHsv2UmprqUT","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/42Z1xSYU3naHsv2UmprqUT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42Z1xSYU3naHsv2UmprqUT.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"42Z1xSYU3naHsv2UmprqUT","type":"track"}
track: Zilver Randje
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200625
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T02:24:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3h1gZJZ7b5sAeeanMfhian.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3h1gZJZ7b5sAeeanMfhian
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"3h1gZJZ7b5sAeeanMfhian","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3h1gZJZ7b5sAeeanMfhian.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3h1gZJZ7b5sAeeanMfhian.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"3h1gZJZ7b5sAeeanMfhian","type":"track"}
track: Hartslag
  type: MusicRecording
  duration: PT2M23S
  duration ms: 143906
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T11:26:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4DlA69MIdXbH3kwXEglxKV.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4DlA69MIdXbH3kwXEglxKV
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4DlA69MIdXbH3kwXEglxKV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4DlA69MIdXbH3kwXEglxKV.
    date published: 2026-06-13T17:25:41Z
track: Domineren In De Nacht
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Nostalgie
track: Ons
track: Dus Dans
track: Rammend
track: Terug Naar Toen
track: Mag Ik Dan Bij Jou

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T02:38:09+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953536

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953536

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/0y5fqE6p7GlFCgg48hc8OL.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0y5fqE6p7GlFCgg48hc8OL

OTSTimestamp
type: PropertyValue
value: 2026-06-13T17:25:41Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren In De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"0y5fqE6p7GlFCgg48hc8OL","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0y5fqE6p7GlFCgg48hc8OL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0y5fqE6p7GlFCgg48hc8OL.
date published: 2026-06-13T17:25:41Z
text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren In De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"0y5fqE6p7GlFCgg48hc8OL","type":"track"}

Nostalgie
type: MusicRecording
duration: PT2M7S
duration ms: 127968
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:18:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3OECgKN2O8BP0LZBFEPIPK.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3OECgKN2O8BP0LZBFEPIPK
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3OECgKN2O8BP0LZBFEPIPK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3OECgKN2O8BP0LZBFEPIPK.
  date published: 2026-07-02T03:55:08Z

Ons
type: MusicRecording
duration: PT2M49S
duration ms: 169285
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: TCAIL2456235
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T04:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5XaBeQ85s4cU5sYu4Dm28H.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5XaBeQ85s4cU5sYu4Dm28H
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5XaBeQ85s4cU5sYu4Dm28H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5XaBeQ85s4cU5sYu4Dm28H.
  date published: 2026-07-02T03:30:09Z

Dus Dans
type: MusicRecording
duration: PT3M7S
duration ms: 187750
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T10:45:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5Dn0110E0Zr743yk5ONkkl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dn0110E0Zr743yk5ONkkl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"5Dn0110E0Zr743yk5ONkkl","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Dn0110E0Zr743yk5ONkkl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dn0110E0Zr743yk5ONkkl.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"5Dn0110E0Zr743yk5ONkkl","type":"track"}

Rammend
type: MusicRecording
duration: PT2M16S
duration ms: 136000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:27:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7CwIrT6aNvbft8Edw9b5hl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CwIrT6aNvbft8Edw9b5hl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7CwIrT6aNvbft8Edw9b5hl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CwIrT6aNvbft8Edw9b5hl.
  date published: 2026-07-02T03:55:08Z

Terug Naar Toen
type: MusicRecording
duration: PT2M43S
duration ms: 163500
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:36:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1GyM4e9cMWOVHYWvrEgbdJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GyM4e9cMWOVHYWvrEgbdJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"1GyM4e9cMWOVHYWvrEgbdJ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1GyM4e9cMWOVHYWvrEgbdJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GyM4e9cMWOVHYWvrEgbdJ.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"1GyM4e9cMWOVHYWvrEgbdJ","type":"track"}

Mag Ik Dan Bij Jou
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T19:58:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4C7mK69Ahb940PEbwxoJwa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4C7mK69Ahb940PEbwxoJwa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"4C7mK69Ahb940PEbwxoJwa","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4C7mK69Ahb940PEbwxoJwa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4C7mK69Ahb940PEbwxoJwa.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x423ccce46e91c6cde4b86907b1345bc61a8387f1702cbb872be9563cb8194f97","isrc":"NL1X12400008","name":"Mag Ik Dan Bij Jou","registered_at":"2026-06-18T19:58:20Z","spotify_id":"4C7mK69Ahb940PEbwxoJwa","type":"track"}

ANNO ONS
type: MusicAlbum
date published: 2024-07-18
track: Lotje
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167804
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
track: Op Zoek Naar Jou
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145312
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
track: Zilver Randje
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200625
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T02:24:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956420
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956420
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1MJDkBRUr5yl39bjlcDv7C.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1MJDkBRUr5yl39bjlcDv7C
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T00:42:11Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"1MJDkBRUr5yl39bjlcDv7C","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1MJDkBRUr5yl39bjlcDv7C.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1MJDkBRUr5yl39bjlcDv7C.
    date published: 2026-07-03T00:42:11Z
    text: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"1MJDkBRUr5yl39bjlcDv7C","type":"track"}
track: Hartslag
  type: MusicRecording
  duration: PT2M23S
  duration ms: 143906
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
track: Domineren In De Nacht
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
track: Nostalgie
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127968
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T06:18:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956742
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956742
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3u2AEQLH5OyMRs76tfRDum.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3u2AEQLH5OyMRs76tfRDum
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T05:07:15Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3u2AEQLH5OyMRs76tfRDum.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3u2AEQLH5OyMRs76tfRDum.
    date published: 2026-07-05T05:07:15Z
track: Dus Dans
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187750
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T10:45:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956560
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956560
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1Hv6Et4Dv3RSO58jbb8xIp.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Hv6Et4Dv3RSO58jbb8xIp
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T23:28:02Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"1Hv6Et4Dv3RSO58jbb8xIp","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Hv6Et4Dv3RSO58jbb8xIp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Hv6Et4Dv3RSO58jbb8xIp.
    date published: 2026-07-03T23:28:02Z
    text: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"1Hv6Et4Dv3RSO58jbb8xIp","type":"track"}
track: Rammend
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136000
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
track: Terug Naar Toen
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163500
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: ANNO ONS
    type: MusicAlbum
    date published: 2024-07-18
  isrc code: NL1X12400007
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Mag Ik Dan Bij Jou

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-25T06:36:39+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956894

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956894

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/0uliVaaD3DTqMF8I6XNDg6.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0uliVaaD3DTqMF8I6XNDg6

OTSTimestamp
type: PropertyValue
value: 2026-07-06T07:53:57Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"0uliVaaD3DTqMF8I6XNDg6","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0uliVaaD3DTqMF8I6XNDg6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0uliVaaD3DTqMF8I6XNDg6.
date published: 2026-07-06T07:53:57Z
text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"0uliVaaD3DTqMF8I6XNDg6","type":"track"}

Mag Ik Dan Bij Jou
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18

Lotje (Remixes)
type: MusicAlbum
date published: 2025-04-06
track: Lotje - LA$$A Remix
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145136
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje (Remixes)
    type: MusicAlbum
    date published: 2025-04-06
track: Lotje - Friends With Benefits Remix
  type: MusicRecording
  duration: PT2M19S
  duration ms: 139862
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje (Remixes)
    type: MusicAlbum
    date published: 2025-04-06
  isrc code: NLUM72500652

Lotje (Remixes)
type: MusicAlbum
date published: 2025-04-06
track: Lotje - LA$$A Remix
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145136
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje (Remixes)
    type: MusicAlbum
    date published: 2025-04-06
track: Lotje - Friends With Benefits Remix
  type: MusicRecording
  duration: PT2M19S
  duration ms: 139862
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje (Remixes)
    type: MusicAlbum
    date published: 2025-04-06

Lotje
type: MusicAlbum
date published: 2025-04-08
track: Lotje
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167804
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje
    type: MusicAlbum
    date published: 2025-04-08
track: Lotje - Kroegenversie
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167804
  explicit: false
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje
    type: MusicAlbum
    date published: 2025-04-08
track: Lotje - Acapella Versie
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167804
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje
    type: MusicAlbum
    date published: 2025-04-08
track: Lotje - Gesjeesde Versie
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152549
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje
    type: MusicAlbum
    date published: 2025-04-08
track: Lotje - Slowed Down Versie
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186449
  explicit: true
  by artist: Lustrum U.V.S.V./N.V.V.S.U.
  in album: Lotje
    type: MusicAlbum
    date published: 2025-04-08

Lotje
type: MusicRecording
duration: PT2M46S
duration ms: 166829
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Jopke van Dobbenburgh
by artist: Roeland Beelen
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL9AK2400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:08:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/450bePQl5Ogl5oyFGzwIrV.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/450bePQl5Ogl5oyFGzwIrV
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/450bePQl5Ogl5oyFGzwIrV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/450bePQl5Ogl5oyFGzwIrV.
  date published: 2026-06-13T12:47:07Z

Op Zoek Naar Jou
type: MusicRecording
duration: PT2M24S
duration ms: 144761
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: An Ming Hauptmeijer
by artist: Cas Moerdijk
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:18:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/17XKPJOu3Cj9j6wAy1VoJN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17XKPJOu3Cj9j6wAy1VoJN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"17XKPJOu3Cj9j6wAy1VoJN","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/17XKPJOu3Cj9j6wAy1VoJN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17XKPJOu3Cj9j6wAy1VoJN.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"17XKPJOu3Cj9j6wAy1VoJN","type":"track"}

Zilver Randje
type: MusicRecording
duration: PT3M20S
duration ms: 200571
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Lolo Hefting
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T02:24:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4LWNFRZcUbBwcGYC6YibXs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4LWNFRZcUbBwcGYC6YibXs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"4LWNFRZcUbBwcGYC6YibXs","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4LWNFRZcUbBwcGYC6YibXs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4LWNFRZcUbBwcGYC6YibXs.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd90137292d6daced31053fd2ee22b7feba0bfe7ec7a1535e038be19735c4dfbb","isrc":"NL1X12400002","name":"Zilver Randje","registered_at":"2026-06-11T02:24:20Z","spotify_id":"4LWNFRZcUbBwcGYC6YibXs","type":"track"}

Hartslag
type: MusicRecording
duration: PT2M24S
duration ms: 144023
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Roos Voermans
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T11:26:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3DLmdX6MdiwlCmiTTQsgT7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DLmdX6MdiwlCmiTTQsgT7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DLmdX6MdiwlCmiTTQsgT7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DLmdX6MdiwlCmiTTQsgT7.
  date published: 2026-06-13T12:53:06Z

Domineren De Nacht
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Guusje van den Brink
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:38:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5i9H0GieTlKdjEbgCiNsCr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5i9H0GieTlKdjEbgCiNsCr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"5i9H0GieTlKdjEbgCiNsCr","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5i9H0GieTlKdjEbgCiNsCr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5i9H0GieTlKdjEbgCiNsCr.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"5i9H0GieTlKdjEbgCiNsCr","type":"track"}

Nostalgie
type: MusicRecording
duration: PT2M7S
duration ms: 127968
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Barbara Peters
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:18:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1NU2afIREz3jvBnAIHE7MM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NU2afIREz3jvBnAIHE7MM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NU2afIREz3jvBnAIHE7MM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NU2afIREz3jvBnAIHE7MM.
  date published: 2026-07-02T05:09:12Z

Dus Dans
type: MusicRecording
duration: PT3M7S
duration ms: 187741
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Tos
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T10:45:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0VOdUYcpu5YQHvaoENiMMW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VOdUYcpu5YQHvaoENiMMW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"0VOdUYcpu5YQHvaoENiMMW","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0VOdUYcpu5YQHvaoENiMMW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VOdUYcpu5YQHvaoENiMMW.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x78c651ba86b827db45d9c23d57a5e8acbaacdf73ad3f1b0c58fcd75ac6a363bf","isrc":"NL1X12400006","name":"Dus Dans","registered_at":"2026-06-18T10:45:33Z","spotify_id":"0VOdUYcpu5YQHvaoENiMMW","type":"track"}

Rammend
type: MusicRecording
duration: PT2M16S
duration ms: 136000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Kiet Bronkhorst
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:27:24+00:00

Terug Naar Toen
type: MusicRecording
duration: PT2M43S
duration ms: 163500
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Wietske Overdijk
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:36:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5EpOaUHPejAXRSUu7ArJ2L.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EpOaUHPejAXRSUu7ArJ2L
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"5EpOaUHPejAXRSUu7ArJ2L","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5EpOaUHPejAXRSUu7ArJ2L.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EpOaUHPejAXRSUu7ArJ2L.
  date published: 2026-07-08T03:20:19Z
  text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"5EpOaUHPejAXRSUu7ArJ2L","type":"track"}

Mag Ik Dan Bij Jou
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Maxime Tiems
by artist: Claudia De Breij
in album: ANNO ONS
  type: MusicAlbum
  date published: 2024-07-18

Lotje
type: MusicRecording
duration: PT2M46S
duration ms: 166829
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Jopke van Dobbenburgh
by artist: Roeland Beelen
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL9AK2400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:08:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6v5Bb9V1bRModUZt8XEhJG.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6v5Bb9V1bRModUZt8XEhJG
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x396dafd45873fb95b68a38a0dacff6a049803f98bf0e17e1666b61e532c93250. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6v5Bb9V1bRModUZt8XEhJG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6v5Bb9V1bRModUZt8XEhJG.
  date published: 2026-06-13T13:32:09Z

Op Zoek Naar Jou
type: MusicRecording
duration: PT2M24S
duration ms: 144761
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: An Ming Hauptmeijer
by artist: Cas Moerdijk
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:18:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6fij5WrKSzodPKmStKO6nY.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fij5WrKSzodPKmStKO6nY
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"6fij5WrKSzodPKmStKO6nY","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6fij5WrKSzodPKmStKO6nY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fij5WrKSzodPKmStKO6nY.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x95389cf4775be81d4371402cb372a3845078b12899fff916efcef76dd9460243","isrc":"NL1X12400001","name":"Op Zoek Naar Jou","registered_at":"2026-06-04T13:18:48Z","spotify_id":"6fij5WrKSzodPKmStKO6nY","type":"track"}

Zilver Randje
type: MusicRecording
duration: PT3M20S
duration ms: 200571
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Lolo Hefting
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: TCAIR2419985

Hartslag
type: MusicRecording
duration: PT2M24S
duration ms: 144023
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Roos Voermans
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T11:26:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0I3qywNTleAQ3c9HvwU5Wq.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0I3qywNTleAQ3c9HvwU5Wq
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x31ec5d10dc95741bbc5bd8b637643a37ca1e20b879e5497a8078bdd3b7fd0554. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0I3qywNTleAQ3c9HvwU5Wq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0I3qywNTleAQ3c9HvwU5Wq.
  date published: 2026-07-08T03:20:19Z

Domineren De Nacht
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Guusje van den Brink
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:38:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6YJjC1arfVin8SOnCOVrnC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6YJjC1arfVin8SOnCOVrnC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"6YJjC1arfVin8SOnCOVrnC","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6YJjC1arfVin8SOnCOVrnC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6YJjC1arfVin8SOnCOVrnC.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x87d4e17218924fa10a6cab133432e976699fde6c5a9e0aa12d3b57faf2e06a80","isrc":"NL1X12400004","name":"Domineren De Nacht","registered_at":"2026-06-07T02:38:09Z","spotify_id":"6YJjC1arfVin8SOnCOVrnC","type":"track"}

Nostalgie
type: MusicRecording
duration: PT2M7S
duration ms: 127968
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Barbara Peters
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:18:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5hcIRPF9BTyjUYeFOGp67n.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hcIRPF9BTyjUYeFOGp67n
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0d9e0b7d76c40ef5d7203638ad91e330a1a59cdbd1b2694eb153bf37d421c3ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5hcIRPF9BTyjUYeFOGp67n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hcIRPF9BTyjUYeFOGp67n.
  date published: 2026-06-13T17:25:41Z

Ons
type: MusicRecording
duration: PT2M49S
duration ms: 169285
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: LØU
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: TCAIL2456235
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T04:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6U0kBl0C36YfufXpNGDq8R.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U0kBl0C36YfufXpNGDq8R
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x79e480a65d40f66bd2b29a99d572cef18743b1a4bf8ba01f3cfd3b6f044a1780. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6U0kBl0C36YfufXpNGDq8R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U0kBl0C36YfufXpNGDq8R.
  date published: 2026-07-02T03:55:08Z

Dus Dans
type: MusicRecording
duration: PT3M7S
duration ms: 187741
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Tos
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T10:45:33+00:00

Rammend
type: MusicRecording
duration: PT2M16S
duration ms: 136000
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Kiet Bronkhorst
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:27:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1xhBcofkvG3AI1kxOwiXRe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1xhBcofkvG3AI1kxOwiXRe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe49066bf9222fb22711c8ee935e2d51502e10fe5f7951e2f0d7fdb27f076f903. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1xhBcofkvG3AI1kxOwiXRe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1xhBcofkvG3AI1kxOwiXRe.
  date published: 2026-07-08T03:20:19Z

Terug Naar Toen
type: MusicRecording
duration: PT2M43S
duration ms: 163500
explicit: false
by artist: Lustrum U.V.S.V./N.V.V.S.U.
by artist: ANNO ONS
by artist: Wietske Overdijk
in album: Anno Ons
  type: MusicAlbum
  date published: 2024-07-18
isrc code: NL1X12400007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:36:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2jWDb3lqCkC706KDp4htza.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jWDb3lqCkC706KDp4htza
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"2jWDb3lqCkC706KDp4htza","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jWDb3lqCkC706KDp4htza.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jWDb3lqCkC706KDp4htza.
  date published: 2026-07-08T03:20:19Z
  text: {"copyright_id":"0xb15d80348464dc35293ed4ca03a6c504541a12f9584704be8ac95bfb907c16b1","isrc":"NL1X12400007","name":"Terug Naar Toen","registered_at":"2026-06-25T06:36:39Z","spotify_id":"2jWDb3lqCkC706KDp4htza","type":"track"}