Nieuw Vocaal Amsterdam
type: MusicGroup
popularity: 6
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d5d061826a9e0885a5458189ada8881e1db090f43b7471c464a3a7735accbbc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d9218a0-bde7-4f48-a149-4f276a455983.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d9218a0-bde7-4f48-a149-4f276a455983.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d9218a0-bde7-4f48-a149-4f276a455983
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d5d061826a9e0885a5458189ada8881e1db090f43b7471c464a3a7735accbbc","name":"Nieuw Vocaal Amsterdam","registered_at":"2026-06-17T09:21:54Z","symbol":"NIM1351097","token_address":"0xd8719fa56a147f74b6b7cdb7e9bd1f95e0029a5f","type":"artist","uuid":"7d9218a0-bde7-4f48-a149-4f276a455983"}
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 0x2d5d061826a9e0885a5458189ada8881e1db090f43b7471c464a3a7735accbbc. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d9218a0-bde7-4f48-a149-4f276a455983.json and https://artists.proofprofile.net/proofs/artist/7d9218a0-bde7-4f48-a149-4f276a455983.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x2d5d061826a9e0885a5458189ada8881e1db090f43b7471c464a3a7735accbbc","name":"Nieuw Vocaal Amsterdam","registered_at":"2026-06-17T09:21:54Z","symbol":"NIM1351097","token_address":"0xd8719fa56a147f74b6b7cdb7e9bd1f95e0029a5f","type":"artist","uuid":"7d9218a0-bde7-4f48-a149-4f276a455983"}
album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
  track: Wij komen tezamen
    type: MusicRecording
    duration: PT1M5S
    duration ms: 65800
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700001
  track: Veni, veni Emmanuel
    type: MusicRecording
    duration: PT1M20S
    duration ms: 80880
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
  track: Kind’ren zwijgt zo moogdi horen
    type: MusicRecording
    duration: PT1M3S
    duration ms: 63106
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700003
  track: Valasus
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131760
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ana Balestra
    by artist: Pia Pleijsier
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700004
  track: O doe die Rose van Jericho
    type: MusicRecording
    duration: PT1M9S
    duration ms: 69813
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ana Balestra
    by artist: Pia Pleijsier
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700005
  track: Op enen kerstnacht
    type: MusicRecording
    duration: PT1M10S
    duration ms: 70586
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700006
  track: Sinfonia (uit Weihnachtsoratorium, BWV 248 van J.S. Bach)
    type: MusicRecording
    duration: PT5M30S
    duration ms: 330826
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T15:07:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf9ecd3ae9e14371766e26c8941dde17eccfb292987e6cdc779c9508f8580e3bc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ecd3ae9e14371766e26c8941dde17eccfb292987e6cdc779c9508f8580e3bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700007.
      date published: 2026-07-08T03:20:19Z
  track: Maria die zoude naar Bethlehem gaan
    type: MusicRecording
    duration: PT1M22S
    duration ms: 82440
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ana Balestra
    by artist: Giulian van Nierop
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700008
  track: Sint Jozef ging al treuren
    type: MusicRecording
    duration: PT1M14S
    duration ms: 74800
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Giulian van Nierop
    by artist: Siri Brenner
    by artist: Ton Koopman
    in album: Kerstspel
      type: MusicAlbum
      date published: 2017-11-24
    isrc code: NLK171700009
  track: Nu zijt wellekome
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184960
    explicit: false
    by artist: Anonymous
    by artist: Amsterdam Baroque Orchestra
    by artist: Nieuw Vocaal Amsterdam
    by artist: Ton Koopman
    in album: Kerstspel
    isrc code: NLK171700010
  track: Laet ons met verheughen springhen
  track: In ‘t stalleke van Bethlehem
  track: Gloria in excelsis Deo
  track: Hoe leit dit kindeke
  track: Ik kniel aan uwe kribbe neer
  track: Er is een roos ontsprongen
  track: O herders, laat uw bokken en schapen
  track: Er is een kindeke geboren op aard
  track: In dulci jubilo
  track: ‘t Is geboren het Godd’lijk kind
  track: Klein, klein Jezuke
  track: Kling klokje klingelingeling
  track: Stille nacht
  track: Midden in de winternacht
  track: A la berline postiljon!
  track: Kerstverhaal verteld door Dieuwertje Blok
track: Nu zijt wellekome
track: Gloria in excelsis Deo
track: Wij komen tezamen
track: Veni, veni Emmanuel
track: Kind’ren zwijgt zo moogdi horen
track: Valasus
track: O doe die Rose van Jericho
track: Op enen kerstnacht
track: Maria die zoude naar Bethlehem gaan
track: Hoe leit dit kindeke
track: O herders, laat uw bokken en schapen
track: Er is een kindeke geboren op aard
track: Midden in de winternacht
track: A la berline postiljon!
track: Sinfonia (uit Weihnachtsoratorium, BWV 248 van J.S. Bach)
track: Sint Jozef ging al treuren
track: Laet ons met verheughen springhen
track: In ‘t stalleke van Bethlehem
track: Ik kniel aan uwe kribbe neer
track: Er is een roos ontsprongen

Amsterdam Baroque Orchestra
type: MusicGroup

Nieuw Vocaal Amsterdam
type: MusicGroup

Ton Koopman
type: MusicGroup

Kerstspel
type: MusicAlbum
date published: 2017-11-24

Laet ons met verheughen springhen
type: MusicRecording
duration: PT2M7S
duration ms: 127880
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700011

In ‘t stalleke van Bethlehem
type: MusicRecording
duration: PT1M21S
duration ms: 81200
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Gloria in excelsis Deo
type: MusicRecording
duration: PT2M2S
duration ms: 122440
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:25:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ebcce6ca1d95a3d4a0a3ca622a4ab77fdd903c18a426a17440eee1fdc27929f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebcce6ca1d95a3d4a0a3ca622a4ab77fdd903c18a426a17440eee1fdc27929f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700013.
  date published: 2026-07-08T03:53:27Z

Hoe leit dit kindeke
type: MusicRecording
duration: PT2M10S
duration ms: 130853
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Dalia Kulek
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700014

Ik kniel aan uwe kribbe neer
type: MusicRecording
duration: PT2M7S
duration ms: 127173
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ana Balestra
by artist: Giulian van Nierop
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Er is een roos ontsprongen
type: MusicRecording
duration: PT2M42S
duration ms: 162933
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700016

O herders, laat uw bokken en schapen
type: MusicRecording
duration: PT3M45S
duration ms: 225186
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:18:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bb6dcdcc0b421b9bad76facb034b99a47bda355fb009bc6bc8faa5fd1fae9f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6dcdcc0b421b9bad76facb034b99a47bda355fb009bc6bc8faa5fd1fae9f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700017.
  date published: 2026-07-08T03:53:27Z

Er is een kindeke geboren op aard
type: MusicRecording
duration: PT1M42S
duration ms: 102986
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Pieter de Villiers
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:02:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5136dcd861475fbb8583c902215ec5d4646fc833b6d5d50c0da0c2074d55191d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700018
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5136dcd861475fbb8583c902215ec5d4646fc833b6d5d50c0da0c2074d55191d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700018.
  date published: 2026-07-08T03:53:27Z

In dulci jubilo
type: MusicRecording
duration: PT2M58S
duration ms: 178573
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

‘t Is geboren het Godd’lijk kind
type: MusicRecording
duration: PT1M19S
duration ms: 79200
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700020

Klein, klein Jezuke
type: MusicRecording
duration: PT2M0S
duration ms: 120346
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ripley Looye
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Kling klokje klingelingeling
type: MusicRecording
duration: PT2M21S
duration ms: 141920
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700022

Stille nacht
type: MusicRecording
duration: PT2M51S
duration ms: 171666
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Midden in de winternacht
type: MusicRecording
duration: PT1M40S
duration ms: 100600
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:16:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4366001f8b0c3ad02849dfef9ac93f49ee259d0f1d02c2e96c222b1520e75436
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4366001f8b0c3ad02849dfef9ac93f49ee259d0f1d02c2e96c222b1520e75436. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700024.
  date published: 2026-07-08T08:56:20Z

A la berline postiljon!
type: MusicRecording
duration: PT1M55S
duration ms: 115546
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700025

Kerstverhaal verteld door Dieuwertje Blok
type: MusicRecording
duration: PT6M48S
duration ms: 408080
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Dieuwertje Blok
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:32:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ce66ebc63aa8caab1303d77384dba836e24480971112eaef60370d532937a5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700026
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce66ebc63aa8caab1303d77384dba836e24480971112eaef60370d532937a5e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700026.
  date published: 2026-07-08T03:53:27Z

Nu zijt wellekome
type: MusicRecording
duration: PT3M4S
duration ms: 184960
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700010

Gloria in excelsis Deo
type: MusicRecording
duration: PT2M2S
duration ms: 122440
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:25:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ebcce6ca1d95a3d4a0a3ca622a4ab77fdd903c18a426a17440eee1fdc27929f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebcce6ca1d95a3d4a0a3ca622a4ab77fdd903c18a426a17440eee1fdc27929f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700013.
  date published: 2026-07-08T03:53:27Z

Wij komen tezamen
type: MusicRecording
duration: PT1M5S
duration ms: 65800
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700001

Veni, veni Emmanuel
type: MusicRecording
duration: PT1M20S
duration ms: 80880
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Kind’ren zwijgt zo moogdi horen
type: MusicRecording
duration: PT1M3S
duration ms: 63106
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700003

Valasus
type: MusicRecording
duration: PT2M11S
duration ms: 131760
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ana Balestra
by artist: Pia Pleijsier
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700004

O doe die Rose van Jericho
type: MusicRecording
duration: PT1M9S
duration ms: 69813
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ana Balestra
by artist: Pia Pleijsier
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700005

Op enen kerstnacht
type: MusicRecording
duration: PT1M10S
duration ms: 70586
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700006

Maria die zoude naar Bethlehem gaan
type: MusicRecording
duration: PT1M22S
duration ms: 82440
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ana Balestra
by artist: Giulian van Nierop
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700008

Hoe leit dit kindeke
type: MusicRecording
duration: PT2M10S
duration ms: 130853
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Dalia Kulek
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700014

O herders, laat uw bokken en schapen
type: MusicRecording
duration: PT3M45S
duration ms: 225186
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:18:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bb6dcdcc0b421b9bad76facb034b99a47bda355fb009bc6bc8faa5fd1fae9f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6dcdcc0b421b9bad76facb034b99a47bda355fb009bc6bc8faa5fd1fae9f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700017.
  date published: 2026-07-08T03:53:27Z

Er is een kindeke geboren op aard
type: MusicRecording
duration: PT1M42S
duration ms: 102986
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Pieter de Villiers
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:02:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5136dcd861475fbb8583c902215ec5d4646fc833b6d5d50c0da0c2074d55191d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700018
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5136dcd861475fbb8583c902215ec5d4646fc833b6d5d50c0da0c2074d55191d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700018.
  date published: 2026-07-08T03:53:27Z

Midden in de winternacht
type: MusicRecording
duration: PT1M40S
duration ms: 100600
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:16:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4366001f8b0c3ad02849dfef9ac93f49ee259d0f1d02c2e96c222b1520e75436
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4366001f8b0c3ad02849dfef9ac93f49ee259d0f1d02c2e96c222b1520e75436. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700024.
  date published: 2026-07-08T08:56:20Z

A la berline postiljon!
type: MusicRecording
duration: PT1M55S
duration ms: 115546
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700025

Sinfonia (uit Weihnachtsoratorium, BWV 248 van J.S. Bach)
type: MusicRecording
duration: PT5M30S
duration ms: 330826
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:07:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9ecd3ae9e14371766e26c8941dde17eccfb292987e6cdc779c9508f8580e3bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ecd3ae9e14371766e26c8941dde17eccfb292987e6cdc779c9508f8580e3bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK171700007.
  date published: 2026-07-08T03:20:19Z

Sint Jozef ging al treuren
type: MusicRecording
duration: PT1M14S
duration ms: 74800
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Giulian van Nierop
by artist: Siri Brenner
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700009

Laet ons met verheughen springhen
type: MusicRecording
duration: PT2M7S
duration ms: 127880
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700011

In ‘t stalleke van Bethlehem
type: MusicRecording
duration: PT1M21S
duration ms: 81200
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Ik kniel aan uwe kribbe neer
type: MusicRecording
duration: PT2M7S
duration ms: 127173
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ana Balestra
by artist: Giulian van Nierop
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24

Er is een roos ontsprongen
type: MusicRecording
duration: PT2M42S
duration ms: 162933
explicit: false
by artist: Anonymous
by artist: Amsterdam Baroque Orchestra
by artist: Nieuw Vocaal Amsterdam
by artist: Ton Koopman
in album: Kerstspel
  type: MusicAlbum
  date published: 2017-11-24
isrc code: NLK171700016