Dolly en zien Tarrels
type: MusicGroup
genre: polka
popularity: 26
followers: 2459
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa2d86b6c558ab764701ea2d319344d6330552b59baf498f5833e668ef769200
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/302183ce-df01-4cc7-8bf3-1f9603be9f46.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/302183ce-df01-4cc7-8bf3-1f9603be9f46.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/302183ce-df01-4cc7-8bf3-1f9603be9f46
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2d86b6c558ab764701ea2d319344d6330552b59baf498f5833e668ef769200. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/302183ce-df01-4cc7-8bf3-1f9603be9f46.json and https://artists.proofprofile.net/proofs/artist/302183ce-df01-4cc7-8bf3-1f9603be9f46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xfa2d86b6c558ab764701ea2d319344d6330552b59baf498f5833e668ef769200","name":"Dolly en zien Tarrels","registered_at":"2026-06-11T15:22:19Z","symbol":"NIM0062029","token_address":"0x86d4ff9818daa479e7f522f68913802686d0f2f0","type":"artist","uuid":"302183ce-df01-4cc7-8bf3-1f9603be9f46"}
album: Jong En Onwies
  type: MusicAlbum
  date published: 2010
  track: De Trekker
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165106
    explicit: false
    by artist: Dolly en zien Tarrels
    in album: Jong En Onwies
      type: MusicAlbum
      date published: 2010
    genre: polka
    isrc code: NLW2R1710443
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T03:30:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a7bdc0e52706698db74913dd7fa859a49a2023a907046da9a0b2d582b7e88f6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958362
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958362
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1710443
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:32:48Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7bdc0e52706698db74913dd7fa859a49a2023a907046da9a0b2d582b7e88f6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1710443.
      date published: 2026-07-17T04:32:48Z
    audio: De Trekker
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.333
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.76
      additional property: Energy
        type: PropertyValue
        value: 0.648
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.131
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.128
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.801
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.129
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Rock 'n Roll Tot Dai-j Dr Bij Neervalt
    type: MusicRecording
    duration: PT1M41S
    duration ms: 101586
    explicit: false
    by artist: Dolly en zien Tarrels
    in album: Jong En Onwies
      type: MusicAlbum
      date published: 2010
    genre: polka
    isrc code: NLW2R1710444
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e7eff8531ae6d75c62ef235d21833a173caeafe9abfc032d6edda87c9749d13
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1710444
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T19:42:29Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7eff8531ae6d75c62ef235d21833a173caeafe9abfc032d6edda87c9749d13. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1710444.
      date published: 2026-07-16T19:42:29Z
    audio: Rock 'n Roll Tot Dai-j Dr Bij Neervalt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.966
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.559
      additional property: Energy
        type: PropertyValue
        value: 0.73
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.261
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.97
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Hits(Ig)
album: Lolly Van Dolly
album: Het Is Weer Tied Veur Autocross (Crossteam Kalm An)
album: Jong en Onwies
album: Lolly van Dolly
album: Hits(ig)
album: Val'n En Opstaon
album: Val`n en Opstaon
album: Val'n en Opstaon
album: Marietje
album: A.D.H.D
album: Weekend
album: Feessie in De Tent
album: Ik Kom Dr An
album: Ik kom dr an
album: Het is weer tied veur autocross (crossteam kalm an)
album: Feessie in de tent
album: ADHD
album: Oeleboele (Live)

Loudness (dB)
type: PropertyValue
value: -12.11

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Hits(Ig)
type: MusicAlbum
date published: 2011

Lolly Van Dolly
type: MusicAlbum
date published: 2012

Het Is Weer Tied Veur Autocross (Crossteam Kalm An)
type: MusicAlbum
date published: 2012

Jong en Onwies
type: MusicAlbum
date published: 2013-10-16

Jong en Onwies
type: MusicAlbum
date published: 2013-10-16

Lolly van Dolly
type: MusicAlbum
date published: 2013-10-16

Hits(ig)
type: MusicAlbum
date published: 2013-10-16

Lolly van Dolly
type: MusicAlbum
date published: 2013-10-16

Hits(ig)
type: MusicAlbum
date published: 2013-10-16

Val'n En Opstaon
type: MusicAlbum
date published: 2016
track: Groeten Uut Drenthe
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218306
  explicit: false
  by artist: Dolly en zien Tarrels
  in album: Val'n En Opstaon
    type: MusicAlbum
    date published: 2016
  genre: polka
  isrc code: NLN2K1600010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T09:19:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80d3681602989b61913b2625cc7843ed7a24ef274c0e5e7963496b880683b0de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN2K1600010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d3681602989b61913b2625cc7843ed7a24ef274c0e5e7963496b880683b0de. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLN2K1600010.
    date published: 2026-07-03T19:59:51Z
  audio: Groeten Uut Drenthe
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.999
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.425
    additional property: Energy
      type: PropertyValue
      value: 0.929
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.101
    additional property: Liveness
      type: PropertyValue
      value: 0.285
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.709
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.321
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Borsthaar
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163960
  explicit: false
  by artist: Dolly en zien Tarrels
  in album: Val'n En Opstaon
    type: MusicAlbum
    date published: 2016
  genre: polka
  isrc code: NLN2K1600011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T13:30:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8a87915f3e1075c019e43562cf7db20f3a827df825233b9faf9bac01dcb3fd36
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN2K1600011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T16:33:40Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a87915f3e1075c019e43562cf7db20f3a827df825233b9faf9bac01dcb3fd36. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN2K1600011.
    date published: 2026-07-19T16:33:40Z
  audio: Borsthaar
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 149.882
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.528
    additional property: Energy
      type: PropertyValue
      value: 0.828
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.08
    additional property: Liveness
      type: PropertyValue
      value: 0.736
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.876
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.379
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Val`n en Opstaon
type: MusicAlbum
date published: 2016-03-29

Val'n en Opstaon
type: MusicAlbum
date published: 2016-03-29

Marietje
type: MusicAlbum
date published: 2017
track: Marietje
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217000
  explicit: false
  by artist: Dolly en zien Tarrels
  in album: Marietje
    type: MusicAlbum
    date published: 2017
  genre: polka
  isrc code: NLW2R1822976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T01:26:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc67bf3f7c3a7951407a23e364b2edd53b6d400a307dc8d9f1dd8f21ade36bf0c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1822976
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67bf3f7c3a7951407a23e364b2edd53b6d400a307dc8d9f1dd8f21ade36bf0c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1822976.
    date published: 2026-07-03T08:56:35Z
  audio: Marietje
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.214
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.36
    additional property: Energy
      type: PropertyValue
      value: 0.925
    additional property: Speechiness
      type: PropertyValue
      value: 0.148
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.645
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.03
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

A.D.H.D
type: MusicAlbum
date published: 2017
track: A.D.H.D
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186500
  explicit: false
  by artist: Dolly en zien Tarrels
  in album: A.D.H.D
    type: MusicAlbum
    date published: 2017
  genre: polka
  isrc code: NLW2R1825216
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T00:27:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbf21cde9ddcf69b65cd0539fb62e8cf6122c27ef3011e92a6d650ff62393e3d7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW2R1825216
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-05T01:43:49Z
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Weekend
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Feessie in De Tent
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Ik Kom Dr An
type: MusicAlbum
date published: 2017

Ik kom dr an
type: MusicAlbum
date published: 2018-03-06

Ik kom dr an
type: MusicAlbum
date published: 2018-03-06

Het is weer tied veur autocross (crossteam kalm an)
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date published: 2018-04-09

Weekend
type: MusicAlbum
date published: 2018-04-09

Het is weer tied veur autocross (crossteam kalm an)
type: MusicAlbum
date published: 2018-04-09

Weekend
type: MusicAlbum
date published: 2018-04-09

Marietje
type: MusicAlbum
date published: 2018-05-08

Marietje
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date published: 2018-05-08

Feessie in de tent
type: MusicAlbum
date published: 2018-06-12

Feessie in de tent
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date published: 2018-06-12

ADHD
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date published: 2018-11-05

ADHD
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date published: 2018-11-05

Jong En Onwies
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date published: 2023-12-03

Ik Kom Dr An
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date published: 2023-12-03

Marietje
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date published: 2023-12-03

Feessie in De Tent
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date published: 2023-12-03

ADHD
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date published: 2023-12-03

Val'n En Opstaon
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date published: 2023-12-03

Hits(ig)
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Lolly Van Dolly
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date published: 2023-12-03

Weekend
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date published: 2023-12-03

Het Is Weer Tied Veur Autocross (Crossteam Kalm An)
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date published: 2023-12-03

Oeleboele (Live)
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date published: 2024-05-20