Marcel Kapteijn
type: MusicGroup
popularity: 32
followers: 1378
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe90f137d687d7e2bd41cf4351f2409ee77089a143025a3f3b31fb6aa6d4c5b71
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/1c4f12d7-53cb-4706-b992-3a5120c7c322.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c4f12d7-53cb-4706-b992-3a5120c7c322.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1c4f12d7-53cb-4706-b992-3a5120c7c322
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe90f137d687d7e2bd41cf4351f2409ee77089a143025a3f3b31fb6aa6d4c5b71","name":"Marcel Kapteijn","registered_at":"2026-06-11T13:42:25Z","symbol":"NIM0038107","token_address":"0x0fa4368a18d77ee9a81993b9da297c059548739a","type":"artist","uuid":"1c4f12d7-53cb-4706-b992-3a5120c7c322"}
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 0xe90f137d687d7e2bd41cf4351f2409ee77089a143025a3f3b31fb6aa6d4c5b71. 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/1c4f12d7-53cb-4706-b992-3a5120c7c322.json and https://artists.proofprofile.net/proofs/artist/1c4f12d7-53cb-4706-b992-3a5120c7c322.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xe90f137d687d7e2bd41cf4351f2409ee77089a143025a3f3b31fb6aa6d4c5b71","name":"Marcel Kapteijn","registered_at":"2026-06-11T13:42:25Z","symbol":"NIM0038107","token_address":"0x0fa4368a18d77ee9a81993b9da297c059548739a","type":"artist","uuid":"1c4f12d7-53cb-4706-b992-3a5120c7c322"}
album: Van Een Andere Planeet
  type: MusicAlbum
  date published: 2006-09-01
album: Van Een Andere Planeet
  type: MusicAlbum
  date published: 2006-09-01
album: Driftwood
  type: MusicAlbum
  date published: 2013-10-01
album: Driftwood
  type: MusicAlbum
  date published: 2013-10-01
album: Driftwood
  type: MusicAlbum
  date published: 2013-10-01
album: Hands Of Time
  type: MusicAlbum
  date published: 2013-10-01
album: You Are Everything
  type: MusicAlbum
  date published: 2016-09-29
album: You Are Everything
  type: MusicAlbum
  date published: 2016-10-12
album: The Man I Am
  type: MusicAlbum
  date published: 2016-10-16
album: The Man I Am
  type: MusicAlbum
  date published: 2016-10-16
album: Cloudy River
  type: MusicAlbum
  date published: 2017-02-11
album: A Capella River Songs
  type: MusicAlbum
  date published: 2017-10-23
album: De Wereld Is Van Ons
  type: MusicAlbum
  date published: 2018-06-01
album: Ding Dong Days
  type: MusicAlbum
  date published: 2018-10-05
album: Ding Dong Days
  type: MusicAlbum
  date published: 2018-10-05
album: Ding Dong Days
  type: MusicAlbum
  date published: 2018-10-10
album: Ding Dong Days
  type: MusicAlbum
  date published: 2018-10-10
album: A Very Foggy Christmas (feat. The Friendly Ghosts)
  type: MusicAlbum
  date published: 2018-12-07
album: A Very Foggy Christmas
  type: MusicAlbum
  date published: 2018-12-07
album: God Knows
  type: MusicAlbum
  date published: 2019-08-09
album: God Knows
  type: MusicAlbum
  date published: 2019-08-09
album: Magnolia
  type: MusicAlbum
  date published: 2019-08-23
album: Magnolia
  type: MusicAlbum
  date published: 2019-08-23
album: Sad Confetti
  type: MusicAlbum
  date published: 2019-09-20
album: No More Hate
  type: MusicAlbum
  date published: 2019-11-15
album: No More Hate
  type: MusicAlbum
  date published: 2019-11-15
album: Snowflakes
  type: MusicAlbum
  date published: 2019-11-22
album: Snowflakes
  type: MusicAlbum
  date published: 2019-11-22
  track: Snowflakes
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188368
    explicit: false
    by artist: Marcel Kapteijn
    in album: Snowflakes
      type: MusicAlbum
      date published: 2019-11-22
    isrc code: NLC261900100
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T10:33:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaadcd6ce87e8b8d0ebbf9ec9d3f2cb260a9c615363aa7bc3cbf7856d7e43e7ec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC261900100
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0xaadcd6ce87e8b8d0ebbf9ec9d3f2cb260a9c615363aa7bc3cbf7856d7e43e7ec. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLC261900100.
      date published: 2026-07-03T21:18:05Z
    audio: Snowflakes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.989
      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: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.487
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.488
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.579
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.768
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
album: River Of Gold
album: Eyes On The Road
album: Jingle Jangle Song
album: Christmas With The Family
album: Palm Trees
album: Wild Wild West
album: Echo Park
album: Rivers & Roads
album: Naked In The Snow
album: A Family Christmas
album: Once Upon A Town
album: Muddy Waters
album: Christmas In The Air
album: Lost & Found
album: Time Looks Good On You
album: Wandering Soul
album: Gravel Road
album: No Worries
album: Colours of Xmas
album: The Fire Inside
album: Streetcorner Hero
album: What Makes A King
album: Snowflakes On Her Tongue
album: Merry Everything To Everyone (feat. The Raindogs)
album: Dog Left In The Rain
album: In The Middle Of It
album: Global Christmas
track: On We Go (feat. Marcel Kapteijn)
track: Palm Trees

On We Go (feat. Marcel Kapteijn)
type: MusicRecording
duration: PT2M33S
duration ms: 153065
explicit: false
by artist: Bunch Of Grapes
by artist: Marcel Kapteijn
in album: Songs Of Longing
  type: MusicAlbum
  date published: 2021-10-22
isrc code: NLC262100028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:07:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x811e1d5595bed35c32130ca15bca426239a20c8fb6c6ea34f132915b57f4f34b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262100028
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811e1d5595bed35c32130ca15bca426239a20c8fb6c6ea34f132915b57f4f34b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262100028.
  date published: 2026-07-08T03:22:41Z
audio: On We Go (feat. Marcel Kapteijn)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.481
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.318
  additional property: Energy
    type: PropertyValue
    value: 0.224
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.873
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.188
  additional property: Liveness
    type: PropertyValue
    value: 0.143
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.345
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.218
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Palm Trees
type: MusicRecording
duration: PT3M8S
duration ms: 188328
explicit: false
by artist: Marcel Kapteijn
in album: Songs Of Longing
  type: MusicAlbum
  date published: 2021-10-22
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bfd23a15f828cec18382ecddc468dbbefcef8d1ba0a42256d5e8ddd1387bd9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLC262100003.
  date published: 2026-07-31T13:04:34Z
audio: Palm Trees
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.173
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.552
  additional property: Energy
    type: PropertyValue
    value: 0.569
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.662
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.369
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.694
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLC262100003
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960403
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:04:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262100003
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34+00:00
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Mode Name
type: PropertyValue
value: Major

River Of Gold
type: MusicAlbum
date published: 2020-05-08
track: River Of Gold
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186500
  explicit: false
  by artist: Marcel Kapteijn
  in album: River Of Gold
    type: MusicAlbum
    date published: 2020-05-08
  isrc code: NLC262000039
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T05:50:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2fab0470ee1a399764ac7ed3a68edaf065e9eb6ad7a8e7e05116989280b0394e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958251
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958251
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262000039
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T06:29:25Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fab0470ee1a399764ac7ed3a68edaf065e9eb6ad7a8e7e05116989280b0394e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262000039.
    date published: 2026-07-16T06:29:25Z
  audio: River Of Gold
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 168.011
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.512
    additional property: Energy
      type: PropertyValue
      value: 0.303
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.647
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.009
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.265
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.801
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

River Of Gold
type: MusicAlbum
date published: 2020-05-08

Eyes On The Road
type: MusicAlbum
date published: 2020-10-02

Eyes On The Road
type: MusicAlbum
date published: 2020-10-02

Jingle Jangle Song
type: MusicAlbum
date published: 2020-10-23

Christmas With The Family
type: MusicAlbum
date published: 2020-11-20

Palm Trees
type: MusicAlbum
date published: 2021-03-26

Wild Wild West
type: MusicAlbum
date published: 2021-07-09

Echo Park
type: MusicAlbum
date published: 2021-09-24

Rivers & Roads
type: MusicAlbum
date published: 2021-10-01

Naked In The Snow
type: MusicAlbum
date published: 2021-11-08

A Family Christmas
type: MusicAlbum
date published: 2021-11-15

Once Upon A Town
type: MusicAlbum
date published: 2022-03-18

Muddy Waters
type: MusicAlbum
date published: 2022-08-05

Christmas In The Air
type: MusicAlbum
date published: 2022-10-28

Lost & Found
type: MusicAlbum
date published: 2023-02-03

Time Looks Good On You
type: MusicAlbum
date published: 2023-04-28

Wandering Soul
type: MusicAlbum
date published: 2023-06-02
track: Wild Wild West
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181978
  explicit: false
  by artist: Marcel Kapteijn
  in album: Wandering Soul
    type: MusicAlbum
    date published: 2023-06-02
  isrc code: NLC262100013
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T06:50:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x16fdbc6ed9abc3d36e725d5eef8c8ef509410c26ca004f440805f69b60795f16
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262100013
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:14:39Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fdbc6ed9abc3d36e725d5eef8c8ef509410c26ca004f440805f69b60795f16. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262100013.
    date published: 2026-07-19T07:14:39Z
  audio: Wild Wild West
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.968
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.484
    additional property: Energy
      type: PropertyValue
      value: 0.517
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.652
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.23
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.364
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.674
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Once Upon A Town
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179250
  explicit: false
  by artist: Marcel Kapteijn
  in album: Wandering Soul
    type: MusicAlbum
    date published: 2023-06-02
  isrc code: NLC262200003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T18:04:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7a4419ead6417155be25effd0fee7484aefd3441167b1b1e68c3a6f4c2de8189
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956841
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956841
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262200003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T22:14:35Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4419ead6417155be25effd0fee7484aefd3441167b1b1e68c3a6f4c2de8189. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262200003.
    date published: 2026-07-05T22:14:35Z
  audio: Once Upon A Town
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.936
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.483
    additional property: Energy
      type: PropertyValue
      value: 0.538
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.363
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.28
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.779
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Eyes On The Road
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190568
  explicit: false
  by artist: Marcel Kapteijn
  in album: Wandering Soul
    type: MusicAlbum
    date published: 2023-06-02
  isrc code: NLC262000048
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T20:21:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6463b70db63e59f31140c9e26ae239923d5bbd03331581014e8ae29c7378b45e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958060
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958060
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262000048
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Eyes On The Road

OTSTimestamp
type: PropertyValue
value: 2026-07-14T20:39:42Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6463b70db63e59f31140c9e26ae239923d5bbd03331581014e8ae29c7378b45e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC262000048.
date published: 2026-07-14T20:39:42Z

Eyes On The Road
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 88.039
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.44
additional property: Energy
  type: PropertyValue
  value: 0.642
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.675
additional property: Instrumentalness
  type: PropertyValue
  value: 0.057
additional property: Liveness
  type: PropertyValue
  value: 0.194
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.543
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.696
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Gravel Road
type: MusicAlbum
date published: 2023-06-23

No Worries
type: MusicAlbum
date published: 2023-10-20

Colours of Xmas
type: MusicAlbum
date published: 2023-11-17

The Fire Inside
type: MusicAlbum
date published: 2024-04-26

Streetcorner Hero
type: MusicAlbum
date published: 2024-07-26

What Makes A King
type: MusicAlbum
date published: 2024-09-27

Snowflakes On Her Tongue
type: MusicAlbum
date published: 2024-10-25

Merry Everything To Everyone (feat. The Raindogs)
type: MusicAlbum
date published: 2024-11-22

Dog Left In The Rain
type: MusicAlbum
date published: 2025-06-13

In The Middle Of It
type: MusicAlbum
date published: 2025-09-19

Global Christmas
type: MusicAlbum
date published: 2025-11-07