Marlijn
type: MusicGroup
popularity: 9
followers: 1154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0be0e2500e6baa53e69a2ce047b2adf74fa407bc0786c7fb4f9141f3f8dc38df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c82df04a-f730-43d3-a60a-78b20f4f19a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c82df04a-f730-43d3-a60a-78b20f4f19a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c82df04a-f730-43d3-a60a-78b20f4f19a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be0e2500e6baa53e69a2ce047b2adf74fa407bc0786c7fb4f9141f3f8dc38df. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c82df04a-f730-43d3-a60a-78b20f4f19a1.json and https://artists.proofprofile.net/proofs/artist/c82df04a-f730-43d3-a60a-78b20f4f19a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
album: Vanaf Hier
  type: MusicAlbum
  date published: 2019-08-16
album: Moed
  type: MusicAlbum
  date published: 2019-09-08
album: Wonder Van de Regen
  type: MusicAlbum
  date published: 2019-10-14
album: MARLIJN
  type: MusicAlbum
  date published: 2020-03-13
  track: Moed
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222666
    explicit: false
    by artist: Marlijn
    in album: MARLIJN
      type: MusicAlbum
      date published: 2020-03-13
    isrc code: NL2PT2000001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:16:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb20594e27e440d9a4905880795b8effacd7036260b3193c5b3ecfa132035eb9a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL2PT2000001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20594e27e440d9a4905880795b8effacd7036260b3193c5b3ecfa132035eb9a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL2PT2000001.
      date published: 2026-07-06T01:25:57Z
    audio: Moed
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.026
      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: 0.542
      additional property: Energy
        type: PropertyValue
        value: 0.415
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.43
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.486
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.768
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: MARLIJN
  type: MusicAlbum
  date published: 2020-03-13
album: Sammie
  type: MusicAlbum
  date published: 2021-04-25
album: Samen
  type: MusicAlbum
  date published: 2023-02-03
album: Daar Wil Ik Heen
  type: MusicAlbum
  date published: 2023-04-21
album: Heel Anders
  type: MusicAlbum
  date published: 2023-09-29
album: Sterrenkijker
  type: MusicAlbum
  date published: 2023-12-22
album: Mam
  type: MusicAlbum
  date published: 2024-03-22
  track: Daar Wil Ik Heen
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184890
    explicit: false
    by artist: Marlijn
    in album: Mam
      type: MusicAlbum
      date published: 2024-03-22
    isrc code: NL5NC2300002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:06:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa37ec43ec7b22a47fb08c6f5953625dcfb21e71a49654d6ccae781a36c68746a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5NC2300002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37ec43ec7b22a47fb08c6f5953625dcfb21e71a49654d6ccae781a36c68746a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL5NC2300002.
      date published: 2026-07-05T01:12:41Z
    audio: Daar Wil Ik Heen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 205.817
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.355

Energy
type: PropertyValue
value: 0.418

Speechiness
type: PropertyValue
value: 0.049

Acousticness
type: PropertyValue
value: 0.686

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.112

Valence (Positivity)
type: PropertyValue
value: 0.38

Loudness (dB)
type: PropertyValue
value: -9.76

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major