Mathieu & Guillaume
type: MusicGroup
genre: nederpop
popularity: 13
followers: 1152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9071e3b021effb6b45815c85ae2d87f984e0555658256b523e21b4a83438cf87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953599
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953599
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d827f2c-dac9-42b5-8635-7c70215edb5a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d827f2c-dac9-42b5-8635-7c70215edb5a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d827f2c-dac9-42b5-8635-7c70215edb5a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:43:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9071e3b021effb6b45815c85ae2d87f984e0555658256b523e21b4a83438cf87","name":"Mathieu & Guillaume","registered_at":"2026-06-14T05:49:25Z","symbol":"NIM0357871","token_address":"0xec4d7e8be537dc38ad262a81303077b6032d5628","type":"artist","uuid":"0d827f2c-dac9-42b5-8635-7c70215edb5a"}
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 0x9071e3b021effb6b45815c85ae2d87f984e0555658256b523e21b4a83438cf87. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d827f2c-dac9-42b5-8635-7c70215edb5a.json and https://artists.proofprofile.net/proofs/artist/0d827f2c-dac9-42b5-8635-7c70215edb5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:43:55Z
  text: {"copyright_id":"0x9071e3b021effb6b45815c85ae2d87f984e0555658256b523e21b4a83438cf87","name":"Mathieu & Guillaume","registered_at":"2026-06-14T05:49:25Z","symbol":"NIM0357871","token_address":"0xec4d7e8be537dc38ad262a81303077b6032d5628","type":"artist","uuid":"0d827f2c-dac9-42b5-8635-7c70215edb5a"}
album: Ik Heb Je Lief
  type: MusicAlbum
  date published: 2010-01-15
album: Ik Heb Je Lief
  type: MusicAlbum
  date published: 2010-01-15
  track: Ik Heb Je Lief
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180119
    explicit: false
    by artist: Mathieu & Guillaume
    in album: Ik Heb Je Lief
      type: MusicAlbum
      date published: 2010-01-15
    genre: nederpop
    isrc code: BES921000001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:40:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc6320ca05a5a563d688868f0f775e308b0c2c5604d8e135f36d8f0ca2468ba32
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BES921000001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xc6320ca05a5a563d688868f0f775e308b0c2c5604d8e135f36d8f0ca2468ba32. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BES921000001.
      date published: 2026-07-05T19:27:56Z
    audio: Ik Heb Je Lief
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.019
      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: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.433
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.655
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.166
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.212
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.12
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ik Heb Je Lief
  type: MusicAlbum
  date published: 2010-01-15
album: Ik Heb Je Lief
  type: MusicAlbum
  date published: 2010-01-22
album: Kleinste Sterren
  type: MusicAlbum
  date published: 2010-05-08
album: Kleinste Sterren
  type: MusicAlbum
  date published: 2010-05-10
album: De Tijd
  type: MusicAlbum
  date published: 2010-06-04
album: Ga Hand In Hand ( La Esterella Tribute Anne Awards)
  type: MusicAlbum
  date published: 2012-07-22
album: Au Bord De La Route
  type: MusicAlbum
  date published: 2013-05-17
album: Goldmund
  type: MusicAlbum
  date published: 2014-01-01
album: Goldmund
  type: MusicAlbum
  date published: 2014-01-31
album: Beter Dan Jij - Single
  type: MusicAlbum
  date published: 2016-05-30
album: Beter dan jij
  type: MusicAlbum
  date published: 2016-06-01
album: Plettenberg
  type: MusicAlbum
  date published: 2017-09-25
  track: Plettenberg
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207028
    explicit: false
    by artist: Mathieu & Guillaume
    in album: Plettenberg
      type: MusicAlbum
      date published: 2017-09-25
    genre: nederpop
    isrc code: BE2GR1700005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T17:16:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e01aa17c44c71e47e8f2e1d7cd13ae87bfbcdfdfd8f6e6921edfe78b2d219f6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BE2GR1700005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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
    audio: Plettenberg
album: Soleil
album: Au bout du monde
album: Eulegoem
album: Rook
album: Terug naar Plettenberg
album: Half Zo Goed
album: Wachten Op Lou
album: Titelloos Album

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e01aa17c44c71e47e8f2e1d7cd13ae87bfbcdfdfd8f6e6921edfe78b2d219f6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BE2GR1700005.
date published: 2026-07-05T19:27:56Z

Plettenberg
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 107.339
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: 0.538
additional property: Energy
  type: PropertyValue
  value: 0.164
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.848
additional property: Instrumentalness
  type: PropertyValue
  value: 0.005
additional property: Liveness
  type: PropertyValue
  value: 0.119
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.176
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.576
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Soleil
type: MusicAlbum
date published: 2021-06-04

Au bout du monde
type: MusicAlbum
date published: 2022-06-05

Eulegoem
type: MusicAlbum
date published: 2022-12-09

Rook
type: MusicAlbum
date published: 2023-06-30

Terug naar Plettenberg
type: MusicAlbum
date published: 2024-04-12

Half Zo Goed
type: MusicAlbum
date published: 2024-06-07

Wachten Op Lou
type: MusicAlbum
date published: 2024-09-27

Titelloos Album
type: MusicAlbum
date published: 2025-02-21
track: Voor Altijd
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199428
  explicit: false
  by artist: Mathieu & Guillaume
  in album: Titelloos Album
    type: MusicAlbum
    date published: 2025-02-21
  genre: nederpop
  isrc code: BEE202500018
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T05:33:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa99362ef001815f86b84e350d8846477026e4ea81a7a5ee2c9b86db80f28322e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE202500018
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0xa99362ef001815f86b84e350d8846477026e4ea81a7a5ee2c9b86db80f28322e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEE202500018.
    date published: 2026-07-05T10:01:46Z
  audio: Voor Altijd
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.829
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.645
    additional property: Energy
      type: PropertyValue
      value: 0.367
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.856
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.465
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.526
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major