Chiel Nugter
type: MusicGroup
genre: neoclassical
popularity: 8
followers: 1329
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x394be2eb5ebaf351ef42c68c3174a1be77f43eb1e71fc616a9bfb2a27484a54b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x394be2eb5ebaf351ef42c68c3174a1be77f43eb1e71fc616a9bfb2a27484a54b","name":"Chiel Nugter","registered_at":"2026-06-21T15:37:01Z","symbol":"NIM1961070","token_address":"0x5ccd68b08bc91cb35aef1ea3c41db9d7cda06a50","type":"artist","uuid":"f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649"}
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 0x394be2eb5ebaf351ef42c68c3174a1be77f43eb1e71fc616a9bfb2a27484a54b. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649.json and https://artists.proofprofile.net/proofs/artist/f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x394be2eb5ebaf351ef42c68c3174a1be77f43eb1e71fc616a9bfb2a27484a54b","name":"Chiel Nugter","registered_at":"2026-06-21T15:37:01Z","symbol":"NIM1961070","token_address":"0x5ccd68b08bc91cb35aef1ea3c41db9d7cda06a50","type":"artist","uuid":"f6dcb17b-b0d5-4a0a-b0c9-b5479e6a6649"}
album: Florissant
  type: MusicAlbum
  date published: 2020-02-01
  track: Watertoren
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170332
    explicit: false
    by artist: Chiel Nugter
    in album: Florissant
      type: MusicAlbum
      date published: 2020-02-01
    genre: neoclassical
    isrc code: GBSMU9597064
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:40:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc91f8f67a984054891eda492fbbbf3a1eea95322983b431fe1d6442d5598bfaa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9597064
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:06:47Z
    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 0xc91f8f67a984054891eda492fbbbf3a1eea95322983b431fe1d6442d5598bfaa. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBSMU9597064.
      date published: 2026-07-04T02:06:47Z
    audio: Watertoren
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.55
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.294
      additional property: Energy
        type: PropertyValue
        value: 0.266
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.971
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.158
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.175
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.332
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Florissant
  type: MusicAlbum
  date published: 2020-02-01
album: Hertogstad
  type: MusicAlbum
  date published: 2020-04-02
album: Hertogstad
  type: MusicAlbum
  date published: 2020-09-03
album: Hertogstad
  type: MusicAlbum
  date published: 2020-09-03
album: Vannatuure
  type: MusicAlbum
  date published: 2020-12-03
album: Masquerade
  type: MusicAlbum
  date published: 2021-09-20
album: Masquerade
  type: MusicAlbum
  date published: 2021-09-20
album: Madelief
  type: MusicAlbum
  date published: 2022-10-21
album: Hemelen
  type: MusicAlbum
  date published: 2022-11-25
album: Hemelen
  type: MusicAlbum
  date published: 2022-11-25
album: Verwonder
  type: MusicAlbum
  date published: 2023-01-27
album: Memoires
  type: MusicAlbum
  date published: 2023-06-15
album: Walsje voor Tam
  type: MusicAlbum
  date published: 2023-06-19
album: Walsje voor Tam
  type: MusicAlbum
  date published: 2023-07-06
album: All of Life
  type: MusicAlbum
  date published: 2023-11-26
album: Underneath the Tree
  type: MusicAlbum
  date published: 2023-12-13
album: Spirit of the Times
  type: MusicAlbum
  date published: 2024-09-10
album: Memoria
  type: MusicAlbum
  date published: 2024-12-12
  track: Memoria
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190874
    explicit: false
    by artist: Chiel Nugter
    in album: Memoria
      type: MusicAlbum
      date published: 2024-12-12
    genre: neoclassical
    isrc code: GXF972444901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:22:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe7ba8d45db8b8c8023642d069e0e60c26fbc8b5208b1a0fc24c82fc31ca721ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Memoria

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958473

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958473

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXF972444901

OTSTimestamp
type: PropertyValue
value: 2026-07-18T00:52:36Z

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 0xe7ba8d45db8b8c8023642d069e0e60c26fbc8b5208b1a0fc24c82fc31ca721ac. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/GXF972444901.
date published: 2026-07-18T00:52:36Z

Memoria
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 87.628
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 1
additional property: Danceability
  type: PropertyValue
  value: 0.352
additional property: Energy
  type: PropertyValue
  value: 0.239
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.89
additional property: Instrumentalness
  type: PropertyValue
  value: 0.915
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.349
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.194
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor