Maarten Reijnders
type: MusicGroup
popularity: 3
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d363280711cb2bcc6d65deace599e1555cc1af3e2b49916652f70d0280b060f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6c70e4b2-a4d8-4784-858a-0882676a8b26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6c70e4b2-a4d8-4784-858a-0882676a8b26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6c70e4b2-a4d8-4784-858a-0882676a8b26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0d363280711cb2bcc6d65deace599e1555cc1af3e2b49916652f70d0280b060f","name":"Maarten Reijnders","registered_at":"2026-06-17T03:20:19Z","symbol":"NIM1264856","token_address":"0x9aa92c641f0075f37b9e2a9a3173f7607255cfc2","type":"artist","uuid":"6c70e4b2-a4d8-4784-858a-0882676a8b26"}
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 0x0d363280711cb2bcc6d65deace599e1555cc1af3e2b49916652f70d0280b060f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c70e4b2-a4d8-4784-858a-0882676a8b26.json and https://artists.proofprofile.net/proofs/artist/6c70e4b2-a4d8-4784-858a-0882676a8b26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0d363280711cb2bcc6d65deace599e1555cc1af3e2b49916652f70d0280b060f","name":"Maarten Reijnders","registered_at":"2026-06-17T03:20:19Z","symbol":"NIM1264856","token_address":"0x9aa92c641f0075f37b9e2a9a3173f7607255cfc2","type":"artist","uuid":"6c70e4b2-a4d8-4784-858a-0882676a8b26"}
album: Cosmic Rollercoaster
  type: MusicAlbum
  date published: 2024-11-08
album: gemeteran bila dekat kamu
  type: MusicAlbum
  date published: 2025-04-07
album: DUSTA
  type: MusicAlbum
  date published: 2025-04-12
album: Ego Manusia
  type: MusicAlbum
  date published: 2025-04-12
  track: Ego Manusia
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251982
    explicit: false
    by artist: Maarten Reijnders
    in album: Ego Manusia
      type: MusicAlbum
      date published: 2025-04-12
    isrc code: SGW502512536
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:56:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x896451437464eef1a66287da54df10f1faf6a9fa645875dcd0499dbf203f2521
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958842
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958842
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGW502512536
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:58:27Z
    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 0x896451437464eef1a66287da54df10f1faf6a9fa645875dcd0499dbf203f2521. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:58:27Z), 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/SGW502512536.
      date published: 2026-07-20T09:58:27Z
    audio: Ego Manusia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.733
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.776
      additional property: Energy
        type: PropertyValue
        value: 0.748
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.026
      additional property: Liveness
        type: PropertyValue
        value: 0.216
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.162
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.841
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Gak Punya Malu
  type: MusicAlbum
  date published: 2025-04-14