ROI
type: MusicGroup
popularity: 14
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc34fee7d1335d04631e0bc54d60b0746822b88f5d89051d31cc2a61a0d80572
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38871471-21e3-45e9-9dce-d2aa90bf5fa0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38871471-21e3-45e9-9dce-d2aa90bf5fa0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/38871471-21e3-45e9-9dce-d2aa90bf5fa0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:10:39Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc34fee7d1335d04631e0bc54d60b0746822b88f5d89051d31cc2a61a0d80572. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38871471-21e3-45e9-9dce-d2aa90bf5fa0.json and https://artists.proofprofile.net/proofs/artist/38871471-21e3-45e9-9dce-d2aa90bf5fa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:10:39Z
album: Als Het Donker Is
  type: MusicAlbum
  date published: 2020-02-14
album: Als Het Donker Is
  type: MusicAlbum
  date published: 2020-02-14
album: Quarantine Dreaming
  type: MusicAlbum
  date published: 2020-04-10
album: Quarantine Dreaming
  type: MusicAlbum
  date published: 2020-04-10
album: FF Voorstellen
  type: MusicAlbum
  date published: 2020-05-08
album: FF Voorstellen
  type: MusicAlbum
  date published: 2020-05-08
album: Old No.7
  type: MusicAlbum
  date published: 2020-07-31
album: Moulin Rouge
  type: MusicAlbum
  date published: 2020-09-18
album: Hypocriet Verliefd
  type: MusicAlbum
  date published: 2021-01-15
album: Heaven In De Middag
  type: MusicAlbum
  date published: 2021-01-22
album: Dim De Lichten
  type: MusicAlbum
  date published: 2021-01-29
album: Love Storiez
  type: MusicAlbum
  date published: 2021-02-14
album: Flipperkast
  type: MusicAlbum
  date published: 2021-04-23
album: Fanatiek
  type: MusicAlbum
  date published: 2021-06-04
album: GHB
  type: MusicAlbum
  date published: 2021-06-18
album: The 2 Week Show
  type: MusicAlbum
  date published: 2021-09-03
album: Talk To The Manager
  type: MusicAlbum
  date published: 2022-04-29
album: Talk To The Manager
  type: MusicAlbum
  date published: 2022-04-29
album: DOMME FLEX
  type: MusicAlbum
  date published: 2022-05-27
album: DOMME FLEX
  type: MusicAlbum
  date published: 2022-05-27
album: FEEST
  type: MusicAlbum
  date published: 2022-08-26
album: FEEST
  type: MusicAlbum
  date published: 2022-08-26
album: VANGRAIL
  type: MusicAlbum
  date published: 2022-10-07
album: LAAT MIJ NIET LOS
  type: MusicAlbum
  date published: 2022-12-16
album: LAAT MIJ NIET LOS
  type: MusicAlbum
  date published: 2022-12-16
album: LAAT MIJ NIET LOS (ACOUSTIC)
  type: MusicAlbum
  date published: 2023-01-20
album: STIEKEM
  type: MusicAlbum
  date published: 2023-06-16
album: PROBLEEM
  type: MusicAlbum
  date published: 2023-10-27
album: 1 Laatste Keer
  type: MusicAlbum
  date published: 2023-12-01
album: Rozenblaadjes
  type: MusicAlbum
  date published: 2024-02-16
album: Hou Me Vast
  type: MusicAlbum
  date published: 2024-05-17
album: Mowgli
  type: MusicAlbum
  date published: 2024-07-12
album: Ogen Dicht
  type: MusicAlbum
  date published: 2024-09-20
album: ROI
  type: MusicAlbum
  date published: 2024-10-11
album: ROI
  type: MusicAlbum
  date published: 2024-10-11
album: Als Ik Jou Was
  type: MusicAlbum
  date published: 2025-05-09
  track: Als Ik Jou Was
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190865
    explicit: false
    by artist: ROI
    in album: Als Ik Jou Was
      type: MusicAlbum
      date published: 2025-05-09
    isrc code: NL8RL2514957
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:12:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde6d80775f9c0a32aa6908cff0012cf75136d7e41595154c0bbe42974396aae6
    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/NL8RL2514957
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6d80775f9c0a32aa6908cff0012cf75136d7e41595154c0bbe42974396aae6. 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/NL8RL2514957.
      date published: 2026-07-05T01:12:41Z
    audio: Als Ik Jou Was
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.131
      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: 0.655
      additional property: Energy
        type: PropertyValue
        value: 0.148
      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
album: Voicemail
album: HOUDINI

Speechiness
type: PropertyValue
value: 0.032

Acousticness
type: PropertyValue
value: 0.88

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.289

Loudness (dB)
type: PropertyValue
value: -13.685

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Voicemail
type: MusicAlbum
date published: 2025-08-08

HOUDINI
type: MusicAlbum
date published: 2025-10-10