Olfa Ben Romdhane
type: MusicGroup
popularity: 5
followers: 2026
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0437faadd9c01e8c3a487efc0f04e1d9db6ba8835be680bdf49ecac9e0c121da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4e16523-5384-4d5a-9fed-de514d14ab13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4e16523-5384-4d5a-9fed-de514d14ab13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e4e16523-5384-4d5a-9fed-de514d14ab13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0437faadd9c01e8c3a487efc0f04e1d9db6ba8835be680bdf49ecac9e0c121da","name":"Olfa Ben Romdhane","registered_at":"2026-06-21T08:28:44Z","symbol":"NIM1875085","token_address":"0x4490a0770fb0ac5a038cbd8a806dd1952205a7eb","type":"artist","uuid":"e4e16523-5384-4d5a-9fed-de514d14ab13"}
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 0x0437faadd9c01e8c3a487efc0f04e1d9db6ba8835be680bdf49ecac9e0c121da. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4e16523-5384-4d5a-9fed-de514d14ab13.json and https://artists.proofprofile.net/proofs/artist/e4e16523-5384-4d5a-9fed-de514d14ab13.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x0437faadd9c01e8c3a487efc0f04e1d9db6ba8835be680bdf49ecac9e0c121da","name":"Olfa Ben Romdhane","registered_at":"2026-06-21T08:28:44Z","symbol":"NIM1875085","token_address":"0x4490a0770fb0ac5a038cbd8a806dd1952205a7eb","type":"artist","uuid":"e4e16523-5384-4d5a-9fed-de514d14ab13"}
album: Yoktel
  type: MusicAlbum
  date published: 2015-10-07
album: Andi Ghzeli
  type: MusicAlbum
  date published: 2015-10-07
album: Mahla Zinou
  type: MusicAlbum
  date published: 2016-03-14
album: Twahachtak
  type: MusicAlbum
  date published: 2018-07-23
album: Ya sid ness
  type: MusicAlbum
  date published: 2019-07-16
album: Had El Maktoub
  type: MusicAlbum
  date published: 2020-11-14
  track: Had El Maktoub
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237221
    explicit: false
    by artist: Olfa Ben Romdhane
    in album: Had El Maktoub
      type: MusicAlbum
      date published: 2020-11-14
    isrc code: TNA010002138
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:58:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3843555a7af68b0213827fa89d1802cf1bbf96d200c9347de3fc86e6dc5c80c2
    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/TNA010002138
    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 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 0x3843555a7af68b0213827fa89d1802cf1bbf96d200c9347de3fc86e6dc5c80c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TNA010002138 — a six-check JSON result.
      date published: 2026-07-05T10:01:46Z
    audio: Had El Maktoub
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 153.272
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.635
      additional property: Energy
        type: PropertyValue
        value: 0.746
      additional property: Speechiness
        type: PropertyValue
        value: 0.124
      additional property: Acousticness
        type: PropertyValue
        value: 0.261
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.319
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.488
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.236
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Enseni
  type: MusicAlbum
  date published: 2024-02-24
album: Jrit W Jajrit
  type: MusicAlbum
  date published: 2024-11-18