samer Haj Islam
type: MusicGroup
popularity: 2
followers: 465
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b01600aa59fd0da6b12b372e53a1ac3a829eb6708caa38e5ea08e4b89db5405
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82337a71-a932-4fd0-a6a6-12f15bc3fb22.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82337a71-a932-4fd0-a6a6-12f15bc3fb22.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/82337a71-a932-4fd0-a6a6-12f15bc3fb22
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b01600aa59fd0da6b12b372e53a1ac3a829eb6708caa38e5ea08e4b89db5405","name":"samer Haj Islam","registered_at":"2026-06-17T10:52:31Z","symbol":"NIM1372704","token_address":"0x6949f107ee980c46794f953f52e36c3789b2f9da","type":"artist","uuid":"82337a71-a932-4fd0-a6a6-12f15bc3fb22"}
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 0x5b01600aa59fd0da6b12b372e53a1ac3a829eb6708caa38e5ea08e4b89db5405. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82337a71-a932-4fd0-a6a6-12f15bc3fb22.json and https://artists.proofprofile.net/proofs/artist/82337a71-a932-4fd0-a6a6-12f15bc3fb22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x5b01600aa59fd0da6b12b372e53a1ac3a829eb6708caa38e5ea08e4b89db5405","name":"samer Haj Islam","registered_at":"2026-06-17T10:52:31Z","symbol":"NIM1372704","token_address":"0x6949f107ee980c46794f953f52e36c3789b2f9da","type":"artist","uuid":"82337a71-a932-4fd0-a6a6-12f15bc3fb22"}
album: Mrabba
  type: MusicAlbum
  date published: 2025-01-15
  track: Mrabba
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253781
    explicit: false
    by artist: samer Haj Islam
    in album: Mrabba
      type: MusicAlbum
      date published: 2025-01-15
    isrc code: QT3F32491479
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:13:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x692dabef3af0f670ab5c6c96c530746d8ef89b63fb68e7279a8fd2e4ef8bb01b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958850
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958850
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F32491479
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:32:30Z
    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 0x692dabef3af0f670ab5c6c96c530746d8ef89b63fb68e7279a8fd2e4ef8bb01b. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QT3F32491479.
      date published: 2026-07-20T08:32:30Z
    audio: Mrabba
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.974
      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: 0.853
      additional property: Energy
        type: PropertyValue
        value: 0.424
      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.804
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.782
      additional property: Liveness
        type: PropertyValue
        value: 0.238
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.771
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.484
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Enchanted
  type: MusicAlbum
  date published: 2025-04-20
album: Late night regrets
  type: MusicAlbum
  date published: 2025-07-31