Saiful Islam
type: MusicGroup
description: Saiful Islam or Saif al-Islam (; "Sword of Islam"), may refer to: People Khalid ibn al-Walid, general and companion to the Islamic prophet Muhammad Tughtakin ibn Ayyub, second Ayyubid emir of Yemen
popularity: 2
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd45f8ddf756c214ea401db9c03edfb43bddafc01702a8d83129f1808cc3204ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fb65c2f-2969-4eda-a7a9-81bc16806334.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fb65c2f-2969-4eda-a7a9-81bc16806334.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fb65c2f-2969-4eda-a7a9-81bc16806334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd45f8ddf756c214ea401db9c03edfb43bddafc01702a8d83129f1808cc3204ef","name":"Saiful Islam","registered_at":"2026-06-20T05:22:01Z","symbol":"NIM1524151","token_address":"0x716e1f6bf61c29bafc7733230ca065dd74d00748","type":"artist","uuid":"9fb65c2f-2969-4eda-a7a9-81bc16806334"}
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 0xd45f8ddf756c214ea401db9c03edfb43bddafc01702a8d83129f1808cc3204ef. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fb65c2f-2969-4eda-a7a9-81bc16806334.json and https://artists.proofprofile.net/proofs/artist/9fb65c2f-2969-4eda-a7a9-81bc16806334.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xd45f8ddf756c214ea401db9c03edfb43bddafc01702a8d83129f1808cc3204ef","name":"Saiful Islam","registered_at":"2026-06-20T05:22:01Z","symbol":"NIM1524151","token_address":"0x716e1f6bf61c29bafc7733230ca065dd74d00748","type":"artist","uuid":"9fb65c2f-2969-4eda-a7a9-81bc16806334"}
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