Ankit Sinha · Backend EngineerWriting · The ArchiveIssue No. 01 · 27 SEP 2026

Ankit Sinha

Writing

The Archive

Everything filed so far, newest first. Essays beyond the engineering desk will run here too.

  1. July 2026Content-Addressable StorageStoring the same bytes once, and deleting them exactly when nobody needs them.Report 001 · Storage · Distributed Systems
  2. September 2025Designing a Message-Driven SystemSix services, one conversation, and why none of them call each other.Report 002 · Messaging · Microservices
  3. June 2026JWT Rotation and Authentication ArchitectureShort-lived access, opaque refresh, and a stolen token that cannot be replayed.Report 003 · Security · Authentication
  4. April 2026Payments Confirmed on Cryptographic ProofWhy a donation is not complete because the browser says so.Report 004 · Security · Payments