I built a clean, quantum-resistant research blockchain from scratch (Rust/Python, custom AIR engine)
Hi everyone,
I built QChain completely from scratch because I believe today’s mainstream blockchains are running on borrowed time. Their ECDSA signatures will eventually fail against Shor’s algorithm, and public ledgers inherently leak user privacy.
QChain is a pure research prototype (Proof of Concept) that runs entirely in-memory over localhost to demonstrate a next-generation architecture. I wanted to see if a single developer could combine post-quantum security with zero-knowledge privacy from the ground up.
**The Tech Stack & Architecture:**Testing & Verification:
I didn't want this to be just a theoretical paper, so the project includes 237 passing automated tests verifying state consistency, transaction execution, and proof soundness.
In the repository, you will find a 1-minute video demo showing the live FastAPI/React dashboard, where you can watch transparent and STARK-shielded transactions sit in the mempool and get confirmed in real-time. I also uploaded the full architecture presentation (PDF) and hosted a quick static index demo page.
I explicitly documented what is NOT done yet (the Honest Scope) because this is a scientific prototype, not a production product.
I am an independent, self-taught developer and an early crypto miner. I’m not selling anything and there are no tokens. I just wanted to build what I believe the future of cryptography should actually look like.
I would love to hear your raw technical feedback on the custom AIR design, the Rescue-Prime integration, or the P2P architecture!Hi everyone,
I
built QChain completely from scratch because I believe today’s
mainstream blockchains are running on borrowed time. Their ECDSA
signatures will eventually fail against Shor’s algorithm, and public
ledgers inherently leak user privacy.
QChain
is a pure research prototype (Proof of Concept) that runs entirely
in-memory over localhost to demonstrate a next-generation architecture. I
wanted to see if a single developer could combine post-quantum security
with zero-knowledge privacy from the ground up.
The Tech Stack & Architecture:
Post-Quantum Security: Implemented Dilithium signatures (NIST FIPS 204) to replace vulnerable classical cryptography.
Hand-Rolled zk-STARKs:
Wrote a custom AIR (Algebraic Intermediate Representation) engine over
the Goldilocks field in Rust (using Winterfell), resolving 4 crucial
soundness gaps in the later milestones.
High-Performance Bindings: Used PyO3 to connect the heavy cryptographic Rust engine to a clean Python P2P gossip layer.
P2P Convergence: Features custom multi-node TCP gossip with message deduplication and automated fork resolution.
Testing & Verification:
I didn't want this to be just a theoretical paper, so the project includes 237 passing automated tests verifying state consistency, transaction execution, and proof soundness.
In the repository, you will find a 1-minute video demo
showing the live FastAPI/React dashboard, where you can watch
transparent and STARK-shielded transactions sit in the mempool and get
confirmed in real-time. I also uploaded the full architecture
presentation (PDF) and hosted a quick static index demo page.
I explicitly documented what is NOT done yet (the Honest Scope) because this is a scientific prototype, not a production product.
I
am an independent, self-taught developer and an early crypto miner. I’m
not selling anything and there are no tokens. I just wanted to build
what I believe the future of cryptography should actually look like.
I
would love to hear your raw technical feedback on the custom AIR
design, the Rescue-Prime integration, or the P2P architecture!