SciChain Docs
NIST FIPS 204 · ML-DSA on-chain

The blockchain built to outlive the quantum threat.

SciChain is an Ethereum-compatible, permissioned blockchain that runs classical and post-quantum signatures side by side. Deploy the Solidity you already know — and sign with lattice-based ML-DSA that a quantum computer cannot forge.

Chain ID
481
Consensus
QBFT ~5s
PQC signature
ML-DSA-44
Network
Live
What it is

A Hyperledger Besu fork, hardened for the post-quantum era

SciChain takes the enterprise-grade EVM client Hyperledger Besu and adds a full post-quantum signature stack. Every tool in the Ethereum ecosystem — MetaMask, ethers.js, Hardhat, Foundry, The Graph — works unchanged, because SciChain speaks standard JSON-RPC and runs the standard EVM at the Shanghai fork level. The difference lives underneath: transactions can be authenticated with NIST-standardized lattice signatures instead of ECDSA.

ML-DSA-44 signatures

Transactions signed with CRYSTALS-Dilithium2 (NIST FIPS 204). 1312-byte public keys, 2420-byte signatures — security that holds against Shor's algorithm.

Hybrid transaction model

Classical ECDSA and post-quantum transactions share one ledger. Migrate at your own pace — no hard cutover, no forked history.

Algorithm agility

ML-DSA-44/65/87 plus SLH-DSA (SPHINCS+, FIPS 205) as a hash-based backup family. A signature-type registry lets the chain adopt new algorithms without a rewrite.

On-chain verification precompile

Verify ML-DSA-44 signatures directly from Solidity via the precompile at 0x…0134. Build quantum-safe multisigs, bridges, and identity contracts.

QBFT finality in ~5s

Istanbul BFT consensus across a permissioned validator set gives immediate, deterministic finality — no reorgs, no probabilistic waiting.

Full EVM compatibility

Shanghai-level EVM with PUSH0. Compile with solc 0.8.20+, deploy with the tools you already use, and point them at rpc.scimatic.net.

Why post-quantum, why now

An adversary can capture signed transactions today and forge new ones the moment a cryptographically-relevant quantum computer arrives — a "harvest now, forge later" attack against every ECDSA key ever exposed. SciChain closes that window using the signature algorithms NIST finalized in FIPS 204 and 205, so the chain's security assumptions survive the transition instead of expiring with it.

Explore the post-quantum stack
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