QoreChain has completed what it claims is the first blockchain transaction secured end-to-end with all three NIST-standardized post-quantum cryptographic algorithms on a live public mainnet. The transaction uses ML-DSA-87 (FIPS 204) for digital signatures, ML-KEM-1024 (FIPS 203) for key encapsulation, and SHAKE-256 for hashing. Unlike other projects that replace only one cryptographic component, QoreChain applied post-quantum protection across the full cryptographic path. The transaction was sent to a Keplr wallet — a mainstream self-custody wallet — and is publicly verifiable on the QoreChain block explorer. The company highlights the 'Harvest Now, Decrypt Later' threat as motivation: blockchains record history permanently, so any ledger not secured with post-quantum cryptography from inception risks retroactive exposure once cryptographically relevant quantum computers emerge.
