Bitcoin Researcher Flags 96-Byte Post-Quantum Transaction Proposal Compact Shielded CSV
- —A single-input transaction records three 32-byte hashes, or 96 bytes, versus 64 bytes in Shielded CSV
- —For a transaction with N inputs, the on-chain footprint is (2N+1) hashes
- —The degriefer lets the owner prove the intended spend without an on-chain signature
- —The protocol was formalised in Lean 4, proving no double-spends and liveness against griefing
Why it matters: Post-quantum readiness is a growing focus for Bitcoin, and compact schemes could limit transaction size growth when quantum-resistant cryptography arrives.
Source: The Crypto Times