3 papers
cs.CR2025
OTS-PC: OTS-based Payment Channels for the Lightning Network
Sergio Demian Lerner, Ariel Futoransky
We present a new type of bidirectional payment channel based on One-Time Signatures on state sequence numbers. This new construction is simpler than the Poon-Dryja construction, bu…
cs.CR2025
BATTLE for Bitcoin: Capital-Efficient Optimistic Bridges with Large Committees
Sergio Demian Lerner, Ariel Futoransky
We present BATTLE for Bitcoin, a DoS-resilient dispute layer that secures optimistic bridges between Bitcoin and rollups or sidechains. Our design adapts the BATTLE tournament prot…
cs.CR2025
ESSPI: ECDSA/Schnorr Signed Program Input for BitVMX
Sergio Demian Lerner, Martin Jonas, Ariel Futoransky
The BitVM and BitVMX protocols have long relied on inefficient one-time signature (OTS) schemes like Lamport and Winternitz for signing program inputs. These schemes exhibit signif…