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cs.CR2025
Sedna: Sharding transactions in multiple concurrent proposer blockchains
Alejandro Ranchal-Pedrosa, Benjamin Marsh, Lefteris Kokoris-Kogias +1
Modern blockchains increasingly adopt multi-proposer (MCP) consensus to remove single-leader bottlenecks and improve censorship resistance. However, MCP alone does not resolve how…
cs.CR2025
A Time-Bound Signature Scheme for Blockchains
Benjamin Marsh, Paolo Serafino
We introduce a modified Schnorr signature scheme to allow for time-bound signatures for transaction fee auction bidding and smart contract purposes in a blockchain context, ensurin…