68 citations · 253 across the 31 of their papers we have counts for
33 papers
Stirling-Ramanujan constants are exponential periods
Vicente Muñoz, Ricardo Perez-Marco
Ramanujan studied a general class of Stirling constants that are the resummation of some natural divergent series. These constants include the classical Euler-Mascheroni, Stirling…
Proof of reserves and non-double spends for Chaumian Mints
Cyril Grunspan, Ricardo Perez-Marco
E-cash was invented in 1982 by David Chaum as an anonymous cryptographic electronic cash system based on blind signatures. It is not a decentralized form of money as Bitcoin. It re…
Proof of Reputation
Cyril Grunspan, Ricardo Perez-Marco
We present the new mining protocol Proof-of-Reputation (PoR) for decentralized Proof-of-Work (PoW) blockchains, in particular for Bitcoin. PoR combines the classical PoW with the n…
Difference equations and Omega functions
Ricardo Perez-Marco
We introduce Omega functions that generalize Euler Gamma functions and study the functional difference equation they satisfy. Under a natural exponential growth condition, the vect…
Ping-Pong Swaps
Cyril Grunspan, Ricardo Perez-Marco
We propose Ping-Pong Swaps: A secure pure peer-to-peer crosschain swap mechanism of tokens or cryptocurrencies that does not require escrow nor an intermediate trusted third party.…
Block withholding resilience
Cyril Grunspan, Ricardo Perez-Marco
It has been known for some time that the Nakamoto consensus as implemented in the Bitcoin protocol is not totally aligned with the individual interests of the participants. More pr…