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Interchain Timestamping for Mesh Security. (arXiv:2305.07830v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
Fourteen years after the invention of Bitcoin, there has been a proliferation
of many permissionless blockchains. Each such chain provides a public ledger
that can be written to and read from by anyone. In this multi-chain world, a
natural question arises: what is the optimal security an existing blockchain, a
consumer chain, can extract by only reading and writing to k other existing
blockchains, the provider chains? We design a protocol, called interchain
timestamping, and show that it extracts the …
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