Asynchronous messaging in sharded blockchains creates new reentrancy interleavings; this paper offers ICP locking patterns and a TLA+ verification approach, demonstrated on ckBTC.
Smart contract security field guide - reentrancy,
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Combating Reentrancy Bugs on Sharded Blockchains
Asynchronous messaging in sharded blockchains creates new reentrancy interleavings; this paper offers ICP locking patterns and a TLA+ verification approach, demonstrated on ckBTC.