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Defending against the nothing-at-stake problem in multi-threaded blockchains. (arXiv:2302.10009v2 [cs.CR] UPDATED)
cs.CR updates on arXiv.org arxiv.org
In blockchain systems, the scarcity of a resource is used as a Sybil
protection mechanism. In Proof-of-Work blockchains, that resource is computing
power. In the event of a fork, the scarcity of this resource theoretically
prevents miners from producing blocks on both branches of a fork. In
Proof-of-Stake blockchains, because that resource is token stake, the
computational cost of creating a block is negligible. In the event of a fork,
and if no specific measures have been taken, rational block …
block blockchain blockchains computational computing cost event fork miners power problem producing protection scarcity systems token work