LapseCoin

Peer-to-peer cash secured by a VDF instead of proof-of-work

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August 30, 2026 Building a VDF-based cryptocurrency instead of proof-of-work, first real update

I've been building LapseCoin, a peer-to-peer cryptocurrency that replaces proof-of-work with a Verifiable Delay Function: block production tied to real elapsed sequential time instead of a race for a lucky hash. The pitch is that it avoids the ASIC arms race PoW created, since VDF hardware has a much smaller measured advantage gap (roughly 3-10x from Chia's own 2019 hardware competition on the same construction, not the 10,000x+ ASICs reached over commodity hardware).

Most of the last week went into actually stress-testing the consensus design rather than just writing it up: ran Monte Carlo simulations on whether an operator running many builder addresses gets an unfair edge (it doesn't, checked, not assumed), pulled real data off my live node's chain database to calibrate the numbers against actual observed behavior instead of guesswork, and fixed a live bug that was quietly breaking part of the test suite.

No premine, fair launch, whitepaper and code both public. What I actually want right now is people poking holes in the mechanism, not users. If VDF-based Sybil resistance interests you at all, I'd genuinely appreciate a critical read.

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Bitcoin's proof-of-work ties reward unboundedly to hash rate, driving an ASIC arms race. I built a VDF-based alternative with a smaller hardware gap, tested rigorously, and want real critique on where it might be wrong