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Weak Blocks – The Good And The Bad

I’ve been looking at weak blocks and I’m trying to sort out the good and the bad about it. How it works Weak blocks are blocks that does not appear in the blockchain, only in the p2p network. Miners produce these blocks with reduced difficulty, for example...

Proof of Payment design choices

In this post I’ll try to explain some design choices for BIP 120, Proof of Payment, and also comment on some critique against it. Basically a Proof of Payment looks exactly like a Bitcoin transaction: Note how Pop(T) in indistiguashable from a Bitcoin...

Sorting out Replace By Fee

Recent months, I’ve been pretty confused over all the different flavors of Replace By Fee (RBF). There’s RBF, FSS-RBF, RBF scorched earth, opt-in RBF and possibly heaps of other variants. This blog post aims at bringing clarity (to me) what all this means...

Impressions from Scaling Bitcoin workshop

Last week I attended Scaling Bitcoin in Hong Kong. I will try to summarize my main takeaways from that. Segregated witness The talk that caused most buzz was Pieter Wuille on segregated witness. This is a really interesting idea that’s actually implemented (sort...