Latest posts

  • 11 September 2026

How cache optimization, not broken crypto, caused inflation on Liquid

On September 6th 2026, the Liquid network lost about 4000 BTC after an attacker exploited an inflation bug. This article explains some of the background and code that was exploited.

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  • 09 June 2025

JIT fees with TXHASH: comparing options for sponsorring and stacking

Comparison of CPFP, TX sponsors, raw TXHASH and TXSIGHASH constructios for sponsorring and stacking bitcoin transactions.

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  • 15 April 2025

hArk & Erk: Evolving the Ark protocol using CTV and CSFS

A technical formalization of different Ark protocol constructions. From traditional Ark and covenant-less clArk, to new constructions hArk and Erk which are based on CTV and CSFS.

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  • 10 March 2025

CTV+CSFS: Can we reach consensus on a first step towards covenants?

A look at the momentum behind a covenant bitcoin upgrade proposal based on CTV and CSFS.

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