Stacks Labs CTO Adriano Di Luzio outlines what changes with PoX-6

Stacks Labs CTO Adriano Di Luzio has started talking publicly about PoX-6, the next planned version of the network’s Proof of Transfer mechanism. In an October 3, 2026 video, he walked through what he sees as the biggest difference between the upcoming upgrade and the system running today. The timing matters. PoX-5 only went live this summer, so Stacks is already sketching its successor while the current version is still collecting data. The broad direction is clear. PoX-6 is planned as the fully decentralized, algorithmic end state of the Stacks staking model. From curated bootstrap to code-driven auctions To see what PoX-6 is meant to change, start with PoX-5. That hard fork activated on July 30, 2026, at Bitcoin block 960,230. PoX-5 introduced Bitcoin staking through a structure called protocol bonds. Participants lock BTC on Bitcoin Layer 1 and pair it with STX on the Stacks network. The result is a self-custodial yield product: holders earn returns without handing their Bitcoin to a third party. The upgrade also preserved rewards for existing STX stackers. The community vote on SIP-045, the proposal behind PoX-5, cleared with over 99.99% approval. PoX-5 runs in a bootstrap pha...