PoBU by theme - Humanode

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PoBU by theme

A collection of 5 posts

Why PoBU is being proposed

Why PoBU is being proposed

In the last piece, we looked at what still needs to happen next for PoBU: clearer rules, safer summaries from the identity side, stronger privacy, broader issuer design, and better measurement. Now it makes sense to step back and ask the biggest question in the whole series: Why is PoBU

How PoBU gets stronger from here

How PoBU gets stronger from here

In the last piece, we talked about what the chain can show today, and what it still cannot show directly. That leads to a very normal question: If the paper already explains PoBU, what does it still want to improve? The paper answers that in its future work section. And

What we’ve covered in the PoBU theme series so far

What we’ve covered in the PoBU theme series so far

As you know, we’ve been breaking the nerdy version of the PoBU paper into small, easy parts. The goal is simple: help you understand PoBU without needing to read it like a researcher. So far, we have covered six themes. Here’s a smooth recap of that: 1) Decentralization

PoBU: What the chain can’t show (yet)

PoBU: What the chain can’t show (yet)

In the last piece, we covered what the PoBU paper measures on a running chain: validator-set breadth and churn, and block-author concentration. Those are chain-derived signals anyone can reproduce. This next theme is about a simple line the paper keeps repeating in different ways: PoBU is about unique humans.But

PoBU, measured on a running chain

PoBU, measured on a running chain

In the last piece, we covered the threat model. The paper lists the main ways a PoBU system can fail or be weakened in practice: issuer concentration, compromise/coercion, availability, and privacy/linkability. Now comes the part many readers care about most: What can we actually measure on a live