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Based on Satoshi's paper here - https://bitcoin.org/bitcoin.pdf though blocks have proof-of-work transactions do not. The code here checks the POW on the transactions as well - https://github.com/izqu…
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### Pitch
Let users complete proof of work in order to post to make massively spamming a costly activity.
### Motivation
[mCaptcha](https://github.com/mCaptcha/mCaptcha), an open source no-captcha …
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### Specification
As per #148 we applied some rate limiting mechanisms for preventing amplification attacks. But to truly protect against this we need to implement a simple proof of work for making…
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The idea is to build a proof of work signed extension to optionally allow free txs on chain if a user client side PoW.
### Flow
* User first creates a PoW proof using items in their transaction…
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Proof circuits work on a set number of chunks of given size, both of which are parameters that can be tweaked. We'd like to put together a benchmarking suite that allows us to understand how fast they…
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## ChatGPT Authentication Changes
**Description:**
ChatGPT's authentication mechanism has been updated, making it significantly harder to bypass security measures using previously known technique…
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The POWCO team migrated from a private chat server over to BitChat. This was great.
However, it didn't take long before a nonsense-talking spam poster appeared and filled up our chat window with di…
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as evidenced by https://github.com/google/kctf/pull/96 our logic wasn't very robust
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I was trying to do a one-person stress test and I had the PROOF app open in 3 browser tabs. I had a proof server running and I was logged into each tab and I had uploaded a simple WDL to each in the S…
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Since 2019, European countries issue ID cards according to a [harmonized standard](https://en.wikipedia.org/wiki/National_identity_cards_in_the_European_Economic_Area_and_Switzerland#New_European_Unio…