From the Bitcoin bubble: zkCoins

kranzj · June 3, 2023, 7:39am

I just ran into this here:

gist.github.com

https://gist.github.com/RobinLinus/d036511015caea5a28514259a1bab119

zkCoins.md

# zkCoins
 
*zkCoins* is a novel blockchain design with strong privacy and scalability properties. It combines client-side validation with a zero-knowledge proof system. The chain is reduced to a minimum base layer to prevent double spending. Most of the verification complexity is moved off-chain and communicated directly between the individual sender and recipient of a transaction. There are very few global consensus rules, which makes block validation simple. Not even a global UTXO set is required.

In contrast to zk-rollups there is no data availability problem, and no sequencer is required to coordinate a global proof aggregation. The protocol can be implemented as an additional layer contained in Bitcoin's blockchain (similar to RGB[^5] or Taro[^6]) or as a standalone sidechain.

The throughput scales to hundreds of transactions per second without sacrificing decentralization.

## Design Principles
The core design principle is to *"use the chain for what the chain is good for, which is an immutable ordering of commitments to prevent double-spending"* [^1]. This means two things:

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This may or may not be similar / equal to Shielded transaction aggregates · Issue #4946 · zcash/zcash · GitHub, but in any case, it seems absolutely cool.

Someone smarter than me, please comment :).

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From the Bitcoin bubble: zkCoins

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