# egg — writing

> Writing on crypto, cryptography, distributed systems, and whatever else is on my mind.

Generated from public posts only. Private and draft posts are omitted.

## Canonical Sources

- [Homepage](https://blog.eggtech.io): Public writing index.
- [Full Markdown archive](https://blog.eggtech.io/llms-full.txt): All public posts in one Markdown document.
- [RSS feed](https://blog.eggtech.io/feed.xml): RSS 2.0 feed for public posts.
- [JSON feed](https://blog.eggtech.io/feed.json): JSON Feed 1.1 feed with post metadata and Markdown content.
- [Sitemap](https://blog.eggtech.io/sitemap.xml): Public HTML pages and machine-readable feeds.

## Posts

- [Introducing fast-fill: instant cross-chain transfers on the bridge you already trust](https://blog.eggtech.io/posts/announcing-fast-fill/index.md): A thin optimistic-fill layer on Circle CCTP v2 and LayerZero OFT: funds in seconds when a relayer fronts them, and never worse than the bridge if no one does. No escrow, no liquidity pool, no new trust assumption. Proven on mainnet.
- [Cheap Parallel EVM Simulation for Searchers](https://blog.eggtech.io/posts/parallel-evm-simulation/index.md): Three Rust crates that give MEV searchers a small runtime — a forked-EVM state cache, reactive oracle adapters, and AMM state — to run thousands of parallel liquidation simulations against real protocol bytecode without RPC round-trips.
- [Systematic ETH Tail-Risk Trading on Polymarket](https://blog.eggtech.io/posts/eth-tail-risk-polymarket/index.md): A trading system that prices ETH strike markets on Polymarket against a Binance-derived move distribution, sizes exposure to an ETH risk budget, and runs the full discovery-to-settlement loop.
- [Single Sign: One Visible Signature, Many Verifiable Digests](https://blog.eggtech.io/posts/single-sign/index.md): Aggregate many signature requests into one visible message the user signs once, then use RISC Zero proofs to show any individual EIP-712/191 digest came from that signed data — ERC-1271-compatible, so protocols validate digests with no extra popups.
- [Verifiable NFT Composition from IPFS Token URIs](https://blog.eggtech.io/posts/verifiable-nft-composition/index.md): A RISC Zero zkVM app that proves an NFT's off-chain IPFS metadata matches its on-chain tokenURI, then composes verified NFTs into new ones — our Best ZKVM Application winner at ZKHack Montreal.