---
id: 1628
title: "The Engineer’s Guide to Blockchain Finality"
source_domain: blog.trailofbits.com
source_url: "https://blog.trailofbits.com/2023/08/23/the-engineers-guide-to-blockchain-finality/"
published_at: "2023-08-23T11:00:53Z"
tags: ["web3", "vulnerability-disclosure", "blockchain", "trail-of-bits", "ethereum", "finality", "reorg", "double-spend", "l2"]
phying_url: "https://phying.com/item/1628"
lang: en
---

# The Engineer’s Guide to Blockchain Finality

## Summary

Trail of Bits explains re-orgs and finality mechanisms across blockchains, the double-spend risks of relying on block delays, and finality bugs found in the Juno and Pathfinder L2 clients.

## Intelligence Metadata

- **Sources:** blog.trailofbits.com
- **Published:** 2023-08-23T11:00:53Z
- **Original:** https://blog.trailofbits.com/2023/08/23/the-engineers-guide-to-blockchain-finality/
- **Phying News:** https://phying.com/item/1628