3d7f7b588b
**What type of PR is this?** Bug fix **What does this PR do? Why is it needed?** This PR fixes a bug in the state diff `getBaseAndDiffChain()` method. In the process of finding the diff chain indices, there could be a scenario where multiple levels return the same diff slot number not equal to the base (full snapshot) slot number. This resulted in multiple diff items being added to the diff chain for the same slot, but on different levels, which resulted in errors reading the diff. Fix: we keep a `lastSeenAnchorSlot` equal to the `BaseAnchorSlot` and update it every time we see a new anchor slot. We ignore if the current found anchor slot is equal to the `lastSeenAnchorSlot`. Scenario example: exponents: [20, 14, 10, 7, 5] offset: 0 slots saved: slot 2^11, and slot (2^11 + 2^5) slot to read: slot (2^11 + 2^5) resulting list of anchor slots (diff chain indices): [0, 0, 2^11, 2^11, 2^11 + 2^5]
Prysm: An Ethereum Consensus Implementation Written in Go
📖 Overview
This is the core repository for Prysm, a Golang implementation of the Ethereum Consensus specification, developed by Offchain Labs.
See the Changelog for details of the latest releases and upcoming breaking changes.
🚀 Getting Started
A detailed set of installation and usage instructions as well as breakdowns of each individual component are available in the official documentation portal.
💬 Need help? Join our Discord Community for support.
🏆 Staking on Mainnet
To participate in staking, you can join the official Ethereum launchpad. The launchpad is the only recommended way to become a validator on mainnet.
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🤝 Contributing
🔥 Branches
Prysm maintains two permanent branches:
master- This points to the latest stable release. It is ideal for most users.develop- This is used for development and contains the latest PRs. Developers should base their PRs on this branch.
🛠 Contribution Guide
Want to get involved? Check out our Contribution Guide to learn more!
📜 License
This project is licensed under the GNU General Public License v3.0.