Mithril
Stake-based threshold signatures enabling fast light clients — v1.0 mainnet
What is Mithril?
Mithril is a stake-based threshold multi-signature protocol for Cardano that enables fast, trustless light clients and blockchain bootstrapping. By allowing stake pool operators to collaboratively sign certified snapshots of the blockchain state, Mithril lets new nodes sync in minutes instead of days — a fundamental improvement to Cardano's accessibility.
Key Features
Fast Node Bootstrapping
New Cardano nodes can use Mithril-certified snapshots to sync from genesis to current chain tip in minutes rather than the days required for full chain replay.
Trustless Light Clients
Mithril enables light clients that can verify Cardano state without downloading the full blockchain, opening the door for mobile wallets and embedded devices with minimal trust assumptions.
Stake-Based Threshold Signatures
Mithril certificates are signed by a threshold of stake pool operators weighted by their stake — inheriting Cardano's existing security model for signature validity.
v1.0 Mainnet Live
Mithril is live on Cardano mainnet and actively used by node operators to accelerate blockchain synchronization.
How to Use Mithril
- 1
As a node operator: install the Mithril client and use certified snapshots for fast sync
- 2
Download the Mithril client from mithril.network
- 3
Run mithril-client snapshot list to see available certified snapshots
- 4
Run mithril-client snapshot download to download and verify the latest snapshot
- 5
Bootstrap your Cardano node from the verified snapshot
Frequently Asked Questions
What problem does Mithril solve?
Syncing a new Cardano node from scratch takes days because it must replay every transaction since genesis. Mithril lets nodes start from a cryptographically certified recent snapshot, reducing sync time to minutes.
Is Mithril secure?
Yes. Mithril certificates require a threshold of SPO signatures weighted by stake — the same security model underpinning Cardano's consensus. Forging a Mithril certificate would require compromising a majority of Cardano's stake.
Does Mithril affect regular ADA users?
Mithril primarily benefits node operators, light wallets, and developers. For regular users, the indirect benefit is faster, more accessible wallet syncing as wallets adopt Mithril-powered light clients.
Who developed Mithril?
Mithril was developed by IOG as part of Cardano's scaling roadmap. It is open source and governed as part of the broader Cardano ecosystem.