Doug Colkitt, founder of the Decentralization Exchange protocol ambient, posted on the X platform: "Ethereum is the only chain that has a long-term plan to solve state bloat. The Verkle tree allows witness data to be small enough to be attached to each block. This means that validators and Nodes can become stateless, and all state can be stored off-chain (more efficiently). ”
In response, Andre Cronje, director of the Fantom Foundation, said: "Any chain that uses probabilistic finality or any variant of the law of the longest chain will not solve this problem. But I'm pretty confident to say that we've solved Fantom's state bloat problem.
The first is aBFT Consensus, which does not require the law of the longest chain, and after the 2n+1/3 validator knows the previous knowledge of 2n+1/3, we truncate all the data needed to reach this state before. This means that we can get rid of everything before the 2 epoch state.
Next up is our new DB Carmen, Flat Storage, which has no tree or tree structure while maintaining the world-state cryptographic signature, which further greatly reduces the current active state bloat (2 epochs).
Finally, Carmen natively supports real-time pruning, and the archive Node still needs to keep everything, but most validators can run with pruning enabled.
Using the above method has reduced our status from about 2TB (archive) to 60GB (archive). Since our inception, state expansion has been one of our core milestones. ”
