Technology Innovation - SALT eliminates the bottleneck of updating state roots beyond what re-implementations can achieve [3] - A new data structure, codenamed SALT, was created, improving upon the EVM's MPT [3] - MegaETH has key innovations pushing scalability to the extreme [3]

Technology & Performance - Ethereum clients spend 10x more time updating Merkle trees than executing transactions, with 1 second processing and 10 seconds updating proofs [1] - SALT technology achieves 87 thousand updates per second in benchmarks, scaling to tens of billions of items, while the authentication layer fits in 1GB of RAM [1] - MegaETH Labs can achieve near-instant transaction execution due to SALT's performance, executing trades in milliseconds [1] - SALT decouples authentication from storage, using regular RocksDB for data storage, resulting in zero random disk I/Os for authentication [1] Innovation & Architecture - SALT addresses the sparsity issue in Merkle trees, where deeper levels are mostly empty, by decoupling authentication from storage [1] - SALT allows developers to build compute-intensive applications without state access being a bottleneck, enabling on-chain ML models [1] Implementation & Testing - SALT has been running live on testnet since March [1]