According to BlockBeats, on January 7, the Solana Foundation introduced proposal SIMD-0215, aiming to expand Solana's infrastructure to accommodate billions of user accounts. This proposal includes the addition of a new hash called the 'Accounts Lattice Hash.'
The 'Accounts Lattice Hash' employs homomorphic hashing to maintain a hash of the entire account state, ensuring both rapid updates and security. This approach allows for each block to contain hashes of all accounts, not just those altered within the block, and facilitates the removal of the Epoch Accounts Hash.