Blockchain Database Technology - Most blockchain databases utilize a Merkle–Patricia trie on top of a key–value store, such as LevelDB or RocksDB [1] - This design introduces extra read lookups, leading to a read amplification problem as the blockchain database expands [1] - SonicDB eliminates the key-value store layer by directly indexing the world state in binary files [1] - This approach avoids read amplification and significantly enhances access time [1]