META.TXT--powered by TXT--stores the global metanet graph in a single file, and provides an instant API.
The txt.db file is stored as a self contained SQLite file (powered by http://txt.network) . The goal is to store only the graph structure in order to keep it minimal.
metatxt is powered by Bitcache, which filters the blockchain using Bitbus and Bitsocket and caches the data to TXT.