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Most blockchain clients have a DB with a cached version of the chain. This is typically done with a typical, off the shelf DB. For example Bitcoin Core uses Lev
by dgrin91 6y ago
Most blockchain clients have a DB with a cached version of the chain. This is typically done with a typical, off the shelf DB. For example Bitcoin Core uses LevelDB, but other implementations use SQL lite.
As I said at the end, blockchain isn't really what OP wants. It meets his requirements mostly via technicalities.