Fukuoka Block chain 2
Overview
Verify execution
Use "reduction function" to reduct data to 32 bytes and register it to beacon chain
Also can use rollup like mechanism
Beacon chain has merkle tree of state root for shard chains
Each shard chain show merkle proof of state root
This is O(C) maybe per shard or per slot
Phase 1
Phase 2
Account abstraction
State rent
eWasm
We can use many of cryptografy using wasm
zkstark
accumulator
archive accumulators
accumulator is one of the cryptografic technic to realize more compact compression(low proof size than merkle tree under large number of items)
Plasma
Optimistic Virtual Machine as ETH2 phase 2