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c84ea299cryptonote_basic: some more minor speedups (moneromooo-monero)e40eb2adcryptonote_basic: speedup calculate_block_hash (moneromooo-monero)547a9708cryptonote: block parsing + hash calculation speedup (moneromooo-monero)11604b6dblockchain: avoid unneeded block copy (moneromooo-monero)8461df04save some database calls when getting top block hash and height (moneromooo-monero)3bbc3661Avoid repeated (de)serialization when syncing (moneromooo-monero)