Journal.cur.sum: def of bend-kit-journal@0.3.1.0
Import: import bend-kit-journal@0.3.1.0/journal.bend as Journal
Lines 266-268 of bend-kit-journal@0.3.1.0/journal.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-journal@0.3.1.0/journal.bend&start_line=266&end_line=268

import Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
import bend-kit-hash@0.3.0.2/hash.bend as Hash

# ponytail: Hash.crc32 builds its 256-entry table per record; share one table if recovery gets hot.
def cur.sum(p: Bytes.Bytes) -> Bytes.Bytes & U32:
  Hash.crc32(p)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=bend-kit-hash@0.3.0.2/hash.bend&name=crc32