References 368% CONFIDENCEOverall confidence: 68%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]50%
  trip.com/restaurant/china/haikou/detail/hefugui-seafood-hotpot-149689029/?curr=CNY

  trip.com· Posted Oct 12, 2026· Starts Jan 24, 2025 ✓· 33% of score

  Operating-by upper bound supported by a dated customer review on 2025-01-24. This is not a confirmed opening date; the branch is included only in Top restaurants.

• [2]80%
  Chinese branch listing and menu evidence

  you.ctrip.com· Added Oct 12, 2026· 33% of score

  Corroborating branch listing; any inaccessible page or unpublished operator prices are recorded in research notes.^[1]

• [3]75%
  Date evidence for guide pin

  trip.com· Added Oct 12, 2026· 33% of score

  Operating-by upper bound supported by a dated customer review on 2025-01-24. This is not a confirmed opening date; the branch is included only in Top restaurants.^[1]

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