add consistent hash proposal

[bfforever]

What type of PR is this?

What this PR does / why we need it: add consistent hash proposal

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 48.91%. Comparing base (68d7f31) to head (6702e6a). Report is 4 commits behind head on main.

see 1 file with indirect coverage changes

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