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Close gain-0 free-crown gap with persistent high-water mark - #76
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bitzic
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Jun 28, 2026
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- ChainInterface: get/set_high_water_mark persist last king's bar to chain_dir/high_water.json, NOT removed by clear_king
- service.score_and_decide + router.process_submission: when king record is gone, score the challenger vs the persisted bar (must decisively beat)
- is_first true ONLY at genuine genesis (no king AND no high-water mark)
- record the bar on every crown (run_epoch + router), not on reinstate-demotion
- tests: bar survives clear_king; cleared-throne gain-0 rejected; genesis crowns once; decisive challenger still crowns
- ChainInterface: get/set_high_water_mark persist last king's bar to chain_dir/high_water.json, NOT removed by clear_king - service.score_and_decide + router.process_submission: when king record is gone, score the challenger vs the persisted bar (must decisively beat) - is_first true ONLY at genuine genesis (no king AND no high-water mark) - record the bar on every crown (run_epoch + router), not on reinstate-demotion - tests: bar survives clear_king; cleared-throne gain-0 rejected; genesis crowns once; decisive challenger still crowns Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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