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noema/migrations/0017_evidence_provenance.down.sql
T
Andy Dixon 0071658c93 feat(evidence): record provenance and stop derived evidence counting as corroboration
Every evidence row now records its derivation (direct, assertion, operator,
external, prediction, consolidation, inference, reflection, dream,
retrieval), its independent-source family (an actor, an integration, an
operator, a prediction) and its root event or memory ids. Confidence
groups evidence by family: the strongest primary item counts in full, each
further primary item adds a quarter, capped at 1.5x, and derived items
count only when the family has no primary member. Three derived
re-expressions of one utterance therefore weigh exactly what the utterance
weighs, while three independent families still add up.

Producers (conversation, association, consolidation, predictions,
metacognition, dreaming, operator and seed input, contradictions) supply
their ancestry. Existing rows are marked legacy_unknown with family =
source; nothing is invented. The belief page shows per-family
contributions and the replay test checks that provenance is reconstructed
identically in the sandbox. Migration 0017 is additive.
2026-07-31 21:14:52 +01:00

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SQL

DROP INDEX IF EXISTS belief_evidence_family_idx;
ALTER TABLE belief_evidence
DROP COLUMN IF EXISTS provenance_status,
DROP COLUMN IF EXISTS root_ids,
DROP COLUMN IF EXISTS family,
DROP COLUMN IF EXISTS derivation;