SEPS:PRISM | M. R. Dwyer M02_Observation_and_Interpretation_Ledgers The observation ledger retains source-linked measurements. The interpretation ledger connects each conclusion to its evidence, alternatives and reviewer. Multiple analyses of one source image do not become independent corroboration. This design implements documentation rules rather than a numerical confidence score. Source: SEPS:PRISM methodology v1.2 Status: public methods figure