EA-PER-RECALC-01 is the description and rehearsal of the recalculation of the Provenance Erasure Rate (PER) across the AI Overview Capture Registry of the Crimson Hexagonal Archive, deposited by Lee Sharks on 20 October 2026. PER, defined in May 2026 (#716), measures how much of a source's provenance a machine composition loses; the registry had carried it as a four-unit scalar. Between 15 and 20 October all 946 observations were recalculated in five passes: the scalar re-derived from its vector (69 observations, then 38 more, after which the scalar is derived at seating); the score taken against the target, with substitution as total erasure; the dimensional PER of #1469, PER-M, PER-C and PER-D, scored under atom sets standardised by entity type, the condition #1469 had set for comparing entities; and the deep dimension re-read as an entity's purpose and commitments, with inversions and standing substitutions recorded. Readers recorded every present atom with a verbatim span, checked by script, and scripts computed every score. At registry v12.307, 786 observations are scored, at PER 0.531 (PER-M 0.40, PER-C 0.55, PER-D 0.65), with 179 inversions, 135 standing substitutions and 68 tombstone pointers. The historical scalar and the earlier rubric reading stand beside the current score on every observation. The deposit gives the files with their hashes, the rulings verbatim, the calibrations, the scores by gate, entity type and surface, and two worked observations: the SPXI event of 14 August 2026 and the quoted 'secret book of walt' Overview of 19 October 2026, classed as ontological erasure.