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ci: share independently verified Sigstore second-run guard (READ ONLY) - #23

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ShutenOishi merged 1 commit into
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security/issue75-second-sigstore-check
Oct 23, 2026
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ShutenOishi merged 1 commit into
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security/issue75-second-sigstore-check

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Issue pgextwin/build#75. One-line immutable update-watch.yml SHA repin from central @304cd5d4 to protected/postmerge SUCCESS build main @069eca1a2ac09f01cab86452cf1eb24feda4dfc4 (PR #239). Reuse pgtap #38 protected main and original push CI success. Shared separate hosted read-only verifier re-downloads original signed ZIP/SPDX/Grype, runs REAL gh attestation verify for pinned signer SLSA+SPDX, matches per-major SHA256 and exact main Run attempt; no new App/Secret, no write permission or unattended Publisher release. Preserve exact manual-only, PUBLISH_DENY, GO B/G4/G5 NO_GO. Regular Windows CI does not count as real signed candidate crypto E2E. Strict PR App15368 PG14–18/resolver/summary, normal protected merge, real main/push checks. Do not circumvent pg_bigm #46 safety restriction.

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ShutenOishi merged commit 29e2776 into main Oct 23, 2026
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