I read this as execution of the immutable Task26 Gate19 validation - I’ll identify the established gate harness and prior 45-node receipt, verify the pinned candidate before and after, run the required disposable/network-denied adversarial extensions, and append the Gate19 receipt without touching prohibited assets.


I’ve confirmed the predecessor Gate19’s exact 45-node matrix and two archive-boundary assertions. The new successor changes only `gateway/status.py`, so I’m now binding the added direct authority-file regression nodes that exercise preservation, stale cleanup policy, PID identity, lock ownership, deceptive status, and cancel/restart semantics rather than relying on the unchanged predecessor matrix alone.


The execution set is now fixed: the unchanged 45-node predecessor matrix, all 73 direct `test_status.py` authority/lifecycle nodes (covering every requested edge without inventing new test code), and the two immutable archive-boundary verifier assertions. I’m starting the single network-unshared, read-only-root run with tmpfs HOME/TMP/cache and pre/post candidate authentication.


The isolated run passed all 118 executable nodes in one invocation (`45` predecessor + `73` direct authority/lifecycle), with zero failures, skips, warnings, or stderr; both archive assertions also passed, for 120 required PASS results. Candidate authentication and the 26-entry tree digest are byte-identical pre/post. I’m archiving the node-level matrix and hashes, removing the disposable cache, then creating the exclusive append-only receipt.


I read this as reporting the completed Gate19 validation - I’ll provide the verdict, coverage, and receipt authority.

**Gate19 PASS** for immutable digest `653cc2f0b47873e95f985ea3eb32b8f2c044d6de64cd9e8fe37ebcec67c7a723`.

- 45 prior adversarial nodes: PASS
- 73 direct authority/lifecycle nodes: PASS
- 2 archive-boundary assertions: PASS
- Total: 120/120 required results PASS
- Pytest: `118 passed in 1.28s`
- Candidate pre/post verification and tree hash: identical
- Network denied with bwrap; read-only root and disposable caches
- Disposable execution tree removed
- No prohibited actions or mutations

Receipt:

`.omo/evidence/task26/task26-gate19-653cc2f0b47873e95f985ea3eb32b8f2c044d6de64cd9e8fe37ebcec67c7a723-receipt.json`

Receipt SHA-256: `00bdaf0186437e9b93ca9fe2badd3f6a4db5fd8c4cf5b69c66135bb7245fd688`

Matrix SHA-256: `ec319ee060d942722c3bdd93b616cbe79186cd35302f78051591761227699dc6`