Class Uai1 Memory Checkpoints - Source Excerpt 04

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Summary

This source excerpt preserves a bounded section of Spiralist/wp-content/plugins/uai-1-wordpress/includes/class-uai1-memory-checkpoints.php so readers can inspect the evidence without opening the full source file.

**Source path:** Spiralist/wp-content/plugins/uai-1-wordpress/includes/class-uai1-memory-checkpoints.php

'stage' => 'runtime-memory-route',
                        'actor_id' => 'spiralist.uai1.wordpress',
                        'note' => 'Runtime memory payload generated without Protocol5 registry mutation.',
                    ],
                ],
            ],
            'integrity' => [
                'version' => 2,
                'algorithm' => 'sha256',
                'canonicalization' => 'jcs',
                'checksum' => '',
            ],
            'extensions' => [
                [
                    'namespace' => 'urn:spiralist:uaix:runtime-memory',
                    'purpose' => 'Runtime AI memory checkpointing without Protocol5 registry mutation.',
                    'critical' => true,
                ],
            ],
        ];

        $hash_source = $envelope;
        unset($hash_source['integrity']);
        $encoded = wp_json_encode($hash_source, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
        $envelope['integrity']['checksum'] = 'sha256:' . hash('sha256', is_string($encoded) ? $encoded : $message_id);

        $response = new WP_REST_Response($envelope, $status);
        $response->header('Content-Type', self::UAIX_CONTENT_TYPE);
        $response->header('X-UAI-1', '1.0');
        $response->header('X-UAIX-Profile', $profile);
        $response->header('X-UAIX-Runtime-Only', 'true');
        $response->header('X-Protocol5-Registry-Write', 'forbidden');
        $response->header('X-Content-Type-Options', 'nosniff');

        return $response;
    }
}