Verify with T3Vault CLI

T3Vault ships an integrity verifier that re-hashes artefacts and checks the OpenTimestamps receipt (via ElephStamp).

This is the recommended check before restore: it needs no Bitcoin node and answers whether the backup files still match integrity.json. For an optional independent check of the .ots file with the official client, see Manual verification with the OpenTimestamps client.

Usage

From a development checkout:

php t3vault/cli/t3vault-verify.php [--json] [--quiet] [--lang=de|en] <backup-dir>

Or with the offline PHAR (built into the package under Installer resources):

php t3vault-verify.phar [--json] [--quiet] [--lang=de|en] <backup-dir>

Example:

php t3vault-verify.phar \
  /var/www/html/var/t3vault/backups/backup_20251117_143022_a3f8b2c1

Options:

Option	Description
`--json`	Print the full result object as JSON
`--quiet`	Suppress human-readable output (exit code only)
`--lang=`	`de` or `en` for messages

Exit codes:

Code	Meaning
0	`ok`
2	`pending` / `stamp_failed` / `missing`
1	`tampered` or fatal error

Note

The CLI also accepts --upgrade (ask calendars to complete a pending proof). That is unrelated to detecting file changes and is not needed for the usual pre-restore check.