# TimestampRequest
**Kind:** OpenAPI schema
**Defined in:** `docs/00-sources/veraetime-openapi.yaml`
## Fields
| Field | Type | Meaning |
|-------|------|---------|
| `data` | `string (required)` | Payload to hash/timestamp |
| `hashAlg` | `string?` | Defaults SHA256 |
## Who constructs it
request body only
## Who consumes it
`POST /api/timestamp`, `middleware timestampService.create`
## Related modules
See `docs/modules/` for the functions that take these types as parameters and the values they return.