# SoftwarePreservationStandard
Information about how the source code is preserved
Implementation of SoftwarePreservation
# Properties
| Property | Definition | Type | Cardinality | ValueFrom |
|---|---|---|---|---|
| identifier | SWHID identifier assigned to the source code in the Software Heritage archive | string (format=url) | 0..1 | |
| idType | Resource ID Type | string | 0..1 |