Property:Foaf:mbox sha1sum

This attribute represents the property imported from::foaf:mbox_sha1sum, "imported" into SMW by the special mapping MediaWiki:smw_import_foaf. This publishes a hash for someone's email address without revealing the address to spammers. The SHA1-hash needs to be generated externally with some appropriate tool.

Test
Let's try restricting values of this imported property to:
 * allows value::a, allows value::b, allows value::7074170ebe54951b0bf4d8d8f5dcc5014c53bed1