CA Civ Code Section 8608

(a)

This title does not give a claimant a right to recover on a direct contractor’s payment bond given under this chapter unless the claimant provided work to the direct contractor either directly or through one or more subcontractors, pursuant to a direct contract.

(b)

Nothing in this section affects the stop payment notice right of, and relative priorities among, design professionals and holders of secured interests in the real property.