SDCL § 43-28-15: Constructive notice of execution of instrument affecting real property to purchasers or encumbrancers subsequent to recording.

The recording and deposit of an instrument, proved and certified according to the provisions of §§ 18-4-17 to 18-4-20, inclusive, and §§ 43-28-8 and 43-28-10, are constructive notice of the execution of such instrument to all purchasers or encumbrancers subsequent to the recording.