21 Pa. Stat. § 387
Any release or other instrument of writing, being evidence of the payment or release of any legacy or recognizance charged upon lands or tenements within this state, that have been, or may hereafter be made out of this state, or within the same, and which shall have been duly acknowledged, or the execution thereof proved in the manner provided by the existing laws for the acknowledgment and proof of the execution of deeds or other instruments of writing, concerning any lands or tenements and hereditaments, in order to authorize the same to be recorded, may be recorded in the office for the recording of deeds in the county where such real estate may be situate, and copies or exemplifications of such releases or other instruments of writing, acknowledged or proved and recorded as aforesaid, being examined by the recorder, and certified under the seal of his office, which the said recorder is hereby required to do, shall be allowed in all courts where produced, or elsewhere, and are hereby declared to be as good evidence, and as valid and effectual in law as the original instrument of writing would be, if duly proved, and the same may be made use of accordingly.
21 P.S. § 387