He shall have the custody of the state seal; and copies of records and papers in his office, certified by him or his deputy and authenticated by the state seal, shall be evidence in like manner as the originals.
N.H. Rev. Stat. Ann. § 5:5
Seal; Certification
Source
Official source: New Hampshire General Court. Reproduced from public-domain New Hampshire statutes; confirm against the official source for the current text. Not legal advice.