This Authority is issued by the Chief Archivist under section 229(2) of the Contract and Commercial law Act 2017.
Checksums are a tool which allows a "chain of custody" to be established between those who create, preserve, and access digital information and records.
Under the Contracts and Commercial Law Act 2017 (CCLA) and the Public Records Act 2005 (PRA), public offices and local authorities have conditions to meet before destroying the source information after converting to electronic form (referred to in this Guide as “digitisation”).
We know that public offices and local authorities want the ability to manage information and records digitally instead of in paper (or other) form for various reasons. Digitisation enables this.
Update to blog text: the Contract and Commercial Law Act 2017 has replaced the Electronic Transactions Act 2002 - there was no substantive change related to digitisation. The guidance has been updated to include reference to the new Act and a new blog was published,
You may have noticed that new legislation, the Contract and Commercial Law Act 2017 (CCLA), came into effect on 1 September 2017.