DC-Services — Digital Claims Services Limited

Record Integrity · 9 May 2026 · 6 min read

Version Control for Amended Documents Inside a Sealed File

An amended document does not replace the original. The file retains both versions with a documented relationship between them.

Version Control for Amended Documents Inside a Sealed File

Documents inside a sealed file are sometimes amended after sealing. A corrected statement, a re-issued reference letter, or a revised contract enters the file as a new version. The original version is not overwritten. Both versions remain, with a recorded relationship between them.

The relationship is recorded as a supersession entry. The new version names the version it supersedes, the date of supersession, and the reason given by the issuing institution. A reviewer can therefore see which version was authoritative at any past date without inferring the change.

Hashes are computed for each version separately. The hash of the superseded version remains valid as a fingerprint of that version, and the new hash fingerprints the replacement. The two are stored side by side so that integrity checks against either version remain meaningful.

Reasons for amendment vary. A typographical correction by the issuer, a recalculated interest figure, or a re-issued document on the institution's headed paper each carry different weight, and the file records the reason category alongside the supersession entry for later review.

Self-corrections by the client are recorded as a distinct category. Where the client provides an updated narrative or a revised cover note that accompanies the institution's documents, the self-correction is filed separately and clearly labelled rather than merged with institutional records.

Audit-log entries for amendments name the operator who filed the new version and the operator who approved the supersession. Two-stage approval applies to amendments as it does to original filings, so a single operator cannot insert a replacement document without independent review.

Where the issuing institution declines to issue an amended document, the file records the request, the response, and the gap. A reviewer can then see that the absence of an amendment is the institution's position rather than the engagement's oversight or the client's choice not to ask.

Our scope is to maintain the version record across the documents the client provides. We do not request amendments from institutions without written authority, do not negotiate the wording of a re-issued document, and do not represent the client in any dispute over an amendment refusal.

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