Level 1 catalogue entry · EV-0901 · audit date 31 October 2026 · inventory version 1.1

FOI / EIR response attachment catalogue

A source-by-source inventory of file attachments identified in the connected mailbox search for Great House Farm / Tŷ Mawr information-rights correspondence.

How to read this inventory

Each occurrence has a stable AR-FOI identifier. Repeated filenames remain separate entries where they came from different response emails. Duplicate binary content will only be deduplicated after SHA-256 comparison of the original files. The context / correspondence category identifies procedure documents, copied email records or enclosures whose role is not the same as a substantive disclosure record.

The 30 July 2026 HMLR Correspondence.pdf entry is priority recovery item AR-FOI-0006. It is the attachment associated with reference WA231076/A/216/SH and N610CGV; HMLR's letter identifies surviving first-registration material for WA231076 and closed title WA240304. That original PDF is not yet in the Cedwyn binary store.

Attachment occurrence register (62)

Scope and exclusions

This pass includes the substantive PDF, office-document, spreadsheet, CSV, image-scan and attached-email files found on the identified FOI/EIR response threads. Inline signature logos, letterhead graphics and other presentation-only images are not treated as standalone evidence artefacts; they remain part of the source email and can be preserved with the full message container. Attachments that appear to be requester-originated enclosures rather than authority-created disclosure material are included but explicitly qualified in their row (for example the Museum Wales 2026-032 timeline filename). The CADW critique and particulars documents attached to an NIO acknowledgement are not described as NIO disclosures.

This inventory now contains 62 distinct attachment occurrences located in mailbox searches through 31 October 2026. Eleven further occurrences (AR-FOI-0057–0067) were added from October authority replies. This is not yet an exhaustive inventory of every relevant message or attachment in all mailbox folders. Further FOI/EIR threads and the remaining mailbox search results still require reconciliation before the scope can be certified exhaustive.

Ingestion protocol

1. Retrieve the original attachment from the source email or request it again from the authority.
2. Preserve the original filename, file bytes, sender organisation, response date, FOI/EIR reference and email locator in restricted provenance metadata.
3. Calculate SHA-256 from the original bytes. Keep different source occurrences even if the bytes later deduplicate to one content-addressed blob.
4. Store the original in Cedwyn's evidence binary store and add a real relative download link to this record. Do not link to an email attachment ID or reconstruct the document from quoted text.
5. Inspect the source, record pagination/content, create a public-safe copy only if redaction is required, and keep the untouched original separately.

Related records: HM Land Registry Forensic Assessment · HMLR correspondence catalogue, Part 6.