How Melbourne's Public Art Archive Ended Up Full of Duplicates — and What It Took to Fix It

Victoria's network of public art institutions has spent the better part of three years replacing duplicate digital images embedded across municipal archives, gallery databases and heritage registers — a quiet but costly remediation effort that grew directly out of a 2023 audit of the state's cultural digitisation programs.

The problem matters now because the Allan government's broader Creative Victoria strategy, which ties grant funding to verified digital asset catalogues, is entering an enforcement phase in mid-2026. Institutions that cannot demonstrate clean, non-duplicated image records risk losing eligibility for infrastructure grants under the program's next funding round, which opens in August.

How the Duplication Problem Accumulated

The origins are not mysterious. Between 2015 and 2022, at least four separate digitisation initiatives ran concurrently across Melbourne without a shared metadata standard. The City of Melbourne's own collection digitisation project, centred on the Melbourne Museum precinct in Carlton, operated on different file-naming conventions than those used by the Victorian Collections platform, which serves more than 600 collecting organisations statewide. The NGV's internal asset management system — overhauled in 2019 — imported legacy files that had already been catalogued, sometimes twice, under earlier systems. Regional galleries in Bendigo and Ballarat then uploaded images drawn from shared travelling exhibition catalogues, creating further cascading duplicates.

By the time the 2023 audit was commissioned, Victorian Collections alone held an estimated tens of thousands of image records flagged as potential duplicates, though the precise count was not publicly released. The audit, completed in the first quarter of 2024, recommended a phased duplicate-image replacement protocol — essentially, a systematic process of identifying canonical master files, retiring redundant copies and rebuilding cross-institution links to point at the authoritative version.

Fitzroy-based digital preservation consultancy Arkwright Digital was among the firms brought in to assist smaller institutions that lacked in-house capacity. The State Library Victoria on Swanston Street, which holds reference images for tens of thousands of heritage items, began its own internal review in late 2023 and completed the first phase — covering photographic prints digitised before 2018 — by March 2025.

The Cost of Getting It Wrong

Duplicate images are not merely a storage nuisance. When two versions of the same work carry different metadata — different dates, different creator attributions, different rights statements — both versions can enter public circulation through API feeds that power everything from school education portals to tourism websites. The Victorian Heritage Database, managed by Heritage Victoria and accessible to developers building planning tools, had at least one documented case in 2024 where a duplicate image carried an incorrect copyright status, creating a licensing liability for a third-party app that had ingested the feed.

The practical fix is labour-intensive. Each flagged duplicate requires a human decision about which file is the authoritative master. Automated hash-matching tools — which compare pixel data to identify identical or near-identical files — can narrow the field, but they cannot resolve conflicts in metadata without editorial judgment. For large collections, the cost of that editorial work runs into hundreds of hours per institution.

The City of Yarra, whose own collection includes street-art documentation from Hosier Lane and archival photography from the inner-north suburbs, allocated $180,000 in its 2024–25 budget to address data quality across its cultural asset registers, according to the council's publicly available budget documentation. That figure covered both duplicate resolution and broader metadata remediation.

Institutions still working through their backlogs have until October 31 this year to register compliance with Creative Victoria's asset integrity requirements — or formally apply for a 12-month extension. The National Trust of Australia (Victoria), based in South Melbourne, confirmed in a public statement earlier this year that it was on track to meet the deadline for its photographic archive. Smaller regional collecting organisations, particularly those relying on volunteer cataloguers, face a harder road. The practical advice from practitioners who have completed the process is consistent: start with the collections most likely to appear in public-facing feeds, resolve those first, and document every decision in a change log that auditors can follow.