Buenos Aires Archives Race to Restore Thousands of Corrupted Digital Images

Buenos Aires city authorities confirmed this week that a systematic review of the Archivo General municipal database uncovered more than 14,000 duplicate or unreadable image files embedded in public records dating back to the 2019 digitisation drive. The discovery has triggered an emergency replacement protocol across at least a dozen public institutions, with a deadline of August 15 to restore full document integrity.

The timing could not be more fraught. Under the Milei administration's ongoing austerity programme, the national culture and heritage budget was cut significantly in the 2025 fiscal year, and municipal technology departments are operating with reduced staff. The corrupted files affect everything from property title scans at the Registro de la Propiedad Inmueble on Avenida Belgrano to digitised artworks catalogued by the Museo de Arte Moderno de Buenos Aires in San Telmo. When records contain blank or duplicate images, legal and administrative processes stall, a real cost for residents and businesses already navigating an unstable economic environment.

What Went Wrong, and Where It Showed Up First

The problem was first flagged in late June by technicians at the Centro Metropolitano de Tecnología, the city's main IT coordination body based in the Parque Patricios technology district. During a routine migration of legacy files to the city's updated cloud infrastructure, automated scripts flagged a high rate of hash collisions, essentially, different documents sharing identical image fingerprints, which indicates either failed uploads or systematic duplication errors during the original 2019 scanning campaigns.

The Biblioteca del Congreso de la Nación on Avenida Entre Ríos, which shares certain digitised historical collections with the city archive, is among the institutions affected. Staff there have reportedly been working extended hours this week cross-referencing physical originals against digital records to identify which images need to be rescanned entirely. The library holds irreplaceable materials including 19th-century municipal maps and photographic collections documenting the construction of the Puerto Madero waterfront redevelopment in the 1990s.

At the Museo de Arte Moderno in San Telmo, the issue is particularly visible: the museum's online catalogue, which draws an average of roughly 8,000 unique visitors per month according to figures the institution published in its 2025 annual report, has been showing broken image placeholders for works in the permanent collection since June 28. Curators have been manually uploading replacement high-resolution scans, a process expected to take at least three weeks given current staffing levels.

The Fix, and What It Will Cost

City technology officials have outlined a three-stage response. The first stage, already under way, involves automated deduplication tools running across the Archivo General's 2.3 million-file database. The second stage, scheduled to begin the week of July 14, requires physical re-scanning of source documents at four priority locations: the Archivo General itself on Avenida Independencia, the Dirección General de Patrimonio in Palermo, the Registro Civil headquarters in Balvanera, and the Centro Cultural Kirchner documentation centre near Puerto Madero. The third stage is a quality-control audit to be completed before the August 15 deadline.

Cost estimates have not been officially published, but the city's 2026 emergency technology contingency fund, set at 180 million pesos at the start of the fiscal year, is the most likely funding source. Given the peso's continued volatility and the IMF programme's fiscal targets, officials are under pressure to keep any supplementary spending within existing allocations rather than seek new appropriations.

For residents and legal practitioners who need certified document copies, the city's official guidance issued Thursday advises checking the Tramitación en Línea BA portal before visiting in person, as many records are being restored in batches by neighbourhood and document type. Notaries working near the Tribunales district on Avenida Córdoba say turnaround times for certified copies have already extended from the standard 48 hours to between five and seven business days. The Centro Metropolitano de Tecnología has published a status tracker, updated daily, listing which record categories have been restored and which remain incomplete.