Hundreds of previously redacted records reveal how Amazon has put pressure on independent sellers using its platform into raising their prices on the sites of competitors such as Walmart and Target, so that Amazon can appear to have lower prices, California authorities allege.

The global conglomerate became concerned even if a competitor was selling an item for as little as a penny less, according to one segment of the newly unredacted evidence.

The documents – which have never previously been reported on – include internal emails, deposition testimony and confidential corporate presentations that the California attorney general, Rob Bonta, obtained as part of a civil case his office launched in 2022 accusing Amazon of large-scale price-fixing.

The Guardian obtained and reviewed the cache of evidence, which has been filed in San Francisco county superior court but has not yet become publicly available. Within the documents, lawyers for the state of California have unmasked key details, paragraphs and sometimes whole pages that had previously been blacked out. A judge permitted some redactions to remain at Amazon’s request.