x2t.org
Archives hold centuries of material that nobody can search. Scanned minutes, typed correspondence, microfilmed registers, recorded testimony. Until it becomes text it might as well not be catalogued at all.
Turning arbitrary input into readable text is therefore a genuine public-interest problem, not merely a technical one, and the bodies working on it are libraries, records offices and open-government projects rather than companies.
X stands for the unspecified input, which is what makes this address work. The source can be a photograph, an audio file, a PDF or a handwritten ledger, and the name accommodates all of them without promising any one.
That breadth also suits an organisation running several programmes at once, since the identity survives a change of focus.
Three characters, an extension matching the institutions most likely to want it, and a structure that states a purpose rather than a product.
Available now. Enquiries welcome.