One Thousand and One Conjectures

This joins Mesopotamian glyptic art to the economics of security. A cylinder seal was its holder's signature, and like any signature it invited forgery; the defence was engraving complexity, since an intricate scene costs a forger far more to copy than a…

Joins the economics of luxury counterfeiting to Japanese sword connoisseurship. Counterfeiters allocate effort where brand equity is highest — today's fakes concentrate in the top handbag brands, not the mid-market — because the payoff to a forged label scales with the premium…

This connects the well-known devaluation of the ijaza into a formality with the rhetoric of the document itself. As real audition decayed into blanket and even to-whom-it-may-concern licenses, the certificate lost evidentiary content; the conjecture is that the parchment compensated. Neither the…

Between the fluent and the letterless, the papyri record men who subscribe 'writing slowly' (bradeos graphon) — a competence just sufficient for a name and a formula. Slow writing was costly to display, so it should be spent where an autograph carried…

Many papyrus letters are baffling stubs — 'send the cloak; I wrote to you before' — unless the sheet was only the durable half of a delivery whose real payload was the carrier's mouth. Where a trusted, named carrier went, detail could…

This conjecture joins the heresiology of the 1270s condemnations to plain citation counting: the density of authorities in a scholastic article tracks institutional risk, not intellectual difficulty. On topics where a determination might attract censure, such as the eternity of the world…

This conjecture claims scholastic diligence was tactically allocated: when writing against an opponent, a master re-verified the opponent's proof-texts in full copies, because a misquoted enemy loses the debate, while continuing to take his own side's supporting authorities on anthology trust within…

The wax seal and the witness list were the two proof technologies carried by the same single-sheet deed, and this conjecture treats them as substitutes with a measurable exchange rate. As sealing spread down the English social ladder in the twelfth and…

This conjecture joins the purported dates written into forged charters with the shape of the forging house's own genuine holdings. The claim is that forgers dated their fabrications into the decades from which their archive held few or no authentic documents —…

This conjecture joins forgery to risk management: whose name do you dare to fake? A diploma attributed to a living ruler or his recent line could be checked against a functioning chancery, its personnel, and its registers; a diploma of a long-extinct…

The chirograph — a deed written out twice on one sheet and then cut apart in a wavy or lettered line, so the matching halves authenticate each other — is a physical checksum, and this conjecture joins the choice of that format…

Scribal colophons sometimes certify a copy's pedigree: written according to an old original from Babylon, checked and collated. Historians of the art and relic trades know that provenance claims proliferate exactly when authority is contested and buyers are nervous. The conjecture: colophonic…