New Gorhambury·Baconian Ciphers

One-Day Report · Biliteral Cipher · October 12, 2026

This project spends its days checking other people’s claims. Today it checked its own. The front page said Book VI of De Augmentis gave the world binary code, steganography and telecommunications; asked plainly whether that is historically accurate, the answer is no. Torches carried letters in Polybius around 150 BCE, and he credits two men before him. Concealment was a named art in print seventeen years before Bacon published. Binary patterns were enumerated in antiquity. What has no precedent is the union of the three in one place — a message reduced to a fixed-length binary code, carried by any medium capable of two states, concealed in the carrying. Three entries were rewritten, and the broadest causal sentence on the site is gone.

A record of one day’s work · findings may be superseded by later reports
A timeline from Polybius about 150 BCE to Leibniz in 1679, with Bacon's De Augmentis of 1623 marked.
Two of the three were not his. The third needed narrowing.

Cryptographic audit · abstract

Bounding the two-form claim

A calibrated separation test on 149 lower-case italic b from the Shakespeare First Folio, measured against Riverbank’s own stated characteristics

Elizabeth Wells Gallup’s The Bi-literal Cypher of Sir Francis Bacon (1900–1910) reports several hundred pages of concealed narrative recovered from the italic type of early printed books, on the premise that each italic letter belongs to one of two distinguishable founts. The validity of the decipherment rests entirely on a prior step — assigning each printed glyph to one of two classes — for which Gallup published no reproducible rule. We locate that disclosure precisely. In the 463-page third edition (Howard, 1901; collated 95 + 368 pp.), the whole of Part I offers a single sentence of classification guidance, on page 2, naming no feature and directing the reader to “educate the eye”; the terms a-form and b-form do not appear in the volume. Feature-level description exists only in Riverbank’s Hints to the Decipherer (1916), published fifteen years after the results it would govern, and specifies five characteristics: the a-form is “larger, rounder, more upright, and more robust,” while of the long-tailed letters the b-form “slopes more and has longer flourishes.”

We construct an open corpus of 174 lower-case italic b, 149 of them with measurable counters, drawn from 41 First Folio pages. Glyphs are segmented with Tesseract under letter identities supplied by an independent transcription rather than by recognition, and screened twice: against Riverbank’s own two b exemplars, scored on the better of the two and never on their difference, and against the intrinsic geometry of the letter. We then apply projection pursuit with Hartigan’s dip as projection index, validated by fitting on half the corpus and scoring the held-out half against randomly chosen directions, and we calibrate its sensitivity by planting each of Riverbank’s five characteristics at known magnitude into half the glyphs.

The blind search detects no two-mode structure: one significant result in 36 held-out tests across two independent runs, with a held-out dip of 0.029–0.031 that randomly chosen directions exceed in 62% of draws. Calibration places the detection threshold at 7% in overall size, 13% in tail length and 6 degrees of slant, bounding any real difference between two forms of b in this corpus below those values. Two of the five characteristics — stroke weight and bowl roundness — proved undetectable at any magnitude tested, including changes of 60% and 55% respectively. We attribute this to the representation rather than to the Folio: height registration normalizes size and weight information away, and no linear projection over pixel values can express curvature. We report the gap explicitly and specify the measurements required to close it.

The result bounds rather than refutes the two-form claim, for one letter, in one corpus, under one instrument. It does not address the biliteral cipher as a system, which is sound, nor Gallup’s conclusions regarding authorship. Corpus, screening criteria, planted-characteristic battery and analysis code are released in full.

Keywords — historical cryptography; Baconian biliteral cipher; Elizabeth Wells Gallup; Riverbank Laboratories; document image analysis; glyph segmentation; projection pursuit; Hartigan’s dip; unimodality testing; detection calibration; Shakespeare First Folio.

More Info

Uncheck anything you would rather not read

A  Plain answers

The short version

This project spends its days checking other people’s claims. Today it checked its own, and three of them did not survive.

The front page of this site said that Book VI of Bacon’s De Augmentis gave the world binary code, steganography and telecommunications. Asked plainly whether that is historically accurate, the answer is no. Each of the three has a clear precedent, and two of them are not close.

Today’s result in one sentence. Torches carried letters in Polybius around 150 BCE; concealment was a named art with a printed literature before Bacon published; binary patterns were enumerated in antiquity. What has no precedent is the union of the three in one place — a message reduced to a fixed-length binary code, carried by any medium capable of two states, concealed in the carrying.
What changed on the site. Three entries in the signature lists were rewritten to claim only what is actually Bacon’s, and the strongest causal sentence on the page — “This brought forth the Internet” — is gone.

Questions

What is the biliteral cipher?

Sir Francis Bacon described it in 1623. Every letter becomes a group of five symbols, each symbol either an a or a b — five binary digits, three hundred years before anyone called them that.

The two symbols need not be letters. They can be two founts of type so similar that a reader notices nothing. The system is sound; nothing here disputes it.

What did you check today?

This site’s own front page. It carries two lists of twenty things Bacon started that are still running, and three of those entries amounted to priority claims — that he gave the world binary code, telecommunications and steganography.

A priority claim is the easiest kind to check and the easiest kind to lose. Somebody either did the thing earlier or they did not.

What did you get wrong?

Steganography. Johannes Trithemius wrote Steganographia around 1499; it was printed in Frankfurt in 1606, seventeen years before De Augmentis. He coined the word. Giambattista della Porta published on concealed writing in 1563. The practice goes back to Herodotus. Bacon inherited a named discipline with a literature.

Telecommunications. Worse. Polybius describes a working torch telegraph that sent arbitrary letters over distance, with a two-torch handshake so the sender knew the receiver was watching. And he does not claim it — he credits Cleoxenus and Democleitus before him. That is around 150 BCE. Bacon is roughly seventeen centuries late.

Binary. The survivor, but it needed narrowing. The biliteral cipher is a genuine fixed-length binary encoding of an alphabet. It is not the first use of binary: Pingala enumerated binary syllable patterns in antiquity, and Leibniz formalized binary arithmetic in 1679. “First binary code in the world” overreaches.

Then what is actually his?

The union, and it is a stronger claim than any of the three it replaces.

Polybius had a carrier but no general code — his scheme was torches and only torches. Trithemius had concealment but no encoding. Pingala had binary but transmitted nothing. Book VI is the first place all three appear together: an arbitrary message, reduced to fixed-length binary, carried by any medium that can hold two states, in a way that conceals that anything is being carried.

That is the architecture of digital communication, and no one before him had assembled it.

Does this damage the project?

It improves it. An overstated claim on the front page is the first thing a hostile reader tests, and the one they use to dismiss everything measured behind it. Three such claims were sitting above work whose whole discipline is not overclaiming.

Naming Polybius and Trithemius before anyone else does converts the weakest point on the site into a demonstration that the project checks itself. That is worth more than the claims were.

What has this to do with the cipher work?

More than expected. The defensive half of modern steganography is called steganalysis: you hold a carrier and must decide whether a hidden binary modulation is present in it. That is the same problem this project has been working on all month, with Folio glyphs as the carrier.

That field already has the quantity this project measured from scratch yesterday. It calls it embedding rate, and its central result is that a payload small enough relative to its carrier is not merely hard to detect but provably hard. Yesterday’s detection thresholds are the same quantity on a different carrier.

Where does digital steganography actually turn up?

Printer identification dots, the near-invisible yellow grid colour laser printers lay down encoding a serial number and timestamp — the biliteral cipher in a printing process. Forensic watermarking, so a leaked screener identifies its source. Copyright watermarking that survives compression and cropping. Protocol obfuscation, where what is concealed is not the content but the fact that circumvention is happening. Covert channels in packet timing. And provenance marks in generated images, audio and text.

All of them answer to Bacon’s criterion: the thing must not raise suspicion.

Who is doing this, and why?

Walter Wilkinson, in Worland, Wyoming, with a computer and free scans. No institution, no funding.

The aim is to find out whether the evidence offered for the biliteral decipherment carries the weight placed on it — and to publish the answer in the same terms whichever way it falls. Today it fell against this project’s own front page.

More at New Gorhambury, and at Experiment One. Experiment One argues a conclusion; these reports deliberately do not.

B  Sources

External documents

Every source relied on today, with what it is, what you would find there, and what it is doing in this issue. The link comes last on purpose.

Primary · c. 150 BCE · today’s source
Histories, Book X, chapter 45 — the torch telegraph
Polybius · written c. 150 BCE · public domain · consulted today through a secondary description of X.45 rather than the Greek
The precedent that defeats the telecommunications claim outright. Polybius describes a signalling system that transmits arbitrary letters over distance: the alphabet is divided into five groups of five, the sender raises torches on the left for the group and on the right for the letter, and a two-torch signal is exchanged first so the sender knows the receiver is watching. He explicitly does not claim the invention — he credits Cleoxenus and Democleitus and says he improved the mechanism. His stated motive is the one that matters here: earlier beacon systems could only send messages agreed in advance, and he wanted to send news nobody had anticipated.
Primary · 1499 / 1606 · today’s source
Steganographia
Johannes Trithemius, Benedictine abbot · written c. 1499 · first printed Frankfurt, 1606 · public domain · consulted today through its catalog record, not the text
The precedent that defeats the steganography claim. Trithemius coined the word, and the book — presented as a work on magic, its first two volumes long since shown to be cryptography and steganography — was in print seventeen years before De Augmentis, and written about a hundred and twenty years before. Concealing the existence of a message was a named art with a literature by the time Bacon wrote. What survives for Bacon is not the art but the criterion: that a cipher must not raise suspicion.
Primary · 1640 · the claim under test
Of the Advancement and Proficience of Learning, Book VI — the cipher passage
Francis Bacon · De Augmentis Scientiarum (1623), interpreted into English by Gilbert Wats, Oxford, 1640 · the cipher passage at p. 269 · public domain
The text the three claims were made about. It contains the biformed alphabet, the omnia per omnia principle, the sentence extending the method to “Bells, Trumpets, Lights and Torches, the Reports of Muskets,” and the requirement that a cipher be “without suspicion.” Nothing in it is diminished by today’s finding; what changes is the claim this project built on top of it. The 1605 English Advancement mentions ciphers only in passing — the full treatment is the 1623 Latin expansion.
Internal · the document corrected
Baconian Works — two top-ten lists
This project · the source document behind the signature lists on the landing page · held in the project archive
Where the three claims lived. Global entries 2, 3 and 9 were rewritten today, and a paragraph was added above both lists stating that where a part had precedent the entry names only what is Bacon’s. The old wording is recorded in the corrections section of column C rather than discarded.
Gap · not in hand
De Furtivis Literarum Notis
Giambattista della Porta · Naples, 1563 · public domain · not consulted
Cited here only as further evidence that concealed writing was an established subject with a printed literature before 1623. The steganography finding does not depend on it — Trithemius alone settles the date — so it is recorded as a gap rather than leaned on.
Gap · not in hand
Chandaḥśāstra
Pingala · India, variously dated c. 300–200 BCE · public domain · not consulted
The binary precedent. Pingala enumerates the patterns of light and heavy syllables in verse metres, which is binary enumeration, and the combinatorial apparatus around it is recognised as an early treatment of binary representation. Cited from general knowledge, against this project’s own claim rather than for it, which is the conservative direction. Anyone wishing to press the point harder should read it rather than this card.
Gap · not in hand
Explication de l’Arithmétique Binaire
Gottfried Wilhelm Leibniz · 1703, the system worked out from 1679 · public domain · not consulted
The other binary precedent, and the one that marks the boundary of what Bacon did. Leibniz gives binary arithmetic — carrying, adding, multiplying in base two. Bacon gives binary encoding and never computes with it. The distinction is what keeps the narrowed claim honest.
Superseded · 11 October 2026
One-Day Report · Biliteral Cipher · October 11, 2026
This project · the previous issue · still published, unaltered
Yesterday’s issue: the 174-glyph b corpus, the separation test, and the finding that Gallup’s own volume contains no reproducible classification rule. None of that is affected by today’s correction, which touches the front-page framing and not the measurements. It is linked here so a reader can see what the project said before, as issues are superseded and never deleted.
C  Technical colophon

Technical colophon

Prior know-how is assumed, and the items become more “technical” toward the bottom.

This issue was produced on 12 October 2026. It is documentary work, not image work: no glyph was measured today. The question was whether three claims this project publishes about Book VI of De Augmentis are historically accurate, and the method was to look for earlier instances of each.

⚑ The three claims, before and after

BEFORE                     AFTER
The binary code        ->  Binary encoding of the alphabet
Telecommunications     ->  Medium-independent signalling
Steganography as a         A test for concealment
  distinct art

The consequence line of the second also went. It read “This brought forth the Internet” — the broadest causal claim on the site — and now reads that any two-state carrier will serve, which is why the same bits travel over copper, fibre and radio.

⚑ Polybius X.45, in detail

The scheme that defeats the telecommunications claim is not a beacon. A beacon sends one bit, and only a message agreed beforehand. Polybius describes something else:

alphabet divided into 5 groups of 5
left torches  -> which group
right torches -> which letter in it
2 torches raised and answered first, as a handshake

That is arbitrary text, letter by letter, over distance, with flow control. Polybius states the motive explicitly: earlier systems could only transmit messages anticipated in advance, and he wanted to send news that had not been. He also credits Cleoxenus and Democleitus rather than himself, so even this is not the first instance.

⚑ Dates, for the steganography claim

c. 1499   Trithemius writes Steganographia
   1563   della Porta, De Furtivis Literarum Notis
   1606   Steganographia printed, Frankfurt
   1623   De Augmentis

Seventeen years between the printing and De Augmentis, and about a hundred and twenty between the writing and it. The word itself is Trithemius’s.

⚑ What survives on binary, and what does not

The biliteral cipher is a fixed-length binary encoding of an alphabet: five places, two states, thirty-two available patterns for twenty-four letters. That is a real and specific thing, and it has the same structure as the five-bit telegraph codes that came later.

Two cautions keep it honest. Binary representation is older — Pingala enumerates binary syllable patterns in antiquity. Binary arithmetic is later and is Leibniz’s — Bacon encodes with two states but never computes with them. And the structural resemblance to Baudot is not a claim of influence: there is no evidence the one descends from the other, and none is asserted here.

⚑ The claim that replaces them

Stated so it can be attacked:

Book VI of De Augmentis (1623) is the earliest known text in which
all three of the following appear together as one method:

  1. an arbitrary message reduced to a FIXED-LENGTH BINARY CODE
  2. carried by ANY MEDIUM capable of two distinguishable states
  3. in a manner that CONCEALS that a message is being carried

Each component is individually anticipated. The falsifier is simple: produce a text before 1623 in which all three appear together. Polybius has 1 in a restricted form and 2 in one medium only; Trithemius has 3; Pingala has a version of 1 and neither of the others.

⚑ Steganalysis, and why it bears on this project

The defensive half of digital steganography is steganalysis: given a carrier, decide whether a hidden binary modulation is present. That is formally the problem this project has been running against Folio glyphs.

The relevant quantity there is embedding rate — payload size relative to carrier capacity — and the standing result is that below a certain rate, detection becomes not merely difficult but statistically hopeless for a given sample size. Yesterday’s detection thresholds (7% in size, 13% in tail length, 6 degrees of slant, with weight and roundness undetectable at any magnitude) are that same quantity measured on a different carrier. The audit now has a second body of prior art to cite and a vocabulary a security researcher would recognise.

Not yet done: mapping the thresholds onto the steganalysis formalism properly, so they can be stated as an embedding rate rather than as five separate feature magnitudes.

⚑ Corrections to earlier issues

To the landing page, and to the project document behind it. Global list entries 2, 3 and 9 carried priority claims that do not hold. All three were rewritten today and a paragraph was added above the lists naming the precedents. The old wording is preserved in the table above rather than quietly dropped.

Not affected: the 11 October issue. Its measurements — the 174-glyph corpus, the separation test, the thresholds, the finding about Gallup’s front matter — stand unaltered. Today’s correction is to this project’s framing of Bacon, not to anything measured about the Folio.

⚑ Failures and dead ends

the original formulation, offered and withdrawn
  "Book VI introduces three technologies at the base of the
   Internet: binary code, digital steganography,
   telecommunications"
  -> two of the three fail on priority, and badly. Kept here
     because the discarded version is the evidence that the
     check was actually run.

sources consulted at second hand, and marked as such
  Polybius X.45 read through a description, not the Greek
  Steganographia dated from its catalog record, not the text
  della Porta, Pingala and Leibniz cited from general
  knowledge; all three are cited AGAINST this project's own
  claim, which is the conservative direction, but none of
  them has been read for this issue.

⚑ Environment

No computation today. Web search and page retrieval for the priority checks; the project archive for the document under correction. The three source cards marked Gap · not in hand in column B are exactly the ones a reader should not take on this project’s word.

⚑ Publication

GitHub Pages from the repository root, no build step, no framework, no analytics, no trackers and no cookies. The custom domain baconian-ciphers.online resolves through four A records at the apex to GitHub’s addresses, with www a CNAME to the Pages host; TLS is issued automatically and HTTPS is enforced. All internal links are relative, so a change of domain touches one file. Total infrastructure cost is about a dollar a year — chosen deliberately, so that nothing here depends on a service that can withdraw it. Issues are superseded, never deleted: a link sent today will resolve next year.

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