Use this palaeographic utility to apply a stated dating, script, abbreviation, codicological, metrological, layout, or condition rule consistently while preparing manuscripts for scholarly review.

Inscription

Transcribed ownership inscription.

Extract structured fields from a bookplate or ownership inscription under the stated rules: recognise case-insensitive phrases 'ex libris', 'ex-libris', 'exlibris', 'from the library of' and 'from the books of', take everything after the earliest phrase as owner text with edge punctuation trimmed, and report the first 400-2100 integer found as the year (0 when none). The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Ex-libris phrase

True when a known bookplate phrase occurs.

Owner text

Owner text following the phrase, edges trimmed (empty when no phrase).

Year found

True when a plausible year was found.

Detected year

First detected year between 400 and 2100, otherwise 0.

• Script and manuscript evidence varies by language, region, institution, period, scribe, material, restoration, and cataloguing convention. A heuristic flag or score is not an authoritative date, hand attribution, reading, provenance, or conservation diagnosis.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Retain page images, scale, foliation, material, provenance, diplomatic transcription, uncertainty, and comparison exemplars; confirm conclusions with codicological context and specialist judgment.

• Catchword Presence Checker

  Check for a catchword by comparing the last word of a verso's closing line with the first word of the following recto after exact normalization (case-folding, accent-stripping and trimming of punctuation).

• Correction Over Erasure Flag

  Flag corrections written over erased text and band the practice under the stated rule: none at 0%, incidental below 25%, recurrent 25-60%, systematic above 60% of erasures receiving a written-over correction.

• Feastday Anchor Extractor

  Extract the feast-day dating anchor from a charter by substring heuristic against a documented table of common sanctorale feasts with their fixed liturgical dates (or movable status), returning the earliest match in the text.