# Angelotti 2026: Complete virtual unwrapping and reading of a rolled Herculaneum papyrus

> Giorgio Angelotti, Stephen Parsons, Federica Nicolardi et al., 2026. 29 records on Mysteries Department cite it. The main source for the 2026 results…

Source: https://mysteriesdept.com/sources/SRC0D367HFP2ZBK/complete-virtual-unwrapping-and-reading-of-a-rolled  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Herculaneum Papyri and the Vesuvius Challenge](https://mysteriesdept.com/mysteries/herculaneum-papyri)Angelotti 2026

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# Complete virtual unwrapping and reading of a rolled Herculaneum papyrus

Giorgio Angelotti, Stephen Parsons, Federica Nicolardi et al., 2026. _arXiv_.

Reports the complete virtual unwrapping and reading of PHerc. 1667 from BM18 synchrotron scans, direct volumetric ink segmentation in PHerc. Paris. 4 that confirms the 2023 machine-learning reading, and the title of PHerc. 139 (Philodemus, On Gods, Book 8). Includes the scan protocol, the unwrapping and ink pipeline, and the Greek transcription with translation.

**Herculaneum Papyri and the Vesuvius Challenge** PreprintCopy of **[PHerc. 1667 (Vesuvius Challenge Scroll 4)](https://mysteriesdept.com/mysteries/herculaneum-papyri/artifacts/ART0D36867R0QD6/pherc-1667-vesuvius-challenge-scroll-4)** Checked against the original0

## What it's used for here

The main source for the 2026 results, the physical history of PHerc. 1667 and the data and code statements.

## Cited by on this site 29 records

[The 2026 pipeline (BM18 scanning at about 2.4 µm, semi-automatic surface tracing and learned ink detection)…](https://mysteriesdept.com/mysteries/herculaneum-papyri/answers/ANS0D367WF82EJD/the-2026-pipeline-bm18-scanning-at-about-2-4-m-semi)

Answer

ANS

[The library held a wider philosophical collection, including Stoic and other works now lost, that the sealed…](https://mysteriesdept.com/mysteries/herculaneum-papyri/answers/ANS0D3681V45JBT/the-library-held-a-wider-philosophical-collection-including)

Answer

ANS

[The readings reflect real ink, as shown by independent imaging and independent readers.](https://mysteriesdept.com/mysteries/herculaneum-papyri/answers/ANS0D367Z565VAY/the-readings-reflect-real-ink-as-shown-by-independent)

Answer

ANS

[The treatise is by another Stoic of the late third or second century BC, possibly in Chrysippus's school.](https://mysteriesdept.com/mysteries/herculaneum-papyri/answers/ANS0D3683SM47FF/the-treatise-is-by-another-stoic-of-the-late-third-or-second)

Answer

ANS

[PHerc. 139 (Philodemus, On Gods, Book 8)](https://mysteriesdept.com/mysteries/herculaneum-papyri/artifacts/ART0D36886872JM/pherc-139-philodemus-on-gods-book-8)

ART

[PHerc. 1667 (Vesuvius Challenge Scroll 4)](https://mysteriesdept.com/mysteries/herculaneum-papyri/artifacts/ART0D36867R0QD6/pherc-1667-vesuvius-challenge-scroll-4)

ART

[PHerc. Paris. 4 (Vesuvius Challenge Scroll 1)](https://mysteriesdept.com/mysteries/herculaneum-papyri/artifacts/ART0D3686Z63881/pherc-paris-4-vesuvius-challenge-scroll-1)

ART

[PHerc. 1667 (Vesuvius Challenge Scroll 4): transcription](https://mysteriesdept.com/mysteries/herculaneum-papyri/copies/CPY0D3687703MP5/pherc-1667-vesuvius-challenge-scroll-4-transcription)

CPY

[PHerc. 1667: Greek transcription and English translation](https://mysteriesdept.com/datasets/DAT0D3685R450B3/pherc-1667-greek-transcription-and-english-translation)

Dataset

DAT

[About 70 per cent of PHerc. 172 had been digitally unwrapped by mid-2026.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367WYW5RJ6/about-70-per-cent-of-pherc-172-had-been-digitally-unwrapped)

Evidence

EVD

[For PHerc. 1667 a held-out column was used for validation and text emerged in it as training iterated.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367ZWM726M/for-pherc-1667-a-held-out-column-was-used-for-validation-and)

Evidence

EVD

[In the 2.4 µm BM18 scan of PHerc. Paris. 4, ink deposits 10 to 20 µm thick are directly visible and match the…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367ZD04989/in-the-2-4-m-bm18-scan-of-pherc-paris-4-ink-deposits-10-to)

Evidence

EVD

[Iterative self-labelling on the same roll can reinforce early errors; the 2026 paper marks uncertain letters…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D3680C85NK2/iterative-self-labelling-on-the-same-roll-can-reinforce)

Evidence

EVD

[Lexical and conceptual features, and the Aristocreon reference, point to a Stoic context dated around the end…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D36841E7446/lexical-and-conceptual-features-and-the-aristocreon)

Evidence

EVD

[PHerc. 139 is Philodemus, On Gods, Book 8.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D3681BG6349/pherc-139-is-philodemus-on-gods-book-8)

Evidence

EVD

[PHerc. 1667 is an ethical treatise with Stoic vocabulary that names Aristocreon, Chrysippus's nephew and…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D36822Y6W39/pherc-1667-is-an-ethical-treatise-with-stoic-vocabulary-that)

Evidence

EVD

[PHerc. 1667 is only an 8 cm by 2 cm core, so its success says little about tracing a full 4 to 6 cm roll.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367X6P672V/pherc-1667-is-only-an-8-cm-by-2-cm-core-so-its-success-says)

Evidence

EVD

[PHerc. 1667's preserved surface, about 860 square centimetres in 22 columns, was unwrapped and transcribed…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367WQ27RGQ/pherc-1667s-preserved-surface-about-860-square-centimetres)

Evidence

EVD

[The 2026 paper names variation in ink recipe, contaminants, deposit shape and preservation as reasons the…](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D367Y5Y30FW/the-2026-paper-names-variation-in-ink-recipe-contaminants)

Evidence

EVD

[The editors date the copy to the second century BC and do not name an author.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D3683HT6C7G/the-editors-date-the-copy-to-the-second-century-bc-and-do)

Evidence

EVD

[The mention of Aristocreon, Chrysippus's nephew and pupil, ties the text to his circle.](https://mysteriesdept.com/mysteries/herculaneum-papyri/evidence/EVD0D3683A05YRA/the-mention-of-aristocreon-chrysippuss-nephew-and-pupil-ties)

Evidence

EVD

[Angelotti and colleagues post the full method and readings on arXiv](https://mysteriesdept.com/mysteries/herculaneum-papyri/events/EVT0D367V864RRB/angelotti-and-colleagues-post-the-full-method-and-readings)

EVT

[The Vesuvius Challenge opens with public CT data and prizes](https://mysteriesdept.com/mysteries/herculaneum-papyri/events/EVT0D367T8Y0MQJ/the-vesuvius-challenge-opens-with-public-ct-data-and-prizes)

EVT

[Nat Friedman](https://mysteriesdept.com/mysteries/herculaneum-papyri/people/FIG0D367Q3C06M3/nat-friedman)

FIG

[The Herculaneum Papyri and the Vesuvius Challenge](https://mysteriesdept.com/mysteries/herculaneum-papyri)

The mystery article

MYS

[Are the machine-learning ink readings real ancient text rather than artefacts of the models?](https://mysteriesdept.com/mysteries/herculaneum-papyri/questions/QST0D367VQT7R26/are-the-machine-learning-ink-readings-real-ancient-text)

Question

QST

[Can the sealed Herculaneum rolls be read in full, non-invasively, at the scale of the whole library?](https://mysteriesdept.com/mysteries/herculaneum-papyri/questions/QST0D367VG00XNS/can-the-sealed-herculaneum-rolls-be-read-in-full-non)

Question

QST

[What do the still-sealed rolls contain?](https://mysteriesdept.com/mysteries/herculaneum-papyri/questions/QST0D367VZM0NNS/what-do-the-still-sealed-rolls-contain)

Question

QST

[Who wrote the treatise in PHerc. 1667?](https://mysteriesdept.com/mysteries/herculaneum-papyri/questions/QST0D367W7E3GZG/who-wrote-the-treatise-in-pherc-1667)

Question

QST

## Cite it

```
Angelotti, G., Parsons, S., Nicolardi, F., Nader, Y., Johnson, S., Josey, D., Henderson, P., Schilling, H., Rudolph, J., McDonald, F., Dal Prá, E. R., Tafforeau, P., Mirone, A., Parker, C. S., Posma, J. P., Kyles, B., Vergara, C., Lavorante, A., Villa, R., Robustelli, M. C., D'Angelo, M., Del Mastro, G., McOsker, M., Fleischer, K., Chapman, C., Friedman, N., & Seales, W. B. (2026). Complete virtual unwrapping and reading of a rolled Herculaneum papyrus. arXiv. https://arxiv.org/abs/2606.29085
```

[Read it free at arxiv.org](https://arxiv.org/abs/2606.29085)

Key

**SRC** 0D367HFP2ZBK

Kind

Preprint

Rights

arXiv-nonexclusive

Kept

27 Oct 2026, for editors

Checked

Against the published original

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0D367HFP2ZBK/complete-virtual-unwrapping-and-reading-of-a-rolled/csl.json)
