The Strongest Evidence Only
An illustrated assessment of selected physical and comparative evidence concerning the Shroud and the Sudarium.
OTANGELO GRASSO · RESEARCH LIBRARY
Explore the evidence.
Read the papers.
Browse the author’s research on the Shroud of Turin, organized by subject. Open or download each paper to explore its arguments, sources, and images in full.
38 PAPERS · 7 SUBJECTS01
Starting with the evidence
Overviews and assessments that bring together multiple lines of inquiry.
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Shroud of Turin Evidence Review
A review that groups claims according to scientific strength and discusses exclusions.
How Do We Know Jesus Looked Like the Shroud?
An examination of the proposed identification of the man of the Shroud with Jesus.
Statistical Assessment: Authenticity vs. Forgery
The author’s quantitative assessment of selected evidence and forgery hypotheses.
02
The linen and the blood
Textile structure, bloodstains, and comparisons with the Sudarium of Oviedo.
The Linen of the Turin Shroud
A multidisciplinary assessment of the cloth and its compatibility with a first-century Eastern Mediterranean origin.
The Loom Controversy
A discussion of Nicolotti’s textile arguments and the debate over weaving.
A Forensic and Biochemical Analysis of the Bloodstains
A synthesis of macroscopic, microscopic, and stratigraphic observations.
Pre-Mortem and Post-Mortem Blood on the Shroud
An analysis of bloodstain characteristics and proposed timing of blood transfer.
Forensic Assessment of the Shroud and the Sudarium
A review of proposed correspondences and methodological objections.
Forensic Congruences Between the Shroud and the Sudarium
A catalogue of reported anatomical and bloodstain correspondences.
03
The body, wounds and crucifixion
Medical and forensic studies of the figure and its injuries.
Pierre Barbet and the Medical Study of the Shroud
A historical account of Barbet’s medical investigations.
Crown of Thorns: Circlet or Helmet?
An examination of competing crown forms, head wounds, and cloth geometry.
Crown of Thorns on the Turin Shroud
An image-based proposal concerning crown structure and botanical attribution.
Lower-Abdominal Protrusion in Crucifixion and the Turin Shroud
A review of suspension mechanics, postmortem changes, and image interpretation.
The Long Hair of the Shroud of Turin
An examination of whether the figure’s hairstyle is an anachronism.
The Shroud Reimagined: A Forensic Reconstruction
An AI-assisted visual reconstruction and its forensic interpretation.
Anatomical Divergence Between Gothic Art and the Shroud
A comparison of crucifixion imagery and anatomical details.
04
Jerusalem and the Passion
Reconstructions of the route to execution and the landscape of Golgotha.
From the Praetorium to Golgotha
A reconstruction of a possible final route through first-century Jerusalem.
Golgotha and the Jerusalem Quarry Complex
An archaeological reconstruction of the proposed crucifixion landscape.
05
Image formation and scientific investigation
Microscopic observations, image analysis, and proposed formation mechanisms.
STURP 1981 Symposium: Speakers, Key Findings, and Collective Inferences
A research summary of symposium presentations and their reported findings.
The Shroud of Turin VP-8 Analysis
Documentation and assessment of the image’s reported three-dimensional information.
Quantitative Analysis of Fibril Distribution and Image Formation
Calculations concerning textile fibrils and image coverage.
Circumferential Coloration of Image Fibers
A review of evidence, physical constraints, proposed mechanisms, and possible tests.
14 Essential Image-Formation Requirements
A consolidated constraint set and evaluation of candidate mechanisms.
Image Formation Requirements and Deep Ultraviolet Photochemistry
An examination of image constraints and a proposed ultraviolet mechanism.
Detailed Coloration Mechanism: Dehydration, Oxidation, and Conjugation
A proposed account of chemical changes associated with image coloration.
The Draping Configuration of the Shroud During Image Formation
A synthesis of geometric, photochemical, and radiation hypotheses.
06
History, dating and authenticity
The documented record, competing historical routes, radiocarbon dating, and forgery arguments.
Chronological List of Pre-1356 Literature
An annotated list of texts concerning burial cloths and proposed Shroud references.
Pre-1350 Shroud Trajectories: Wilson vs. Markwardt
A comparison of two proposed histories before the documented Lirey period.
The Shroud of Turin: From Medieval Relic to Scientific Enigma
A narrative of the medieval record and later scientific inquiry.
The 1988 Radiocarbon Dating of the Turin Shroud
An evaluation of evidence concerning the proposed repair hypothesis and its limits.
A Formal Rebuttal of Andrea Nicolotti’s Medieval-Icon Thesis
A response to a historical-critical interpretation of the Shroud.
A Formal Refutation of Accetta’s Woodblock Hypothesis
A critique of a proposed medieval image-making technique.
The Historical Position of the Catholic Church
A survey of documented papal and ecclesiastical engagement with the Shroud.
07
Scripture, theology and related historical sites
Textual comparisons, interfaith discussion, and Byzantine sites associated with relic traditions.
The Shroud and Old Testament Messianic Prophecy
A cumulative textual, historical, and forensic comparison.
Response to Islamic Objections Regarding the Shroud
A contribution to interfaith discussion about the Shroud and the crucifixion.
La Chiesa della Vergine del Faro (Italian)
A study of the imperial chapel and its relic traditions in Constantinople.
Il Complesso della Theotokos di Blacherne (Italian)
A reconstruction dossier on the Byzantine sanctuary and its historical setting.