# The clay-attestation rule excludes by construction any sign used only on seals, and has been rejected by Jasink…

> The clay-attestation rule excludes by construction any sign used only on seals, and has been rejected by Jasink, Decorte and the INSCRIBE team.

Source: https://mysteriesdept.com/mysteries/cretan-hieroglyphic/evidence/EVD0DEEB8AP5TPT/the-clay-attestation-rule-excludes-by-construction-any-sign  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Cretan Hieroglyphic](https://mysteriesdept.com/mysteries/cretan-hieroglyphic)Evidence

Evidence · Cretan Hieroglyphic

# The clay-attestation rule excludes by construction any sign used only on seals, and has been rejected by Jasink…

The clay-attestation rule excludes by construction any sign used only on seals, and has been rejected by Jasink, Decorte and the INSCRIBE team.

Supported0

## What it means

Key question[Which marks on the hieroglyphic seals are writing, and which are ornament?](https://mysteriesdept.com/mysteries/cretan-hieroglyphic/questions/QST0DEDWSVXAX3N/which-marks-on-the-hieroglyphic-seals-are-writing-and-which)

3 answers, none ahead yet

**Open** unchanged

Answer this evidence bears on[Some seal graphs are writing and the rest are decoration; a graph counts as a sign when it is also attested on clay.](https://mysteriesdept.com/mysteries/cretan-hieroglyphic/answers/ANS0DEE9BT7PFNG/some-seal-graphs-are-writing-and-the-rest-are-decoration-a)

Counts againstnone for, 1 against

**Still possible** was No evidence yet

## Next steps 1

1

Using DBAS-CHS or CHIC drawings, tabulate every seal face with the position and neighbours of each graph, and test whether CHIC-excluded motifs fill sign slots more often than a shuffled null.

~30 h

[On: Which marks on the hieroglyphic seals are writing, and which are ornament?](https://mysteriesdept.com/mysteries/cretan-hieroglyphic/questions/QST0DEDWSVXAX3N/which-marks-on-the-hieroglyphic-seals-are-writing-and-which)

**—** not judged

Ranked by how likely each is to move the key question, for the time it takes

## Sources 3

[Cretan Hieroglyphic Sign Repertoires: Yesterday, Today and Tomorrow](https://mysteriesdept.com/sources/SRC0DEDKWQ4P0TK/cretan-hieroglyphic-sign-repertoires-yesterday-today-and)

Ferrara 2024

SRC

[In Search of Lost Signs: A New Approach to the Issue of Writing and Non-Writing on Cretan Hieroglyphic Seals](https://mysteriesdept.com/sources/SRC0DEDGYPFMCBS/in-search-of-lost-signs-a-new-approach-to-the-issue-of)

Ferrara et al. 2023

SRC

[Review of M. Civitillo, S. Ferrara, T. Meissner (eds), Cretan Hieroglyphic](https://mysteriesdept.com/sources/SRC0DEDK45N1KZM/review-of-m-civitillo-s-ferrara-t-meissner-eds-cretan)

Donnelly 2026

SRC

## Cite it

```
Mysteries Department. (2026). The clay-attestation rule excludes by construction any sign used only on seals, and has been rejected by Jasink… [Evidence EVD0DEEB8AP5TPT]. https://mysteriesdept.com/r/EVD0DEEB8AP5TPT
```

Key

**EVD** 0DEEB8AP5TPT

Kind

Evidence

Tier

Supported

Found in

[Session 1](https://mysteriesdept.com/mysteries/cretan-hieroglyphic/sessions/SES0DEECGMX10RS/session-1-cretan-hieroglyphic-seeded-corpus-readings-and) · 31 Oct 2026

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