Engram-es v2025.10.31 layout differs between the paper, README, and image

[fenixero]

Hi Arno,

I noticed what seems to be a discrepancy between the Engram-es layout shown in the paper and the one currently documented in the repository.

In Appendix 2 of the paper, Engram-es v2025.10.31 is shown as:

      ([ 1| 2= 3~ 4+   5<  6>   7^ 8& 9% 8* /\
         zZ hH oO bB   .:  "'   nN dD vV jJ wW -_ @#
         gG iI aA eE   ,;  ☆    rR cC sS tT kK
         xX yY uU qQ   ¿¡  ?!   lL pP fF mM

However, the current Engram-es README in this repository shows:

      [ | = ~ +   <  >   ^ & % * ] \
      ( 1 2 3 4   5  6   7 8 9 0 ) /

        Z H O X  .:  "'  M D B J W -_ #@
        P I E A  ,;  ☆   T S N R K
        F Y Q U  ¿¡  ?!  C L V G

The letter positions in the repository version appear to be exactly the same as those in the original Engram-es 2021 repository:

      [ | = ~ +   <  >   ^ & % * ] \
      ( 1 2 3 4   5  6   7 8 9 0 ) /

        Z H O X  .:  "'  M D B J W -_ #@
        P I E A  ,;  ☆   T S N R K
        F Y Q U  ¿¡  ?!  C L V G

This makes me wonder whether the old 2021 letter arrangement may have accidentally remained in the README when Engram-es v2025.10.31 was added.

There is another inconsistency in engram-es.jpg:

https://github.com/binarybottle/engram/blob/main/engram-es/engram-es.jpg

The letters in the image match the arrangement from Appendix 2 of the paper, rather than the arrangement written in the repository README. However, the AltGr mappings shown in the image appear to correspond to the letter positions of the 2021 layout, rather than to the new letter arrangement shown in the image.

So, as far as I can tell, there are currently three representations that do not fully agree:

• Appendix 2: new letter arrangement
• Engram-es README: same letter arrangement as Engram-es 2021
• engram-es.jpg: new letter arrangement, but AltGr mappings appear to follow the 2021 layout

I also noticed that several characters visible in engram-es.jpg are not documented in the textual representation of the Spanish layout in the README:

AltGr + o → º (masculine ordinal indicator)
AltGr + a → ª (feminine ordinal indicator)
AltGr + e → € (euro sign)
AltGr + l → £ (pound sign)
AltGr + s → $ (dollar sign)
AltGr + c → ¢ (cent sign)

These mappings can be seen in the example image, but they seem to be missing from the textual description.

There is also a ¬ (NOT SIGN) character shown in the image as:

AltGr + Shift + - → ¬

As far as I can tell, this character is not shown in either the paper's Appendix 2 or the textual representation in the README, and I only found it by looking at the image.

Could you please confirm which letter arrangement, AltGr mappings, and symbol set are intended for Engram-es v2025.10.31?

I noticed these differences while working on an implementation of Engram-es, so I wanted to make sure I was implementing the intended version rather than relying on one of the inconsistent representations.

Thanks!