Mixed-register system
Different object classes may mix linguistic, numerical and emblematic registers rather than one uniform script.
Research compilation
Research compilation from a published ICIT-style digitization — not a complete or licensed photographic corpus
Fit on current defined metric: under investigation.
A cautious working frame, not a decipherment.
Assumptions
- Seals, tablets and pottery need not encode the same kind of message
Strengths
- Matches object-type variation
- Avoids a single-key fantasy
Limitations
- Easy to make unfalsifiable if every exception is a new register