| Description | Conventional display | ATF | EpiDoc page(s) |
| Correction of sign | AB! | AB! | Correction (without specification) |
| Correction of sign (original shown) | AB!(BA) | AB!(BA) | Erroneous substitution |
| Damage to sign | bi-⌈it-su⌉ | bi-it#-su# | Ambiguous characters (Leiden underdot) |
| Unknown number of characters lost | [...] | [...] | Lost characters, quantity unknown |
| One character lost | [x] | [x] | Lost characters, quantity known |
| Six characters lost | [x x x x x x] | [x x x x x x] | Lost characters, quantity known |
| Three to six characters lost | [x x x (x x x)] | [x x x (x x x)] | (tba) |
| Restored lost characters | [AB] | [AB] | Editorial restoration |
| Uncertainly restored lost characters | [AB?] | [AB?] | Editorial restoration, uncertain |
| Restoration of accidental omission | <ab> | <ab> | Supplement of omitted characters |
| Restoration of intentional omission | bi-it-<(su)> | bi-it-<(su)> | Abbreviation fully expanded |
| Characters rejected by editor | <<ab>> | <<ab>> | Superfluous characters |
| Unclear sign | x | x | Illegible characters, quantity known |
| Clear but uninterpreted sign | AB | $AB | Uninterpreted characters (Leiden uppercase) |
| Ligature or compound grapheme | a+na | a+na | Ligatures |
Cf. also Steve Tinney and Eleanor Robson, ATF Quick Reference, Oracc: The Open Richly Annotated Cuneiform Corpus, Oracc, 2014.