Deathmark

From the White Wolf Wiki, the most complete White Wolf reference

When wraiths die, they are often marked by special lines and traceries around their Corpus which indicate the manner of death, as well as other information about their Fate. These marks, commonly called Deathmarks in counterpoint to the birthmarks of the Skinlands, are used by western wraiths to identify what Legion a Wraith should join. Deathmarks can also be read by wraiths with the Fatalism Arcanos.