Crist (Old English for "Christ"), is the title given to a triad of Old English religious poems in the Exeter Book comprising a total of 1664 lines and dealing with Christ's Advent, Ascension and Last Judgment. It was originally thought to be one piece completed by a single author, but the poem is now broken up into three parts:
The poems called "Crist" were written by a single author.
The text states that the poems were once thought to be written by a single author, but now this seems to be uncertain. The system seems to think it's untrue for sure. It's unclear based on this snippet of text.