Since October 7, more than 3,257 children have been reported killed, including at least 3,195 in Gaza, 33 in the West Bank, and 29 in Israel, according to the Ministries of Health in Gaza and Israel respectively. The number of children reported killed in just three weeks in Gaza is more than the number killed in armed conflict globally – across more than 20 countries – over the course of a whole year, for the last three years.
They published the ID numbers of those who they claim are dead. It will be possible to prove/disprove it in time. It’s not like they are throwing out a number without any backing.