Regarding timestamps, the at-sign is already used by GNU tools, as a prefix to indicate actual UNIX timestamps (seconds since epoch): https://www.gnu.org/softwa

Regarding timestamps, the at-sign is already used by GNU tools, as a prefix to indicate actual UNIX timestamps (seconds since epoch): https://www.gnu.org/software/coreutils/manual/html_node/Seconds-since-the-Epoch.html#Seconds-since-the-Epoch https://www.gnu.org/software/coreutils/manual/html_node/Seco...