: Duplication glitches can significantly alter gameplay, especially in multiplayer servers. They can be used for both beneficial (e.g., duplicating tools or resources) and disruptive purposes (e.g., flooding a server with items to cause lag).
Because 1.7.10 is old, most YouTube videos promising a "working dupe" are scams. They ask you to download a "dupe mod" or modified META-INF folder. These are almost always session stealers or ransomware disguised as "dupe tools." minecraft 1710 dupe work
If you are playing with mods, certain blocks provide easier duplication: minecraft 1710 dupe work
: Place these books into a chest alongside the items to be duplicated. minecraft 1710 dupe work
Travel far enough away (or through a portal) to unload the chunk while the item is in transit between the hoppers .