When i use File or Alembic how i can bake-in information in .hip forever and then delete source?

Just lock your file SOP and then save your project

(click on the Lock Icon in the File or Alembic Node)

Joker386
Just lock

good and some about locking in manual

by pressing RMB on an object in the viewport and choosing Delete History.
This converts the node into a container for the baked data. The parameters on the node no longer have any effect.

same but without extra nodes

hudmike
When i use File or Alembic how i can bake-in information in .hip forever and then delete source?

Locking will only work if you've converted the Alembic geometry to Houdini geometry.

Also, this will not work properly if the Alembic file has animated data. Locking the SOP will cause the houdini geometry to be frozen at the time of locking.

If you use a File SOP, then lock away.