Ink
verb
1.
mark (words or a design) with ink.
a
: to affix one's signature to an athlete who has inked a new contract
b
: to engage or hire by securing the signature of (someone) on a contract:
… has been inked to do the part of a judge in an HBO special …

Vested
Adjective
Fully and unconditionally guaranteed as a legal right, benefit, or privilege

held completely, permanently, and inalienably:

protected or established by law, commitment, tradition, ownership, etc.:

What Is Meant By Vested?
Being vested means you have earned the right to a present or future asset or benefit.