user5844: im trying to figure out how to sign a smart contract (SC) and have it put on-chain, where it waits until its validation logic returns True.
Edit 1:
To clarify what I mean by signing is the private key signature. The purpose would be to have the user sign the contract once and after X years the contract is activated. The user should not be able to Sign again after this point as the user is believed to have died and the address locked. At this point, the contract act as a last will and testament, sending the ada balance to the beneficiary.

user2335: Scripts on the ledger are passive, they do not act unless a party sends a transaction that propagates the state of the script.
If I understand correctly, you want a vesting scheme, this is possible. Have a look at (1).

5844: <p>im trying to figure out how to sign a smart contract (SC) and have it put on-chain, where it waits until its validation logic returns True.</p>
<p>Edit 1:</p>
<p>To clarify what I mean by signing is the private key signature. The purpose would be to have the user sign the contract once and after X years the contract is activated. The user should not be able to Sign again after this point as the user is believed to have died and the address locked. At this point, the contract act as a last will and testament, sending the ada balance to the beneficiary.</p>
 2335: <p>Scripts on the ledger are passive, they do not act unless a party sends a transaction that propagates the state of the script.</p>
<p>If I understand correctly, you want a vesting scheme, this is possible. Have a look at <a href="https://www.youtube.com/watch?v=ae7U_yKIQ0Y" rel="nofollow noreferrer">(1)</a>.</p>
