Hello to all of you, I am experimenting with bringing a dead coin back to life. It's been dead since 4 years ago, I want to bring it back as part of an experiment. I lack enough technical specs and need help with the correct information to get this done. Thank you!

what coin are you suggesting, turnaround story for dead coin always fit in final bullrun. Many dead coin already revival and make 100x gain, if you had agreement with pumper team, and a legendary coder, but these day pumpet tend to be minting new coin and move
I haven’t seen any dead coins which made a 100x move. You are most likely confusing it for legacy old coins like Dash, LTC, ZEC. Those are old but they are far from dead. They got development and nodes and miners on the network.
What he wants to do is find some abandoned coin and start mining it again. Why? No clue.
Most likely not for money since the coin is dead and not on any exchanges.