theoretically it could work indefinitely. The only requirement is that the specific chosen Archeologist node or pool of nodes be active during the resurrection time. This protocol operates on Eth and AR blockchains so there isn't any duration limitations except the parameters set by the archeologist nodes.
Sarcophagus is the Next Generation of Decentralized Data Recovery and Passdown. A Decentralized Dead Mans Switch to operate as A Will and Trust, or recover important credentials if you lose access or are incapacitated. Why would you invest in Decentralized assets, and use an outdated and centralized data recovery tool or Executor of your Will? This tool allows you to fully control when your asset recovery Data(or any data you choose) is securely released to its receiving address/beneficiary.
The testnet Tomb for creating Sarcophagi, is out and running so you can give it a try at no real cost. Final Main Net launch is coming soon. https://app.dev.sarcophagus.io/#/tomb
SARCO Liquidity mining pool has seen highs of 2.5mil, and currently has just under 1 mil of stablecoins locked. https://mining.sarcophagus.io/
Ambassador program is eminent!
Visit the official Site for The Discord, telegram, Litepaper, and more! https://sarcophagus.io