Banks can close, servers can be destroyed, but there is a more realistic dilemma: when all infrastructure fails, can you still prove that "you are you"?
The traditional identity system is actually very fragile. Passports, household registration, bank records, all rely on centralized databases. Once these systems lose power, are attacked, or become inaccessible, identity shifts from "certain" to "unverifiable".
This is also the starting point for me to re-examine @SignOfficial .
Many people regard SIGN as an on-chain identity project, but I prefer to understand it as a "destruction-resistant proof system". What it does is not issue an ID, but transform "what you have done, what qualifications you possess" into a set of verifiable on-chain credentials.
The key is not in the identity itself, but in the "proof method".
In the SIGN model, a person's identity is not a single point record, but is composed of multiple credentials—participation records, organizational endorsements, historical behaviors, etc. This information is signed by different entities and put on the chain, so even if one system fails, other credentials can still cross-verify.
This changes one thing: identity no longer relies on a center, but becomes a "distributed collection of facts".
In extreme scenarios, it becomes very clear. During war or system collapse, a person may lose all traditional documents, but if they have a continuously accumulated record of credentials on SIGN, they can still prove their existence, experiences, and credibility to the outside world.
This does not completely replace real identity, but provides a "usable version" when the original system fails.
SIGN is promoting national-level cooperation, including attempts at digital identity and credential systems in the Middle East and Central Asia. The core demand in such scenarios is not efficiency, but whether it can still be verified in the worst case.
Of course, this path is not easy. The authority of credentials, cross-system recognition, and privacy protection are all issues that need to be addressed.
Nevertheless, SIGN is already answering a more fundamental question: when national systems fail, can a personal "proof of existence" still exist independently?
If future conflicts really extend from finance to identity and data layers, then the question may only remain one—when all documents fail, what can you use to prove "you are you"?