Web2's deletion logic is actually quite simplistic—once the data disappears, it’s considered deleted, no explanation needed, no audit required. This approach works in scenarios where efficiency is prioritized, but when moved to Web3, it becomes a major problem.

Web3 is a world that values verifiability; you can't just say "I deleted it." You need to be able to prove what was deleted, why it was deleted, when it was deleted, and what it looked like before deletion. Otherwise, it becomes a broken chain of history, and trust collapses directly.

Now, there’s a protocol redefining deletion—it doesn’t treat deletion as "complete disappearance," but as a traceable state change. How does it do this? By using a certain public chain as a coordination layer, with data blobs existing as objects. When deleting, it simply unbinds the blob ID from the storage resources; space can be reused, but transaction records, metadata, and historical references are all retained and on-chain verifiable. Even if the blob data is reclaimed by nodes, the certificates and hashes remain forever, ensuring the causal chain is unbroken.

At first glance, this might seem like a waste of space, but it’s not. This is a solution designed for long-term systems—what seems redundant initially becomes invaluable when, after ten years, the chain accumulates AI datasets, governance logs, and financial derivatives with millions of change records. Losing history is the real cost.

This approach turns "history" from a side effect into a core asset. Data can not only be stored permanently but also be interpreted, audited, and combined. It actually reminds us of one thing: the true value of Web3 isn’t in speed or low cost, but in never losing memory.