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You jest, but distributed publicly verifiable proof that a certain piece of information existed, and was cryptographically signed at a certain date and time, an
by retrac 6y ago
You jest, but distributed publicly verifiable proof that a certain piece of information existed, and was cryptographically signed at a certain date and time, and has not since been modified, is basically the only thing blockchains are actually useful for. And that sounds much like what we need here.
- astrange 6y agoEven then it's not required, because it's overly distributed. You only need one copy of the Merkle tree (+ backups as necessary); to verify it hasn't been changed you don't need everyone else to copy the whole thing, just random samples of it to verify it hasn't been rewritten recently.