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I thought a bitcoin transaction was only considered successful after a sizable number of other bitcoin participants have based their successful computations on
by limmeau 15y ago
I thought a bitcoin transaction was only considered successful after a sizable number of other bitcoin participants have based their successful computations on it?
If that is correct, bitcoin validation isn't fast enough for instantaneous forum postings when the spammers can be assumed to be as dishonest as fits them.
- jsn 15y agoIIRC, you can almost instantly verify that certain bitcoin wasn't spent someplace else before, which would be good enough. Now, the attacker can use the same bitcoin for several web forms simultaneously, but 1) the scope of this attack is limited by the time window, and 2) if the server discovers a fraudulent transaction in, say, a few minutes, the spammy comment can be automatically deleted then.