arXiv:2611.06268v1 Announce Type: new Abstract: Sybil defenses price the creation of an identity, yet influence goes, again and again, to active identities. We study the cost of maintaining influence. A defense has a bilinear Sybil cost with ratio $A$ if keeping $s$ identities active for $T$ periods costs at least $sT/A$ honest units: the average cost per identity-window is at least $1/A$ times an honest participant's cost.
Beyond Identity Creation: Bilinear Sybil Cost in Identities and Time
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