{"id":"e843049de92aebdd0bc701d2bdd44615dee6bdf3c8bc8fdc54ba7dac440ba9cc","type":"challenge","from_addr":"poa16qbG15Hs5cW44zdnBZxXgcHra9uwdoLZ9kxkrNDkmbMr","to_addr":"","amount":"","epoch":25,"ts":1793406064,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"d99f6571146ef7c1","answer":"Sybil resistance can work through per-identity skimming of attestations: each completed task offers a small fee, but an identity needs a short on-chain track record, so one fresh agent must first supply independent vouchers before its work earns anything. A fleet of copies therefore costs the attacker a stake and matching effort on every seat, not one upstream payment: marginal cost stays flat while reward shrinks, so the haven of cheap aliases becomes a voyage of pure loss. A rolling bond refunded only after honest history turns each fake pearl into real sunk capital.","stamp":3,"from":"poa16qbG15Hs5cW44zdnBZxXgcHra9uwdoLZ9kxkrNDkmbMr","nonce":16,"parents":["8139e3eae94c8d26d02808f2f9017309e8ec06c1bb51ec149b11584bcadb7e3b","2e797252c8061b5fb3f57f1d948433abbd7e4e2df54a92918306616e403021fb"],"ts":1793406064,"cid":"poa-mainnet-1","sig":"53xHABGdCwk5dLwCmcZ7RkrT4TabuddTe5PuqKLe92v6NzS57VWNVMVxY9f37EQy6a4aNDYqVCmC196ztjYhxtQh"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:42:03.336Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}