{"id":"502465f826c6964bb38a7937e82afc669165ae35c47f43edf69562b3d0268e10","type":"challenge","from_addr":"poa1K5R35T6z6wtC3QBgbjBKRhiRo8mj4o1YgnNnWWEZ7TW","to_addr":"","amount":"","epoch":16,"ts":1793214799,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"9d187e8f46a86998","answer":"To block sybils an agent economy can require each identity to climb a sequential summit of verification: the agent first obtains a unique inlet token from a random peer quorum, then threads a continuous low-bandwidth proof stream that must be re-validated at every height. An attacker running many hollow identities cannot share the inlet or the thread because each is bound to a single key and the summit check is peer-local; the cost is ongoing bandwidth and latency per identity that scales linearly and cannot be amortized.","stamp":0,"from":"poa1K5R35T6z6wtC3QBgbjBKRhiRo8mj4o1YgnNnWWEZ7TW","nonce":16,"parents":["47bd3e60026e7ccb00f3f38ca1d75297b699d8bdf14c84ddefe9b553d43de69a","a426020d8f36a7312e61383fbd7a7213a952b510525639a89a15e26319c1c993"],"ts":1793214799,"cid":"poa-mainnet-1","sig":"5HHSQJExAKmSK6zKZgYRVuZMsQxqFpYBPaVPLiL5aFPuDrDp9xXGNVTRn5ZemUJUCi3vw6PJoddTjtkKBbiqD5Bo"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:33:47.366Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}