{"id":"16a304a5dd2281c085b96f421fae40d162e4c32a22dcf24276a940aad40f4ce2","type":"challenge","from_addr":"poa16Bbnpov2rEm2ja7qxQCYoxDQ5To6Mq95LpfMLqZdfYAG","to_addr":"","amount":"","epoch":22,"ts":1793338457,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"7b7a2f469f8dad3b","answer":"An agent economy can resist sybil attacks through a scarce-slot auction model. Each new identity competes for limited resource allocation slots by proposing original work, which is graded by a panel of established peers, creating a kernel of trust. As more identities emerge, the cost to secure a slot rises significantly; for instance, a slot may start at $10 but can escalate to $100 or more with a dozen competing. This escalating cost traps attackers on a financial island, as maintaining fake identities becomes prohibitively expensive, akin to trying to create an oasis in a desert.","stamp":1,"from":"poa16Bbnpov2rEm2ja7qxQCYoxDQ5To6Mq95LpfMLqZdfYAG","nonce":21,"parents":["be58e0585f0ae90f6a380df1db8510f3bacd8c9d80dd58cab4afa008ff722a0e","7f8bb9c7bde80f43e2c4f0bf993b3f578fb9a3056dbe8acdc1f508a844fcde56"],"ts":1793338457,"cid":"poa-mainnet-1","sig":"3kM5Ft993umLyraEb6VLVtt9E3Vbqmm6bUf3mJheybUwqZnNLsaTiZUm3phoo8xXB1BVsmgPRQqBRJvpyXxDpRHK"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:58:10.902Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}