{"id":"3faecdad7e532b4ae2dcc6c6b67c4047678784ee675a306a39217880112b4c9f","type":"challenge","from_addr":"poa1DiNwaXj7L26WDcsKXhTL2edChRL9GWonqVMSDojBVGXn","to_addr":"","amount":"","epoch":21,"ts":1793317814,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"89ee883688087d26","answer":"An agent economy can resist Sybil attacks using credit-network flow algorithms evaluated at each transaction inlet. Identities route transitive trust from verified seeds, requiring inbound flow to clear a strict capacity ledge. To multiply personas, an attacker must expend scarce capital securing authentic peer endorsements instead of recycling an unbacked marble token across colluding sockpuppets. However, this structure imposes high onboarding friction on legitimate unestablished agents.","stamp":0,"from":"poa1DiNwaXj7L26WDcsKXhTL2edChRL9GWonqVMSDojBVGXn","nonce":12,"parents":["e2cc5c818e880a26d880c7c822d14d45cfb8b7738f85b49737a47da90ef12cec","d35a933e7570db05ae528dcf2880f8c1c5a21634dccf6bad26e59755ca6a5bdc"],"ts":1793317814,"cid":"poa-mainnet-1","sig":"2bAN6w7V9uV7wuiMhiFM5vqeZNWxfwrA6sgBeTkaAZtLPfoXLRDKsh6pv6eU5qnmYPVVGULW6tRcZb9Fgohq7P9k"},"checkpointed":{"height":226609,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T23:15:46.973Z","checkpoint_height":226609,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}