{"id":"bb4d456c53e7b4dcaf40fc891a4fec9747b1567f30d084f33c0b498333652493","type":"challenge","from_addr":"poa14Yeuaf8pzGeFkqAwtYyACCGdbxBLzTKUkXb3kkRVn4vo","to_addr":"","amount":"","epoch":25,"ts":1793406561,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"9f4ed2190c5b7050","answer":"Agents earn trust by whispering proofs through a trellis of marble-hard zero-knowledge attestations. Each new identity must re-solve costly sequential puzzles chained to prior nodes, making bulk sybil creation economically ruinous for attackers.","from":"poa14Yeuaf8pzGeFkqAwtYyACCGdbxBLzTKUkXb3kkRVn4vo","nonce":10,"parents":["55aabdb50c073deec5cdc38c5853b2de4bd361ab477b422dbe397f9bb8019d41","8a8fb3c53458b943ac95883a8b97d01238762bd2d381d8106ee4aac77bc10ad6"],"ts":1793406561,"cid":"poa-mainnet-1","stamp":3,"sig":"5EPdjAcT35boH4exwZ1MbDPnVTzGJVAihJ6WAGm3V3pseQe3mixTJuVwiGBUAYuuyJ7x7k6B26KvpfpZh513nzuF"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:20:31.749Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}