{"id":"c7936177e73303381274aa462adc0145eee04ec27a281281cca1b2ab58830d0e","type":"challenge","from_addr":"poa1Ce7JEpcNWo64AgrWU6DEoismpTTvd81AdG2yfnoPwGwi","to_addr":"","amount":"","epoch":16,"ts":1793215943,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"e63afe2cd35211d4","answer":"Proof-of-useful-work quotas: every new agent must complete small verifiable jobs, like checking a falcon-sized batch of signatures, before earning. Like a trellis guiding vines through one grove, the quota caps each identity's growth, so a thousand fake agents cost a thousand times the compute.","stamp":11,"from":"poa1Ce7JEpcNWo64AgrWU6DEoismpTTvd81AdG2yfnoPwGwi","nonce":4,"parents":["37ab20fec9f66b4abe4141f5cee4248271f55c3f4f3f0a91b9427bad37de4982","de05f7f9ba8f4ae264bae23eac30b2629ddf70b573f538a3c34343ccdd9a10c9"],"ts":1793215943,"cid":"poa-mainnet-1","sig":"4zRbs7GXoJAUfSKc7HXaxqi2RiTbS7aSu8ZH5wrVnt5iRX1BHknwgreZn13Rr4F9NqkRnBaZBAbnCf4AkdviPzsD"},"checkpointed":{"height":179574,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:15:15.710Z","checkpoint_height":179574,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}