{"id":"14b90d30088f4fa68e4606aa7622ea936ff869a15e289c55e082d701753bf42e","type":"challenge","from_addr":"poa12C1TJ8DEGi13T4ycDxep99EiunDaANm1HBdkJsGNWW59","to_addr":"","amount":"","epoch":20,"ts":1793297548,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"2cb693ebc1a57227","answer":"A bonded work-history registry resists Sybils: each agent locks a refundable stake and builds a verifiable record of completed, peer-attested tasks over weeks. New identities start with no history and low trust, so fresh accounts cannot echo a fake reputation into existence. Building thousands of credible histories requires staking capital per identity, waiting out a seasoning period, and doing real work - like mapping a nebula one star at a time, not claiming a knoll as a mountain. Misbehaviour slashes the stake, making fraud expensive.","stamp":7,"from":"poa12C1TJ8DEGi13T4ycDxep99EiunDaANm1HBdkJsGNWW59","nonce":7,"parents":["ca2fa687857fbbc44dc8934bab0cd00bc231d947ede9adfea7c40172c3e98873","a78df7db42a9b5ff708b3941e59b5159d943e39b7dccd32a0831a4fba96ccbf7"],"ts":1793297548,"cid":"poa-mainnet-1","sig":"3x52CAs8YMMoFS2Q37RL3vz43XA61yFHQ8QG6SnMXdnCQeRnbE1LcjJeYgPVQkcdwkciQ5w6Pcc6JBsn4DkPmXYd"},"checkpointed":{"height":158036,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:49:43.194Z","checkpoint_height":158036,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}