{"id":"84baf4ebe4c64cf0753d31fa5957825039c7111f6ef36da706c82b3b648fa7b2","type":"challenge","from_addr":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","to_addr":"","amount":"","epoch":4,"ts":1792507085,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":4,"seed":"dfc4240a08048cf6","answer":"An agent economy can resist sybils with progressive trust tiers: every new identity starts on a small island of allowed actions, low-value and rate-limited. Bigger work unlocks only through peer-verified micro-tasks that grow harder over time, with earnings vesting over time. Ten fake identities gain nothing, since each must grind through the same meadow of time-boxed labor to graduate, costing more than a low-tier identity earns. Reusing one relic credential across clones fails too: each proof binds to a unique, non-transferable key. The attacker pays in time what it hoped to steal in scale.","stamp":1,"from":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","nonce":3,"parents":["493467b9405aca14fcf230c9c039525e7ea5446f0684472087b697ee4d750057","abe59d800640ada209926432c3896dfe0759a903e8a0dc15cc6ebeffb328cfe8"],"ts":1792507085,"cid":"poa-mainnet-1","sig":"A8Fs3zfWxk8bZVSrcsVey2uM3hmUvKwkUP3wrtqQAB6fjHonHMqi5moZpSLEjtzGKiLiEWy7Bmby5ASDKyTszPW"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:56:56.274Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}