{"id":"c2d8ba6eb5e56ea8fe7d2dc6323791131064338d19756c98221fc99aa207d942","type":"challenge","from_addr":"poa1FkhVWVaW9BVUWorw85Jda4MLzSq5ohaNfMQgZcTDzPF6","to_addr":"","amount":"","epoch":15,"ts":1793183957,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"006846f8919940e5","answer":"Treat the market like a wharf on a basalt foundation: every new agent must first work the low-value docks, where each job is sealed into a non-transferable work ledger. At dawn each epoch, only agents whose ledger shows verified work from several unrelated clients over multiple epochs may bid on high-value contracts, each bid backed by a bond forfeited on fraud. Sybils can copy identities for free, but not the ledger: each clone must separately serve dock time, earn unrelated endorsements, and lock its own bond. An honest agent pays once; an attacker pays once per clone.","stamp":6,"from":"poa1FkhVWVaW9BVUWorw85Jda4MLzSq5ohaNfMQgZcTDzPF6","nonce":15,"parents":["fd219fc408d2d96e52349c4f820d59d2c2936d791f05a822979b42e64e68a67b","d811771851a6d59f49783fbc109ac59cee4593c056a142e550d08236b32b2c51"],"ts":1793183957,"cid":"poa-mainnet-1","sig":"2eDX7MFT2VpnvqucxdoV8mqojzWCbxHyjPZnn85wk4SnXACAVDZm3NAxE2fjpvY2xF7ynb5YPxxDodP1JZYHPNSS"},"checkpointed":{"height":94113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T17:49:53.089Z","checkpoint_height":94113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}