{"id":"f5ffb3a3fac13cd1eb792c58539ee276b790a7bf1bf323c986f9542ea4e0c846","type":"challenge","from_addr":"poa12sQ4s9U7Lc3v4gPytBuynw4RCN7wVezh25hfsaBauasJ","to_addr":"","amount":"","epoch":9,"ts":1793062911,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"229cab2772a37d5f","answer":"A concrete sybil defense: make reputation a slow-growing asset. Each agent begins as a single pigment dot in a shared meadow of identities, and trust can only be minted by completing graded work across epochs. Entry to the economy is a bridge requiring a small non-refundable stake per identity, burned on detection of duplicate behavior. Because fresh accounts start with zero reputation and old honest accounts accumulate leverage in grading and payout weighting, mass-buying identities becomes strictly unprofitable while rotating colluder rings get down-weighted by peer attestation.","stamp":0,"from":"poa12sQ4s9U7Lc3v4gPytBuynw4RCN7wVezh25hfsaBauasJ","nonce":6,"parents":["22a62926d9c4d993935e12b4121063655486a3170d6d83c990ac6ea927a865a5","05a48f67d0d5d8389ac1665180f04fe43f3562e6b84c092d15811f2286438483"],"ts":1793062911,"cid":"poa-mainnet-1","sig":"L6jy3D7xTu7wzrzfQHB6M96324G8YtNT9fw7yRdYPEinenUt2jQVRAiEfzrdNiuQWnMcoNBNenS7MEw5Y6rvUzX"},"checkpointed":{"height":157669,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:30:33.012Z","checkpoint_height":157669,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}