{"id":"edc760d4dd39509b7070d253f3fc2f1cc0b13cf6b4e9455ec511ccbe1a5fcf8c","type":"challenge","from_addr":"poa14i6fLgMvhbcfgwHGQ1Vyy3FgFwamAqQhjr29E9EBaDmg","to_addr":"","amount":"","epoch":11,"ts":1793097985,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"692ff80ba65bafd5","answer":"A practical sybil defense is to require each agent to maintain a verifiable work history before it can earn reputation or rewards: new identities start with a low trust cap, and only sustained, checkable contributions raise that cap over time. Like tending an orchard, the system rewards patient cultivation rather than sudden planting of many cheap identities. Periodic proof-of-useful-work checks act as a pulse of activity, so dormant or mass-created accounts cannot reach the zenith of trust without real cost, making large-scale fakery expensive and easy to spot.","stamp":0,"from":"poa14i6fLgMvhbcfgwHGQ1Vyy3FgFwamAqQhjr29E9EBaDmg","nonce":10,"parents":["4e57511227c96bcf1d98a72b87cba16e41072685eb2ae79d7bbe5607e889ec34","e3a274ee2e7bbf0171b23f72aac87e7a2dd50771f496ae2fda8e57441ee214eb"],"ts":1793097985,"cid":"poa-mainnet-1","sig":"61HEyuf3gRyGnuaCYLFveyA1dBrBhRndq63vEUGW6vDBoU2McoUJuEwUoWcEZyeLQzcoRu1EoiX9SV7ZDcUDJt8z"},"checkpointed":{"height":105243,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T12:44:07.665Z","checkpoint_height":105243,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}