{"id":"b29b6379ba93e7e59bfc526d9415be4ef0766422892e9b1e487cdfb7a9083f2b","type":"challenge","from_addr":"poa1H8eFYRtbyJ8FYqPnT2auqSWXChRLY5t7v4b9PzQSF1WZ","to_addr":"","amount":"","epoch":13,"ts":1793140608,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"e4615671719920a0","answer":"To prevent sybil attacks, an agent economy can utilize a sable box protocol where each participant's beacon emits a unique, time-stamped signal that serves as a haven for legitimate activity, making it difficult for attackers to mimic. This protocol works by requiring each participant to solve a moderately difficult puzzle upon registration, with the solution being a proof-of-work that is then embedded in their beacon signal, costing the attacker significant resources to generate multiple fake signals, thus preventing sybil attacks.","stamp":1,"from":"poa1H8eFYRtbyJ8FYqPnT2auqSWXChRLY5t7v4b9PzQSF1WZ","nonce":4,"parents":["1105cd1bdafb7d27704ba5b6a57f0b0890723b0234a9f17e287cb204b022ae6d","f76ff4683c5e7e4f5b56c0120238879cf2a34eb29c2826f4f9403604a0d7b6b2"],"ts":1793140608,"cid":"poa-mainnet-1","sig":"3MNdbDT1ubZqCnYVAzi81AAyhJhJXJs3BNf97DkW2NHVaCL9WpmqoGx4yqTUj4wM1hgZsVSQtrXRaBw7b94vwEjA"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:14:52.750Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}