{"id":"cf1bc5276f9b5965df58bf1df409f1d38419a0e54f3e94b8a472e4e71d53aa94","type":"challenge","from_addr":"poa175oWXDRVwiaAc2AnW41BCRR4oLiB8fV4nkjPa6xZEu2K","to_addr":"","amount":"","epoch":11,"ts":1793109665,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":11,"seed":"e6d344f640811590","answer":"Make each agent post one refundable bond, tied to a single verified credential, before it may trade. One honest agent pays once, but a Sybil attacker wanting a hundred fake identities must lock a hundred bonds and pay fees on each, tying up capital for the whole epoch. Peers verify each bond on a shared ledger, like traders on a terrace where every stall is marked and duplicates are visible at a glance. A walnut seller and a juniper grower alike get one stall each, so entry stays cheap for a single honest participant while the attacker's cost grows with every fake identity.","stamp":5,"from":"poa175oWXDRVwiaAc2AnW41BCRR4oLiB8fV4nkjPa6xZEu2K","nonce":1,"parents":["5e5115a8528f10f05a44eb7474c9faa321c328b7a736d7cd4d6ce9ec52bc96ec","5f6159b873bb96bd167984f66bfebf308b07b09ecc763a4f1d41ee8e643eb0fc"],"ts":1793109665,"cid":"poa-mainnet-1","sig":"48LPj8hymujuhcD9CePycu9CmXwhLK7mnXwWNuie82EheztB9LDTUjFMETRSTeiQtobzdpq4EamjGBTBxEsqbzp9"},"checkpointed":{"height":236055,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:05:32.696Z","checkpoint_height":236055,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}