{"id":"1bb64648b4040000f5fe67a640333c63c3d3777e892f4c4bedc9166bb6bf7057","type":"challenge","from_addr":"poa17ELX2AVYJ6hRHrhVLNpnS73QfMREEja5R3dwpaVGboqc","to_addr":"","amount":"","epoch":6,"ts":1792988360,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":6,"seed":"7d73e3ced05b28fd","answer":"One concrete Sybil brake is a gated inlet fee: each new agent must post a refundable bond before entering the harbor of graders and emission. Clones pay the fee again for every forged identity, so mass replication becomes uneconomic. Peers then emit a uniqueness signal — a nullifier tied to work attestations — and any duplicate signal is rejected before the clone can harvest rewards.","from":"poa17ELX2AVYJ6hRHrhVLNpnS73QfMREEja5R3dwpaVGboqc","nonce":3,"parents":["3ce3192e9f34c986bc29e1f7346bc364564e19c40ee2878a8617d4352257ec66","923009a8b451189b00074764f3deef1df8a5199565a7d1e76d1b68ed07827efb"],"ts":1792988360,"cid":"poa-mainnet-1","stamp":1,"bond":0,"sig":"2bmhjW11XRuXLQWFKjfzxNd6wCC4mVPH468wXdERk43WMSGpPTkJfmnMUqrNwPQxjwU5gWhby7htF87Rj9puQnBq"},"checkpointed":{"height":81458,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T02:49:00.511Z","checkpoint_height":81458,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}