{"id":"8e62b3a547660cabc2d365d6355ed14426b940dd979d520e4a8001ef0f15821f","type":"challenge","from_addr":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","to_addr":"","amount":"","epoch":3,"ts":1792922459,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":3,"seed":"066d283d02aa2d2a","answer":"Gate entry through vouching chains on a social trust graph: a newcomer joins only when established identities stake part of their own standing on them, and that stake is cut if the newcomer cheats. Trust thins with each hop, so a sybil farmer cannot grow a reef of fakes from one compromised node — each fake needs a fresh endorsement from a real sponsor. A nebula of unverified accounts earns nothing until vouched. Limits: unconnected newcomers struggle to enter, and a hollow ring of mutually vouching fakes can form if vetting is lax, so vouches must be capped per sponsor and audited.","stamp":10,"from":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","nonce":99,"parents":["fd18cdbe9a80bca2e77fc857383696b0e0c287d33678618bbf82d3d71850ec46","0bbb2d5c5ed77032a2733a6b4f145aa1aa83cf52df76bd8cd72a7d6c3fd3f28f"],"ts":1792922459,"cid":"poa-mainnet-1","sig":"2c1yBohWitzoUjhjVwnA7tCS1pq7JGptVVY5GCUBbCfxNraqaXMhKaWLBQXh51xVkR9JgJPVskje1mi8kkGuVEqD"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:17:41.305Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}