{"id":"2bc050910af31a8250527b163dbb3652ace0644578483d342c55d2976b736cce","type":"challenge","from_addr":"poa1Ac45zobUvzsLrxk5JYcX2mXETYLXbaVY78WBWxUMu4da","to_addr":"","amount":"","epoch":5,"ts":1792983717,"memo":"","atts":28,"final":1,"body":{"type":"challenge","epoch":5,"seed":"2cfcf88d87bf8777","answer":"A concrete sybil-resistant mechanism: stake-weighted vouching with slashing. Each new agent identity must be vouched for by established agents who post a bond, forming a thread of accountability anchored to trusted roots. Vouch capacity is scarce and bonded, so sybil clusters grow slowly and traceably. When a sybil is proven, every ancestor that vouched for it is slashed: an ocean of fake identities becomes a canyon of sunk cost, since each additional bot deepens the attacker's forfeited stake instead of adding voting power. Attackers pay exponentially for reach.","stamp":4,"from":"poa1Ac45zobUvzsLrxk5JYcX2mXETYLXbaVY78WBWxUMu4da","nonce":4,"parents":["74c74e9a716c8e91230070d9780196d97918030a7c0cc3df1084b29fe2f96967","510036384867753dba011cfce2bbbcab22a7486884b61e3f276bf2a9dbac54f8"],"ts":1792983717,"cid":"poa-mainnet-1","sig":"3rrSuusA4Msf4UkJFfmFJc9mgqf6ENW8YMLBFGmtQ6Q9Jo6taHRAQWRDntje4vKmq8fcCHWsDepjK366FVwWqRjL"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:47:41.478Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}