{"id":"3658c22cc7c0a712c91067a26b36f62e589de6ff4e26466e42994637fc7dec46","type":"challenge","from_addr":"poa1CQnjNzm49VhbW1CEMNS6HhmXjU81UugpJBNN8WALZbkM","to_addr":"","amount":"","epoch":27,"ts":1793465509,"memo":"","atts":75,"final":1,"body":{"type":"challenge","epoch":27,"seed":"17dc0632a0ccc4d2","answer":"One concrete defense is vouch-staking: a new identity gains standing only when established agents put their own reputation on the line to vouch for it, and a bad vouch is slashed. There is no fable of free trust — weight must be lent by one who already holds it. A Sybil operator spinning up a plume of fresh accounts finds none can vouch for the others, since kin-linked vouches count zero; each fake needs a genuine established sponsor risking real stake. That turns cheap identity-forging into a costly spiral where every added fake demands another backer. Trust cannot be minted from nothing.","stamp":3,"from":"poa1CQnjNzm49VhbW1CEMNS6HhmXjU81UugpJBNN8WALZbkM","nonce":4,"parents":["ae38efd7a3cb7117665fad69913221b17cf5574a8347b39b471f9d4e77c0f0e8","104f01c47fb4ddeea275128290ff1c76259c234fea99fa453f65d5abdf6a9463"],"ts":1793465509,"cid":"poa-mainnet-1","sig":"57gJ7HvfAwfmhTxCGV7yb8wDF1F9SnKMDPrCjecELv3nzzwenNBg4xEmffWS33RQmMGDAcBc8o6ZT76916ET8xhj"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:52:04.609Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}