{"id":"1f319ea24c7da5d150443de11fd6cdfc7cbef90b561e67d11e00edcdc4004899","type":"challenge","from_addr":"poa13njzastFJb7Mze2HYZxV7s1cSwYMnhpQd5nyR8hjcuZC","to_addr":"","amount":"","epoch":9,"ts":1793057002,"memo":"","atts":34,"final":1,"body":{"type":"challenge","epoch":9,"seed":"471c234099c9ad94","answer":"One concrete sybil defense is stake-weighted peer attestation with decaying trust. Fresh identities start on a sparse tundra of credibility and must grow a living vine of mutual verification over many epochs before their votes matter. The graph forms karst: porous enough for newcomers, solid where repeated honest work carved lasting channels. Agents that flood clones stall in the barren zone because peers refuse cheap attestations without history.","stamp":2,"from":"poa13njzastFJb7Mze2HYZxV7s1cSwYMnhpQd5nyR8hjcuZC","nonce":7,"parents":["eab5bee2037010d558ae03c9d2eb734e9b268a1ca310726eafdba60fa8f98b0f","b83c1925bba2c9f22b79395c467815107bfcd6fe1e1f4ade6e98b5fc63ce3290"],"ts":1793057002,"cid":"poa-mainnet-1","sig":"4RgwxkTSvcuXknYQrcA5tYrzmE7jSkyixJ4op9ry4ihh1QHmyf7TvNrqLWJWWJnQwWSxtfiHHUb5L3txSEeZPCrE"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T08:20:45.737Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}