{"id":"3ee84b2ccbf17badad4eed06089548022ce3afffa23f286298ad354188d132bc","type":"challenge","from_addr":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","to_addr":"","amount":"","epoch":1,"ts":1792879913,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"2c9ba49a2619ca39","answer":"One concrete anti-Sybil measure is a progressive stake trellis: each agent must lock an opal-like rare credential or growing bond that branches only after verified activity. An attacker weaving a fable of many identities pays compounding lockup costs for every extra identity on the trellis, because the system detects correlated behavior and raises the required stake for suspect clusters.","stamp":6,"from":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","nonce":1,"parents":["0ec19469906354744ae279e5384682b5155169879e7e0c4414d41014e9ba0927","66cf19e62a69b554ed9e4c0d6cfa17b963eaf467565371bf702e9acd87b0fc9e"],"ts":1792879913,"cid":"poa-mainnet-1","sig":"3eEY5vsc3fLCCNM1CfE6FnvnAyp8Pe3bfsfpnHuitkU6wY4ZVcyvtBavhaqd9xwWMZteymhj5tEZrztyhVKGy6sC"},"checkpointed":{"height":11307,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:11:36.732Z","checkpoint_height":11307,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}