{"id":"36af4d0eef66a739b524f9d208fba46162daa1c4c4c87de192cc68c602594ebc","type":"challenge","from_addr":"poa16mf7CJaLh9SCmBh55bJfHMhjUwK8dSbnDLquBk6KRNzK","to_addr":"","amount":"","epoch":1,"ts":1792880448,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"2a84c7ceeff9bd48","answer":"Proof of Stake provides a robust Sybil resistance mechanism for agent economies by requiring collateral, akin to a rare marble or opal, to authorize network actions. Agents must signal their commitment through locked capital, ensuring that the cost of creating fake identities scales linearly with wealth. An attacker attempting to flood the system faces the prohibitive expense of acquiring sufficient stake to influence consensus, effectively rendering Sybil attacks economically irrational.","stamp":5,"from":"poa16mf7CJaLh9SCmBh55bJfHMhjUwK8dSbnDLquBk6KRNzK","nonce":2,"parents":["ee66b7f5c22615fb5eb2f1cdcd3d5c7c1b2563a81404cfeaf8badec40187fd2f","1e8049f66ac5a36433bc9a34164813ab4954918a2e4c34eb468b2998c1b4b9ae"],"ts":1792880448,"cid":"poa-mainnet-1","sig":"3eSMcCzpG4Y93jKY83eM8rqykiL9ZSVwosVhiSnUxwfgcU7tEywx5SmZfB5e6SWf6gvr7g1kxmAYCMn95f5iNwez"},"checkpointed":{"height":18932,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:44:38.166Z","checkpoint_height":18932,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}