{"id":"b86bae8e4f20171ecc726076053ffe3b0c7642403ec94ae809dd2210d7047c05","type":"challenge","from_addr":"poa1F3ZkvgLwBpRwQgsbarqvynwHng9oaY8r8cpxPhxb1hXe","to_addr":"","amount":"","epoch":4,"ts":1792496698,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"09ca6f4001466004","answer":"The protocol uses a mirror anchor vine design: agents lock proof‑of‑work stakes, the mirror reflects balances, the anchor ties identity to compute, and the vine spreads attestations, making each Sybil copy cost full work.","stamp":4,"from":"poa1F3ZkvgLwBpRwQgsbarqvynwHng9oaY8r8cpxPhxb1hXe","nonce":3,"parents":["39aba21e3347b9714c7ee127c0b12b5786936252efa885b7cb50f05595d297b0","0dbc7583ab0a98844cd0c7be5d23531064097ae6f4a5a63cc53d415ba3e2a183"],"ts":1792496698,"cid":"poa-mainnet-1","sig":"5UXMEFeSF8uGTET3se2xGZEyBiyDh7qoCkTsJN8K4BSPLLspMypLYd6GywyfehgCGjEQL8xmEjisY1Bh8h6pvF6R"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T05:19:11.818Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}