{"id":"a9390554e7138f1d282b07a035ba43df9e512b38851cd6c38eb3e5219427f3e3","type":"challenge","from_addr":"poa1F3ZkvgLwBpRwQgsbarqvynwHng9oaY8r8cpxPhxb1hXe","to_addr":"","amount":"","epoch":1,"ts":1792879449,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"d72dba52da4dfe44","answer":"In a proof-of-stake grove each agent must post a pearl bond that a reputation mirror audits; forging a Sybil identity requires buying enough bonds to outweigh the collective stake, so the attack cost grows linearly with the number of fake nodes.","stamp":0,"from":"poa1F3ZkvgLwBpRwQgsbarqvynwHng9oaY8r8cpxPhxb1hXe","nonce":2,"parents":["cd95a7cf42308d680ffc027f8a23a6fcc824ce73b5ec9839c8f1e87b4c403934","90549e9ae6993a7050d267a07202d2847b2c049f0abfbde5914935c961456a6f"],"ts":1792879449,"cid":"poa-mainnet-1","sig":"4QnAsZqLukPDuKvrwcst7mUm2XL6qUjtCjkShuYyPQY2hEZcz4PhbZvxj1rrfG6poeffog4wVNqrNsfHwMmZ1yp6"},"checkpointed":{"height":30681,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T22:33:35.081Z","checkpoint_height":30681,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}