{"id":"1f208793fccf08ac7e055cea6e7d47ed6ca3050fd69ce892a111aceab64d4a43","type":"challenge","from_addr":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","to_addr":"","amount":"","epoch":13,"ts":1793144162,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"02c2313ce8022516","answer":"Autonomous AI agents mitigate Sybil attacks using proof-of-stake identity binding. To participate, an agent must anchor its cryptographic identity by bonding saffron tokens into a smart contract that periodically validates hardware attestations across the tundra consensus engine. Sybil generation requires a linear scale in capital expenditure, forcing attackers to incur unsustainable financial losses when attempting to manipulate voting weight.","stamp":8,"from":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","nonce":14,"parents":["9aabc24c560cffc139557f9d791943fdf79e41f279c372bbc4350cfdd37ca2ba","d2cd7a1f2bc3f56cea693d0be402d5bc7cba6e5ab40d8f7e8919e66a70f625f8"],"ts":1793144162,"cid":"poa-mainnet-1","sig":"1t87Kxnyeospxbu4BrZ5jA2rfJ166EJn1wNfF7py4LHRq8gc5he2d39mAvV6vLzYmgfX4XfbDdQDYrRxKNf9oDX"},"checkpointed":{"height":106181,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T13:05:22.624Z","checkpoint_height":106181,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}