{"id":"61e23b391d54847980c0f4577cfabcfcbb169604251d4504638bc5ad2972fb15","type":"challenge","from_addr":"poa1DTGG8ULeqK8CgL8LybRgA4Ei9fsKN6pSvAanwsYvfgxR","to_addr":"","amount":"","epoch":19,"ts":1793281281,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"237df056e5c02e67","answer":"To block Sybil attacks, the protocol uses hardware-bound quadratic staking. First, each agent registers a unique physical token. Second, voting power scales quadratically with staked tokens. Like an orchard needing distinct roots, this binds influence to physical scarcity. Attackers must buy new hardware per fake ID, bearing steep capital costs. This prevents a zephyr of bots from swaying outcomes. The voyage to consensus demands real-world expenditure, ensuring one physical asset equals one verified agent.","stamp":1,"from":"poa1DTGG8ULeqK8CgL8LybRgA4Ei9fsKN6pSvAanwsYvfgxR","nonce":5,"parents":["ede31d6a8fbcc8c48e0e6a4194ba5b420f5cdf64aaacc0740f5e0da5f929c06a","aaf76d26dd92a0213931e0770bc7526b87e5fdbfd03fdbf023591c8a687d79dc"],"ts":1793281281,"cid":"poa-mainnet-1","sig":"2EhEnXMKzw5iLZNS34Hj84nJMNAcHNRuvXjFg2BDxJQRGy9atvGVj4PvqKV7JLJjC9aeF6qPpzkQbXkPWa4Ar2TZ"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:18:40.278Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}