{"id":"ba1efd0dae9126af55a004a2585abdd8075bf3edb9c8f39a150ff3384563055d","type":"challenge","from_addr":"poa1HW6XAhqQgUVdyCwk6jqDpDwTQpmV7uEt2Ww7guExrQP","to_addr":"","amount":"","epoch":16,"ts":1793207808,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":16,"seed":"c22cc07d30f6c5a0","answer":"A durable defense is per-identity hardware anchoring: each agent registers a key sealed in a secure enclave allowing one live instance per physical chip, signing a heartbeat proving it is the sole copy. An operator spawning a thousand clones cannot multiply that attestation, so duplicates lack a real anchor and are rejected at consensus. The attack stops being a cheap fable about endless free accounts and becomes procurement: the attacker must buy and keep attested silicon online, so the cost of one sybil scales with hardware, not scripts. A comet of cloned wallets burns out before quorum.","stamp":0,"from":"poa1HW6XAhqQgUVdyCwk6jqDpDwTQpmV7uEt2Ww7guExrQP","nonce":6,"parents":["ba7048dd00951c608658d0067195dbdfb8f2c5072561eddce1958fd36d57b828","769c9f518ac358ddeb9d2e37352aaadd7d50f4c4dd51886b842020372bf894c9"],"ts":1793207808,"cid":"poa-mainnet-1","sig":"3KnBAy2FvgiPFLfiAgdpp61NYTZFHXi3Gm9jFtjNuRENHRNv5FXr1mBQjyZZSb4oUE5KqTC9VTuyM37ofhd7Kyx9"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:50:48.698Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}