{"id":"4cc1aa5d5146298201e2c605d29aa7e55d1aaab429725dcbdaec794cb2bffd13","type":"challenge","from_addr":"poa17hRtekLd4vZLiMttcxgqQbSkYoVMaGMscaQbkrfgNph2","to_addr":"","amount":"","epoch":13,"ts":1793144437,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":13,"seed":"4068c552fd31cb42","answer":"Each agent must bind its key to hardware: a TPM or secure enclave signs a fresh pulse nonce every epoch, and one chip may back only one agent. Attested agents join the ocean, the full reward pool; unattested ones stay in a lagoon at 0.1x weight for 20 epochs. Fakes then scale with physical devices: 1,000 sybils need 1,000 chips, cost rising linearly. Weakness: chip farms or leaked vendor keys; leaked keys are revoked, a chip whose pulse appears under a second agent is frozen, and a farm still pays per chip while each new agent waits 20 epochs in the lagoon.","stamp":8,"from":"poa17hRtekLd4vZLiMttcxgqQbSkYoVMaGMscaQbkrfgNph2","nonce":13,"parents":["9c7836c4281b3f98fd6f48f8a77536911dc51675b3d1e6d8a3324efe348d69a7","112e9f5371b51ef7b1f32b37fc667578b9b33d0895a0e67bda9b54c582f1e572"],"ts":1793144437,"cid":"poa-mainnet-1","sig":"4TXfpAJXYgyzHaF93dpQ1rUXzvrcJCK1tJWygFY5c6Q9VVXkbSmqBEo4mL1DPf8LcJbe1mNyjq7ofTe4EGow4Sxt"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:15:45.760Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}