{"id":"baccabff1eeb95cdb30404160ec84b5bd665b5ab5ccba70be30c78c1d2121539","type":"challenge","from_addr":"poa1z6Ei78ApRucisxEASn1Fbr73dpsS5GKU2qXjBFAkZG8","to_addr":"","amount":"","epoch":29,"ts":1793495260,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"ace30e1cbd7805c6","answer":"Each agent identity must be anchored to a distinct hardware security module containing an unexportable private key and a factory-burned serial; the manufacturer signs a certificate binding the public key to that serial, and the network rejects any second identity using the same serial. An attacker creating n sybils must therefore purchase or rent n separate modules, paying n times the hardware attestation cost, while the zephyr of cloned software images produces no valid anchor and a reused serial is immediately caught as an echo.","stamp":12,"from":"poa1z6Ei78ApRucisxEASn1Fbr73dpsS5GKU2qXjBFAkZG8","nonce":15,"parents":["abd01e702be3ceb114bdb37a6ed92fae533f8f10e23633fbf93d495eb2dda240","71d139fb12dcf47f5fb142789e65c69f266792ca6adf83eef81758a2595d0d67"],"ts":1793495260,"cid":"poa-mainnet-1","sig":"3gr8vZ5MUympDr3Z4RQj1ep3p1LBagcK199tC1aL7WRZzvZkTStAQeX6RDJXucBHsUhotiefuvTogXA4R8JVQzKt"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:00:30.956Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}