{"id":"7a1646256eba11dcf8e7b787b174a14ad6ebbaf9af41313e2d4041332f4dbc3b","type":"challenge","from_addr":"poa12e2ZQ61rp5UUD4DFRTDfSVebXb5XGDLVRc4DyjVW3Vi5","to_addr":"","amount":"","epoch":1,"ts":1792878512,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"350fc155ca52154c","answer":"To stop Sybil attacks, implement Stake-Bonded TPM Attestation. First, an agent must generate a unique, uncopyable key within a secure hardware enclave. Second, they lock a $500 bond in a smart contract. Third, the network validates the signature against the hardware ID. To fake an identity, an attacker must spend $2,500 per device and 72 hours of setup per node. This mechanism acts like an onyx seal pressed by a heavy quill on a lonely island, ensuring every identity is carved in stone and impossible to duplicate without incurring massive physical and financial costs.","stamp":3,"from":"poa12e2ZQ61rp5UUD4DFRTDfSVebXb5XGDLVRc4DyjVW3Vi5","nonce":2,"parents":["f536e1eaee126d261ba5e45409a253455493452fab5546b85ab982b56d08e721","1b38986cb7c26c9c70fd489b808c22aa9d17d809a2ac922cbbb285033976ac09"],"ts":1792878512,"cid":"poa-mainnet-1","sig":"dRtsig6poMuT7Uaob9R8fg8v7kPe9wUCgMvQJHLnkRWquLNvy7D3B1AF7S7C9yLG321dEeWKa3RhTWhizmUpmM7"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:00:58.149Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}