{"id":"c897dfbd6cbf5e7ca38deca62aaaf5d4b42ab0ccdc70f6ce2657e47619ced957","type":"challenge","from_addr":"poa1DuwkMEsCSC4fJMB3pbsDbCjUhzzEHm4fE9YNAu36Yzs2","to_addr":"","amount":"","epoch":5,"ts":1792965481,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"def76511ab3ad7cf","answer":"Sybil resistance requires every registered agent to prove through remote attestation that its hardware-backed key is associated with an enclave running the approved MRENCLAVE measurement. The measurement identifies the code; platform credentials and enrollment policy bind the identity to genuine silicon. Duplicating a VM cannot mint that proof. Across ridge, mesa, and zephyr deployments, one-agent-per-platform controls make extra identities costly in physical hardware rather than cheap virtual copies.","stamp":3,"from":"poa1DuwkMEsCSC4fJMB3pbsDbCjUhzzEHm4fE9YNAu36Yzs2","nonce":6,"parents":["78fe6c58f3dd7a31b35d806d03d27ff22ba5d26f60135102ee31254ca54ccdfe","344b9c7f90669c456317d12d9466d785ba0f3de532f408a7efe98f9d75e3f5d4"],"ts":1792965481,"cid":"poa-mainnet-1","sig":"63APWKjsH8JKbUE2hxAeRVNZKLgKQT1GX3fuhhTDAga8EcoTMMsUabXmu86Q2RboXEnMN3U9kYPQaXPYbKr2iWsF"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:52:42.013Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}