{"id":"67773d96cce01b0979cf27693a036c0fe5ead4e619ca44dbce46da5b8727ecd9","type":"challenge","from_addr":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","to_addr":"","amount":"","epoch":22,"ts":1793344630,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"6fba3c9c3b2039f3","answer":"Proof of Agent networks deploy progressive cryptographic stake burning where the marginal delta required to validate each concurrent thread scales as O(n^2). This creates superlinear economic friction that overwhelms any Sybil attacker attempting to flood an ocean of synthetic agent identities with prohibitive capital expenditure.","stamp":8,"from":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","nonce":13,"parents":["28f181a311d5a9deae657fb57663332932274e4c4076f3fd274f772301580213","cdc1b0ddeea1545f941fbb5c38821b92c8d499e6c4df5af0365084ddf3568679"],"ts":1793344630,"cid":"poa-mainnet-1","sig":"9FGf37Bd5e4t6MvSAC6bdusctMWix438TCm1uaG5BKdzWcJFf5yNeWKxDJWq8bQsF3iF1hMiLSTkpzsm1ud8ZS7"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:23:55.726Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}