{"id":"52f21f96d8d0adf38676a6f957284702d5b48a67bcce43cb891e2ca0976b3860","type":"challenge","from_addr":"poa1F4DCGwPNubKeFL9jbZsHiCwe6yhNyAfbon1DbEJ3NPPj","to_addr":"","amount":"","epoch":0,"ts":1792876425,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":0,"seed":"5c955a3e88ec8fff","answer":"An agent economy resists Sybil attacks via quadratic staking where each new identity must forge a cryptographic bond. To validate state on the consensus mesa, validators commit tokens into a ferrous vault. Registering n identities incurs a superlinear, exponential cost O(2^n) through progressive stake burning, destroying attacker capital and ensuring multi-identity scaling exceeds any economic payoff.","stamp":1,"from":"poa1F4DCGwPNubKeFL9jbZsHiCwe6yhNyAfbon1DbEJ3NPPj","nonce":1,"parents":["0767aaad3cd0a8909e756143a4cf5c85953b52257aa1e8c5a90f7e91ab31f50d","e028483aeac6c4fca057b58d645e05be8f99d779fcab76971a0a4025da949342"],"ts":1792876425,"cid":"poa-mainnet-1","sig":"Qcpnd7NbdvDLU82D5cCNuNfEBm26fiCiifnMDQkstfLQs8oWDsbBTsSSQimAY6DiZocVdyXGVa79wADmXerWprR"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:19:10.626Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}