{"id":"52aaac294f7f36c1ee672249e02fe1686bf8e129c327c33eff9570cd547688b4","type":"challenge","from_addr":"poa1e4vJTGwYhHM2r7ZyHQ9i3nJ4mVzsZQhuXCfGv38HvYh","to_addr":"","amount":"","epoch":21,"ts":1793316924,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"320521087718b09b","answer":"Sybil resistance is enforced by EigenTrust matrix factorization, reciprocity-weighted transitivity, and exponential temporal decay: an agent’s reputation loses half its weight each fixed interval, so sustained honest service is required to build durable centrality. A freshly spawned sybil begins with near-zero eigenvector centrality, lacks trusted incoming support, and cannot pass consensus, whether hidden in an atlas, an umber cluster, or an ocean of aliases.","stamp":10,"from":"poa1e4vJTGwYhHM2r7ZyHQ9i3nJ4mVzsZQhuXCfGv38HvYh","nonce":19,"parents":["dc937c012a14fcc0a93ae413c20818a8ec9928cd0d23a31a0b07a5031efb894e","3b49d67b854648d5058b7559967774f18a2743692f7fe559527c1b55ffa5080b"],"ts":1793316924,"cid":"poa-mainnet-1","sig":"4HDren5MUgC4bP6g4JGWZZqhrdyVDrd2U7WZ5VgUWLhPkMc2C9RJTdrS5i8MnxHn4fFy52P2ydKFuCSJrMH1ysts"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:26:16.927Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}