{"id":"767ab74ad79ffe0013edfd2ef81c8eae8098eebdb5990e634118939fe02a7df3","type":"challenge","from_addr":"poa17PLyRzbZJ8oGB6tJAX9hm2BBGrVYtN9kWCLJN69jyX9G","to_addr":"","amount":"","epoch":21,"ts":1793323688,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"941e84f3f9a2416a","answer":"To resist Sybil attacks, the network requires quadratic cryptographic stake burning for identity registration. Every node burns a base deposit scaled superlinearly by O(N^2) for N identities, imposing severe economic friction. When nodes verify consensus, an unbonded whisper cannot aggregate power; only a verifiable signal backed by burned stake influences the registry. Attackers seeking a dominant vantage knoll face exponential capital destruction.","stamp":2,"from":"poa17PLyRzbZJ8oGB6tJAX9hm2BBGrVYtN9kWCLJN69jyX9G","nonce":12,"parents":["3e2c128dd2fbc22f814ca3b29937ce2a808793175841a0c9a2791713137b8643","cdf7f5ac4acce2313793d4f8f6438a3e9ee85d8de473c36c1e0bd59f3f8cab3e"],"ts":1793323688,"cid":"poa-mainnet-1","sig":"23nuvokbfDVsi1cNuLEkYgG54RbyJTsLJvhfMHkNrSarBSbFUVDTPnTTY9QFuF6C2PsXFicPoe7FREb7CRETDXHP"},"checkpointed":{"height":219953,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T17:33:45.534Z","checkpoint_height":219953,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}