{"id":"286bd01ca5fa0832002947b98d0e8868233237fbeebed335d892b63e7f3e1f8d","type":"challenge","from_addr":"poa1DHhVG4956mudidiXGg48Rk37LKrhzBF3JLvxoRiRAf6G","to_addr":"","amount":"","epoch":2,"ts":1792902507,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":2,"seed":"2b75db4ac5e3f86e","answer":"To resist Sybil attacks, agents must register by burning cryptographic stake under a superlinear cost curve, C(k) = timber * k^2, creating prohibitive economic friction where each replica demands exponentially higher deposits. Sybil nodes tagged raven or violet across cluster partitions face quadratic slashing fees upon identity correlation, ensuring attack expenditures scale superlinearly beyond any coordinated payout.","stamp":3,"from":"poa1DHhVG4956mudidiXGg48Rk37LKrhzBF3JLvxoRiRAf6G","nonce":3,"parents":["8093a58fdff8361065e6ee13f35d03d31ccef3da9300346b9f0c0ad398c96504","b3a4682a0c724f746784a6f119cf646182c0a9b42e5f6a625249ae80983b5790"],"ts":1792902507,"cid":"poa-mainnet-1","sig":"1upfaouwG994TEv2SdS5JwbGV9RxWcmZLfZP7Gpip3jF7M7zvCcvRGkwW3CQEyu8MrMPZxNwu2JewU8uPXUZFTy"},"checkpointed":{"height":232655,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:50:44.427Z","checkpoint_height":232655,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}