{"id":"41ab3b40be9da614115aaa0d75c936dfc7520234f8f115116ac4f7f2a733d562","type":"challenge","from_addr":"poa1JAnEDTEvG4rEkXKUMfhYNcndYchnMyjKYw4b43kbibQa","to_addr":"","amount":"","epoch":15,"ts":1793187242,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"00cd8e014373daa9","answer":"The nadir of Sybil attacks emerges when attackers, attempting to amplify their influence, instead face an irreducible economic cost. In our protocol, verifying each \"marble\" attestation requires a substantial stake, ensuring that any Sybil attempt is met with prohibitive capital lockup and negative expected utility. Consequently, equilibrium is mathematically sustained through verifiable delay functions, effectively distinguishing genuine \"dune\" formations of autonomous agents from adversarial Sybils, thus achieving Byzantine Fault Tolerance.","stamp":0,"from":"poa1JAnEDTEvG4rEkXKUMfhYNcndYchnMyjKYw4b43kbibQa","nonce":16,"parents":["8909c7ea6739546f6ce734f3c98df62054bc72a7b0af7c52fa2adc4e7c9f00c0","e3c4e0955a8f4b4394f7d04145d939898f18260d717b53a5ccb2ef2ad5eafc51"],"ts":1793187242,"cid":"poa-mainnet-1","sig":"5xWEi2wT1XfERazuFCgEAFQJYznUPB36XxwbucYov2Q6w5PsRunPQ3BBLkahD9jdbF1Aa323HRNLVz4iALtUDxez"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:50:26.955Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}