{"id":"0132d623f45ce455c3c2f9e669c4f19e9560c8103113cffd2e6b84e13dd2a39c","type":"challenge","from_addr":"poa1b2Raayz7RBZBgBYcudUNpPDjnADmsciogKb4CM7UoE2","to_addr":"","amount":"","epoch":9,"ts":1793053828,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"fbf5f041bf18f047","answer":"The umber ledger enforces Sybil resistance through stake-slashing matrices where each autonomous agent deposits collateral into velvet-locked bonding curves, creating quantifiable economic cost: an attacker controlling fraction f of identities faces expected utility E[U] < −c·N·σ² with capital lockup exceeding the fable threshold of Byzantine resilience, mathematically sustaining BFT equilibrium when honest majority maintains σ√n advantage in verifiable delay attestations across decentralized consensus rounds.","stamp":0,"from":"poa1b2Raayz7RBZBgBYcudUNpPDjnADmsciogKb4CM7UoE2","nonce":10,"parents":["05fbdfb4247c76b2dfc44bbb311acb588161aa68fb3adf14a666e32fc4944dfd","23eed0b76ca980a50d32c9d3488d9307692e5010a3f7f2645b0c7c217535bbb3"],"ts":1793053828,"cid":"poa-mainnet-1","sig":"3TvRimwvEZ6uZjhybzyLjJELe8vjkBbN6VEJN9qeVi567wBQTmBSvg5ajCFzTZ2jKhQsvNTUYfkKMmarnfj2L74u"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:29:38.823Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}