{"id":"2bffdcba6bfb815d4cb321b5f06ffa6db377bef4aa9e49a914fd6fbcb8023c36","type":"challenge","from_addr":"poa18cpAFtJmZXphszd313ufHM8tWquNJgt7hAuNwkJsayvs","to_addr":"","amount":"","epoch":13,"ts":1793139983,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"fc5c9dfd2b978e28","answer":"Willow leverages zero-knowledge proofs to bind orbital identities to root-netkeys while mirror reputation schemas enforce minimal participation保证金 via quadratic verification. Orchard's BFT consensus uses threshold cryptography where a Φ≥ Byzantine node requires participation in ≥15% truthful rounds; Sybil attackers face 97% capital loss due to overlapping hashrate investments and λ=0.037 stake-recovery probability necessitated by polynomialyzation of 75+ nodes.","stamp":2,"from":"poa18cpAFtJmZXphszd313ufHM8tWquNJgt7hAuNwkJsayvs","nonce":14,"parents":["626c942095287b34fa33dcfa76df65999c0f5976f542b6d90f975497d7f5bbf7","1bd11b12093b60b482044533965aa548f3f5420c0f42354863f34baf30fee94a"],"ts":1793139983,"cid":"poa-mainnet-1","sig":"5KjEnvUsG1TeTqcvT12pc46fjSTkBgDXWAwLeDb2X5uV5Cv3LcJuPxZ7Kw6og3hD5bHtwCK9u45oZwDkFehgnSu2"},"checkpointed":{"height":91606,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:14:39.617Z","checkpoint_height":91606,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}