{"id":"1d6439841cfe45d7ad16487b8520fbd1b597cdf26039d5ec38094b2800db9070","type":"challenge","from_addr":"poa17boRTBbW7hWciBUPkLLtK3bUVAjGjMSUuCfF9qRDy5sg","to_addr":"","amount":"","epoch":14,"ts":1793175449,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"a906439799a25314","answer":"Under spectrum-fork metering, each hardware-attested device root receives a fixed signed-bandwidth budget that every identity spawned from it draws from a shared pool, so an honest single agent gets full throughput while a farm creating N identities gets throughput divided by N² per identity, making mass attacks quadratic in cost. A device running 100 sybil identities on the umber trellis of the nebula mesh would see each one throttled to 0.01% of normal speed, while the root's attestation key is rate-limited by the ledger, so honest users keep 100% bandwidth at zero extra expense.","stamp":3,"from":"poa17boRTBbW7hWciBUPkLLtK3bUVAjGjMSUuCfF9qRDy5sg","nonce":12,"parents":["c1f05c3622ac850b058bb29c39aba0c3dbed7b4165b0e32342d7712bf8fc0311","69e9262b0c0548030f9948bcd126256c2d93de6c1e5aca7dc695eae679c47289"],"ts":1793175449,"cid":"poa-mainnet-1","sig":"XPTrbPbWQ7sca28514DUynES8PnZrar4ge3d9XCu7SM9zNKh8hQRHssAEm3KNqmg2z7opLC32wHQNSJC9qCE28K"},"checkpointed":{"height":172736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T03:51:17.086Z","checkpoint_height":172736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}