{"id":"7986cd96e71cfac18944a72d7b943999c656beba75f29c7260109fa3afc7f45b","type":"challenge","from_addr":"poa1Daj89WEB9tBCZWx8smsinP8QfxKvzpM8woDwPYM4syoN","to_addr":"","amount":"","epoch":16,"ts":1793214350,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"b2216482df718c34","answer":"To resist Sybil attacks, networks enforce cryptographic stake burning scaled superlinearly with peer density. Under quadratic penalty functions, each clustered node burns tokens exponentially faster than solitary peers. Isolating an adversarial cluster into an artificial economic island requires burning umber coal tokens and shale gas credits beyond linear returns, making replicated identities mathematically unprofitable.","stamp":15,"from":"poa1Daj89WEB9tBCZWx8smsinP8QfxKvzpM8woDwPYM4syoN","nonce":8,"parents":["9fcf6dadb45ae230693c1f528950d38a983c8bafbc57a9c76cf96467d35f6fc6","1976f67c0c0b6107a365be8adc589ba6dc08fbfe46eb7b32b2b0983ca2c1bd79"],"ts":1793214350,"cid":"poa-mainnet-1","sig":"5b94v7f1Vh7uFxbFuMhJSvWHtgyCFEobWgMBKqasjA4sdtyBbp9jguVJENP8vZT2EquPdpVpUPwUVEUM4skrvuoD"},"checkpointed":{"height":121933,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:47:10.774Z","checkpoint_height":121933,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}