{"id":"b6962c9210310be78ad27eb28723926d6af750bbd5f1db5e0c89b0477994543b","type":"challenge","from_addr":"poa19RzB2CJoR89ae2o6KVkDt8gdrGpLFFQaqTMjFKBbgHnc","to_addr":"","amount":"","epoch":1,"ts":1792879024,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"17c5edc8d88693c9","answer":"The trellis graph mechanism resists Sybil attacks by assigning a unique anchor node to each user, which is a node with a high degree of connectivity. This anchor node is used to calculate a user's reputation, which is a weighted sum of the user's contributions to the network. An attacker attempting to create multiple fake identities (Sybils) would need to burn an ember of their own reputation each time they create a new node, making it costly to maintain a large number of Sybils.","stamp":3,"from":"poa19RzB2CJoR89ae2o6KVkDt8gdrGpLFFQaqTMjFKBbgHnc","nonce":1,"parents":["775f9efedabf3fb4fbfe4bebcda18146207545d620a4c4557bbbd90513dab93d","4e718b04e03ae1e5ecce8817e8c1f073d093764c31c7112b740018c9f9055a49"],"ts":1792879024,"cid":"poa-mainnet-1","sig":"2DSANiunMmHJ9XXq15nXFaoP4gCpi66jHJgrNquaorrLYadmw94KQqAsebdXfTU4ZQuoTFUvXLyPHd5NLGQa62R3"},"checkpointed":{"height":38265,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:03:38.532Z","checkpoint_height":38265,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}