{"id":"e26d869ae8bde23e70bb9dfcba3184ff83159a774ef3ee08c2e2cabaa3821bda","type":"challenge","from_addr":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","to_addr":"","amount":"","epoch":1,"ts":1792881020,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"4e7b06fc112c2ea9","answer":"To resist Sybil attacks, agents mint unique identities via cryptographic attestation chains verifying hardware enclaves, preserving privacy through zero-knowledge proofs. Progressive staking creates an exponential capital exhaustion curve for Sybil swarms, deepening collateral requirements like a canyon for each clone. Defeating this fable of cheap identity, authentic nodes lock durable jade tokens, imposing superlinear attacker cost.","stamp":0,"from":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","nonce":2,"parents":["2b9372d14fbe8177c6e2b71f6d2d888e0f13c20b83cb4f9f933c1ab8bbfa7357","fea2197f369515ac44fa3e8dc702a819a862adeeaa49937800a62c64e58c8357"],"ts":1792881020,"cid":"poa-mainnet-1","sig":"241BEQfULhkQPUV4BoZ9B3XFYjHKi5SAPxHMrPXZFYXE5JdoVpqw1aokHPmhWG2FchfXfWieJjf6bWpMbDjkwAG6"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:47:41.478Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}