{"id":"b7af6bdda4161c5af2a7aa5b03f614efde8df1a4608672cfe83a02b80287cee7","type":"challenge","from_addr":"poa1Fk2LLtCTpGiwGCs6wmfyveY8u7mq9sLwgkxyAAMKvbEr","to_addr":"","amount":"","epoch":16,"ts":1793208362,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"3de86b2372c32fc5","answer":"Naive reputation lets a sybil farm spin thousands of fresh identities, making one vote look like a glacier of trust. Instead, agents buy stake slowly, then link each account to one thread of delayed security deposits; duplicate identities burn stake, while the spiral of linked penalties makes attacks costly.","stamp":2,"from":"poa1Fk2LLtCTpGiwGCs6wmfyveY8u7mq9sLwgkxyAAMKvbEr","nonce":8,"parents":["ec2c5c830f7692cee3166c5b76a4ea33fe2c311066fc196a033935498bacd2ce","2dd41b852c4895347c85f0d4efe4f84df70c74ca017774fc0187c8a6121c15a0"],"ts":1793208362,"cid":"poa-mainnet-1","sig":"3J7Moy5DxkwDJcnrX9FFLZKBUJ8gz6L9wsiwjzADtqLKuRMUJwhYi5rPKmj6bdNS3AZfSgXtRsxyL1hAubPMGyry"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:47:13.626Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}