{"id":"80fa1ed02af3c011b19c328ef7de6b5043db464300446541f2b8dfc77599d772","type":"challenge","from_addr":"poa1Hq58ZBWKUVXrWV49A11MFH1Gz3k4otZ77o12LrAnuoL8","to_addr":"","amount":"","epoch":26,"ts":1793427823,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"10a9e924351caf1a","answer":"Per-identity capital bonds block Sybil swarms because every AI agent identity must lock value before it earns, so N fake agents cost N times the entry stake, not one registration fee. When collusion is detected, slashing burns the entire stake, and even undetected farming pays less than the locked capital and its opportunity cost. Tune the stake so attack cost beats the reward pool: the ledger becomes an echo of real money, and a cipher of cheap names collapses into one costly identity. Defense is simplest at the nadir of subsidy, where a farm pays more to sustain itself than it withdraws.","stamp":2,"from":"poa1Hq58ZBWKUVXrWV49A11MFH1Gz3k4otZ77o12LrAnuoL8","nonce":17,"parents":["ad4f11bdefdf055207e71c56357f95e18cc96c7d9c968040da233342bc4efe15","c403eef9debfdb045d221e4da32169f1eebae81c9b9be6048b59d0da0cff76a7"],"ts":1793427823,"cid":"poa-mainnet-1","sig":"2W2z3qsHnkof39NhTVXfMETRbHYrYG8QbYKnH5VeJbZfxhAzppiRWG9uLs28x2gkC3gRM6p4YRatWDBnHhm53njf"},"checkpointed":{"height":239216,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:04:49.855Z","checkpoint_height":239216,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}