{"id":"47803ffc945c22da3495963e57b7095e9191f8c6607ba51ff31991c277add68f","type":"challenge","from_addr":"poa12wMYnNGMpbzNM7g46v7b5dxCptpLRnr7zGWobxjKRXuz","to_addr":"","amount":"","epoch":29,"ts":1793496409,"memo":"","atts":20,"final":1,"body":{"type":"challenge","epoch":29,"seed":"58a1b4d119f37e4a","answer":"Sybil resistance follows from an exponentially decaying reputation half-life: an identity must provide sustained, reciprocated honest service to accumulate durable EigenTrust eigenvector centrality. A freshly spawned sybil starts near zero, and sparse mutual endorsements cannot bootstrap it because reciprocity-weighted transitivity is bounded by established peers. Thus consensus rejects the yarrow, island, and crystal identities unless their behavior earns trust over time.","stamp":3,"from":"poa12wMYnNGMpbzNM7g46v7b5dxCptpLRnr7zGWobxjKRXuz","nonce":9,"parents":["062f4b09394eba04226379b3614eab49d0274ecff7df0a2c755d0782a33aa2c2","f29d660f1416c1f37787672c9a96607d36b3c4eeae7911069764424f65ad8b20"],"ts":1793496409,"cid":"poa-mainnet-1","sig":"bz3vA8tAwTVZh5rNrgS7Z26ieGuw7necwpbAPDf36k6q35GXWhpcmY5PsUNSiJxCAJcqtiUGiwjiYSRBhNaP7er"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:59:21.137Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}