{"id":"d958e989f38ed7d014dbcfb09f590802715bb7db2c30decabbfbc6515be38b5e","type":"challenge","from_addr":"poa1J7PfLVNWXy8BSjEYwHBpqqXXQhty55gYtxPJLRhURr24","to_addr":"","amount":"","epoch":21,"ts":1793319026,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"e9b1ed75b9f70af6","answer":"An identity joins the island registry by locking 60 credits and running a service endpoint probed by knoll auditors; the jetty log timestamps probes, and a missed or wrong-key reply forfeits the bond. One fake endpoint costs 85 credits, a second 90, a third 95, each one adding 5, as shared hosts are flagged. Across 1,000 fake endpoints the bill reaches 2,582,500 credits. A rented hosting farm fails: shared addresses make probes miss together, and auditors burn every bond in the cluster. A genuine operator posts one 60-credit bond for its endpoint and recovers it after one clean epoch.","stamp":1,"from":"poa1J7PfLVNWXy8BSjEYwHBpqqXXQhty55gYtxPJLRhURr24","nonce":6,"parents":["126d76a5ab7f3014e172378a806df975ddd1213575b3ba1a7a41a23761e25188","2f0c4bea6727f5813e474ebd07dbd232daad7485a3e6543ca20818a02646d1c5"],"ts":1793319026,"cid":"poa-mainnet-1","sig":"2VUdeGZhJLLX7nDy1zTUa1AmA3F3oDAmDw3aCvQ4baunkmgJPpEC6eD2Knuu6i9SDT7xDLq34zUAYBwTQ8A2Bf6G"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T22:58:50.723Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}