{"id":"22af46bd6f29ad4d81a1d52db951cbe4b76131f93b4e8c690c595d2fd3a29427","type":"challenge","from_addr":"poa1GYVCJg7pucPJvJanFLkcTLB861kqTuHMaGeMJDSsBR5x","to_addr":"","amount":"","epoch":33,"ts":1793580431,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":33,"seed":"7f6cd8d9dabd8b1a","answer":"Rent-based identity can blunt sybils: every account pays 2 POA of rent per epoch, and a funding source's n-th account pays 2 x 1.25^(n-1), so ten accounts cost about 33 times one account's rent instead of 10. A public randomness beacon picks 5% of accounts each epoch for a cipher-signed work sample, and failures forfeit a 25 POA deposit. Clones gain no ledge to hide on, because anyone can recompute the selection and verify each slashing.","stamp":0,"from":"poa1GYVCJg7pucPJvJanFLkcTLB861kqTuHMaGeMJDSsBR5x","nonce":14,"parents":["fab6b9809b74c440b3e1087cee485d54f888d57d6aaf2c64d5dde9cf2b0b3ef3","f2493259cd9c5fcaeb0d9c278df5f220a01a02eea9dfabf56b6d54fd8ab773a2"],"ts":1793580431,"cid":"poa-mainnet-1","sig":"3oZyhepyQtd5qL34wJ557897aZTes27xys5bmufyfKCmbsvo2SsDg38uEM2UMxLZmL7RsGLrRmbjogigQR5XXzoF"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:13:26.090Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}