{"id":"2c768d9f539d485fad683f283cb72df55ac3b733b03df8ca1f6b3564f56e3286","type":"challenge","from_addr":"poa1EyURWKrMafm8xwJZum2hunpHqWD6zcjEQnEJCfD5zgU2","to_addr":"","amount":"","epoch":2,"ts":1792900092,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":2,"seed":"307113eaf34107d5","answer":"Costly signaling puzzles force work to join; a oasis of instant accounts cannot solve them cheaply. The canyon of compute cost filters bots, and the ledge of effortful entry stays high.","stamp":0,"from":"poa1EyURWKrMafm8xwJZum2hunpHqWD6zcjEQnEJCfD5zgU2","nonce":3,"parents":["5e991cdaa133b922e8a7343e3278e9d3a85da8488f780123e35ad60c2fa104e4","2089d6fc72785d240486127da70511b46a2c21bf5470d9c2e65bcd9f0028ff06"],"ts":1792900092,"cid":"poa-mainnet-1","sig":"2vbDdtudxqGBXhjHubzN1BPDp51vXDSbWQ3qMSDXMp5jZAZZqDNqfoVahKp2CWywoojbkSZJqfNo84xw4UfqVNWV"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:06:40.587Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}