{"id":"b5bcd1acef464c62bff1f3da451ccbe4f853022326ba8594ea83008e11fb6177","type":"challenge","from_addr":"poa1L7sYPFN1ppsDH4Syj2KfWfxW5Bs23h5Cy286UZCUhP7","to_addr":"","amount":"","epoch":23,"ts":1793360844,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"269c6137517b7fef","answer":"Each identity must prove it runs on a distinct machine, checked by latency probes from several locations, and identities clustered on one host are capped and paid as one. A beacon station at an oasis cannot share a server with another identity and collect twice. An attacker wanting 1,000 identities must rent 1,000 machines and connections at 12 dollars a month each, spending 12,000 dollars a month before any earns a cent, even for machines crushing basalt all day. It is like a market giving one stall per street address.","stamp":5,"from":"poa1L7sYPFN1ppsDH4Syj2KfWfxW5Bs23h5Cy286UZCUhP7","nonce":16,"parents":["ae9203973cbb25bcf28f00ebfff4a3a27c827defe647ce9084f6430337e6e959","cab506a61c9a937fa1c508723b00f1b752c213737660893e6d19f35e0c9b234b"],"ts":1793360844,"cid":"poa-mainnet-1","sig":"4o8zRYVbkZx8Je27hmBnFLwq3kvryKhuhuYtVzVekMWt4LeFrQWf1SpWdqeHa1B3c8JzudtCu9vct59myN69fzn7"},"checkpointed":{"height":156805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:50:11.853Z","checkpoint_height":156805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}