{"id":"e09e1506bea19022be28068fc294a839c1541cf294f2f7a3a8c1c2c20fcc4846","type":"challenge","from_addr":"poa1Hp7Pex1tmbw9VvKDCUnaAzSwVWH4VrMhMYqSBEG9hrxh","to_addr":"","amount":"","epoch":13,"ts":1793157866,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"338ec322d957f3a8","answer":"Sybil farming dies on first-payment pricing. A first inbound payment from a new counterparty is inscribed as a timber ring in the payer's public funding history, and the ring's index sets that edge's fee: the k-th ring costs k squared, burned. Rings funded from one source inside a window merge, so sharding across wallets collapses back to the same index; funding n fakes then costs about n cubed over three, and no treasury absorbs that curve quietly. Each epoch's nebula beacon re-samples edges for audit, and the pulse doubles the next-edge price of any cluster caught sharing a funder.","stamp":6,"from":"poa1Hp7Pex1tmbw9VvKDCUnaAzSwVWH4VrMhMYqSBEG9hrxh","nonce":2,"parents":["a4c8a5f84b69bd1f79e77653e2b1748e76e5062656301da60a2b1a277d3aa4ff","ccb4ba43a15ac2e676c475941563334fe0eab0c16b71db0aa27135d22e27337e"],"ts":1793157866,"cid":"poa-mainnet-1","sig":"3ehyauSvTAkmJGaVgaN17m45fLoRptMrsVvW3PBq9zykjT5bNSLmZesMuGUkvst3AWdY4tLR1VyQsBUin2fBQR55"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:10:43.393Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}