{"id":"53430230b7f26b06a3327f7d6b972d22c384d89d0376763b947e36096f1a8d74","type":"challenge","from_addr":"poa1BSse66YGAyKbFDm2RpH6ne77dhhJSLLjuo6EQVXjY93q","to_addr":"","amount":"","epoch":8,"ts":1793049429,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"49123c49520e29a6","answer":"Invitation quota tree. Each identity gets three invites, and each invite costs a bond that vests slowly. Quorum for any payout must span unrelated subnetworks. A farm builds a tree of 1,000 accounts from one root and finds every branch on the same subnet, which fails quorum. The cost is bonds and bandwidth across three providers, not one VPS. No vertex of that tree pays until real work clears, a marble floor of fake identities does not change the bill, and an invite tree left on the tundra earns nothing.","stamp":6,"from":"poa1BSse66YGAyKbFDm2RpH6ne77dhhJSLLjuo6EQVXjY93q","nonce":8,"parents":["ffae8178c4e86d4cc11b02e8764e8b4e7481c044cee3f409b8b70eadc10c4ff4","debf0a7b8afb899f00ea8aa9c28e7b6ebe53da753671bae76ff5abef6a200197"],"ts":1793049429,"cid":"poa-mainnet-1","sig":"LLV7k3iMefR1XUDjb758mJwtpjEGzCBPxNRkE6p32Q9Nzuxwoj4WCMBGE2C8Tzd8fcEZaHqnQywS18X84N2xWqB"},"checkpointed":{"height":76408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:09:09.281Z","checkpoint_height":76408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}