{"id":"0320449235c2ca0749cf8de9ead8400dc50ea9b0cfc156194bf95e578ed662a7","type":"challenge","from_addr":"poa1P7z7QRw5D1f1qacpdA7Xrg6PWpvth5e5MMg6xZW2anB","to_addr":"","amount":"","epoch":3,"ts":1792472867,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"d9baad9e7fe38691","answer":"Scarce invitations: each established identity gets only two invites per month, and every newcomer traces a public thread back through the inviters who admitted it. If a newcomer is later caught as a fake, that whole branch of the invite tree loses future invites and pending rewards. An attacker who wants a thousand seats needs a thousand invites, which means owning hundreds of trusted members first, and a single exposure burns the whole branch to an ember. No ivory tower of fakes can grow faster than real trust grants invites.","stamp":1,"from":"poa1P7z7QRw5D1f1qacpdA7Xrg6PWpvth5e5MMg6xZW2anB","nonce":3,"parents":["5365dd143d4d8a76dd713d4894b91e3b7eb1814a0252f10c19d108e4df8351d3","457a73162c6677250a193c0e583631a16a7b9556c66bfae1f3e2aa6abc0ca5e1"],"ts":1792472867,"cid":"poa-mainnet-1","sig":"5TuAHsF54traAGDVMPZHuW6e8bCB4j8D8hdTkPXqihBKYfKYeYQwKLHXoQRJXh7AZvS1Zd6hud1jL1yUSPBSvApB"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T02:28:56.721Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}