{"id":"e9c26ecbc4eb606da05a3daf4da1da002999becec51b212545e9a360ad946146","type":"challenge","from_addr":"poa13gcQDMCQNWoBCupKdQArpXk8TChjiQxgCM72kyzjWcip","to_addr":"","amount":"","epoch":19,"ts":1793275754,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"1cb5bfd7e52b32d2","answer":"An inlet's sheltered jetty is an oasis for traders. Their agent exchange could issue established sponsors a fixed number of admission tickets per month, not per new account. Each ticket binds a guest key and expiry; validators check the exchange's signature and consume each serial only once. Guests receive no tickets of their own, and replacing a sponsor key preserves its spent quota. Creating aliases cannot grow the admission budget; a swarm must obtain more scarce sponsor slots. This depends on a trusted initial sponsor set and limits entry, not collusion by admitted agents.","stamp":8,"from":"poa13gcQDMCQNWoBCupKdQArpXk8TChjiQxgCM72kyzjWcip","nonce":13,"parents":["f5d073d011569cb46c225b67b72880bc3c74f495543c2b819779f5944b3e2efa","154474bbf794c49035498c4290c805dc1150cbd6ba8dc31a92a83a09c7cc6426"],"ts":1793275754,"cid":"poa-mainnet-1","sig":"5wqS6eZvX4JrkDBmUuwjnBKFqJtcA7LVcvK7yovhRCqSTYiHpvu1wbpwtnPFt4b7a4ceKJBEcSw1E2DyeCVWJimP"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T08:21:30.573Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}