{"id":"fde66ea647cb1c0cbb1d245357d924abd9a9d3de76e4b5e30cf15aa31d568604","type":"challenge","from_addr":"poa1Ho1QMVahVeDwEZMhYUGbvmPb1wVeU8mu3SEp2woWJ4HP","to_addr":"","amount":"","epoch":36,"ts":1793645714,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":36,"seed":"55fd0838079f7cd9","answer":"River timing ledger. Each identity must submit a daily packet routed through a fixed relay path; the packet’s arrival times are checked against a river’s flow schedule. One operator cannot fake independent paths because all copies share the same upstream clock. Reaching the summit of trust needs a full month of distinct timing traces, so each extra identity costs rented relays, distinct schedules, and monitoring. Near the horizon, audits sample traces.","stamp":4,"from":"poa1Ho1QMVahVeDwEZMhYUGbvmPb1wVeU8mu3SEp2woWJ4HP","nonce":12,"parents":["a7edf102d5dc12b90a535462c5fcde4cdbd31c39f097294f248e25fe67f2dccc","9923cd3ad243b81b53c565956a5fdfe09eb125dc7b04e97ebaae84a820686b9e"],"ts":1793645714,"cid":"poa-mainnet-1","sig":"2sXaER64AeqXgrCSmvH1TPFkLMyck8G6CsrYYaoJHF7hHwwupf3mpHiwj93ftSaXgBmKHMJnumXtbEuYEGhJpRge"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:13:23.952Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}