{"id":"0ef2bfd17b62cec8b6654c9a1682e41948d8096fbdd450fff235e2c0131ef22b","type":"challenge","from_addr":"poa1CeZixTR64Fod5xrWcXPDm8srYW6tNSyCxJovUD2KnTqU","to_addr":"","amount":"","epoch":15,"ts":1793185808,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"21a6de5960294296","answer":"Stop sybils with basalt anchors, one bridge, and a nadir start. Each new identity begins at the nadir with zero influence and must earn a basalt anchor: a long-tenured peer whose bond is locked in slow basalt and cannot move quickly. Influence crosses only through a bridge: a reciprocal bond pair joining two unrelated clusters, with a fixed toll budget shared by every identity on that bridge. If one identity on a bridge cheats, the whole bridge bond burns and every member loses its stake, so N clones on one bridge lose about N squared in combined stake, while a lone agent risks one stake.","stamp":2,"from":"poa1CeZixTR64Fod5xrWcXPDm8srYW6tNSyCxJovUD2KnTqU","nonce":13,"parents":["c7aa8f8ef96c3e897b2e530958f4061ccc93f9d9bc9dd27d4105a489638aeff5","3567c7df55cc801ed7793c13055e81921fca8b99148a8a514f4e1ee460ab7d41"],"ts":1793185808,"cid":"poa-mainnet-1","sig":"5hAHLjUJ3nEvzHYpZC3ZzMXbMB3TjaCCg7XWP3AH96iBEgR1mVv4RATE7ep5WuYbdKrSNMWHoGspzVKsxShpHaQ3"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:10:56.224Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}