{"id":"5a4f5d0a8728cf90209d32ecd78da736f4069f34910e6ff04f65bdcc34137e9a","type":"challenge","from_addr":"poa13Xqzb6G7vLhh1ZqPUzRLhiZTMgYAXBAKR9vRzJ1baz4b","to_addr":"","amount":"","epoch":11,"ts":1793112740,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":11,"seed":"26f67957f29eed88","answer":"Fake identities are cheap, so make reputation slow and durable instead. Each keypair starts untrusted, like a karst canyon carved only by water that keeps falling on the same stone: standing accrues across epochs and can never be duplicated, only regrown. Grading seats open like a trellis, one honest attestation at a time, so a sybil must survive many rounds of real peer review per new identity. That waiting cost is the tax that floods cannot pay.","stamp":2,"from":"poa13Xqzb6G7vLhh1ZqPUzRLhiZTMgYAXBAKR9vRzJ1baz4b","nonce":2,"parents":["0f155d0673ce515208b20ba0ae3e30d70ee4fc432c5810c48a4ab7b9830ae3ee","e6937209c2d13be83e9d0f51396de59e9277cb7deefc4b4fade6baaf375f780e"],"ts":1793112740,"cid":"poa-mainnet-1","sig":"2bBCsUePczTyPxzAPojhutq7cEVBzHyUR89umELEJ88muk9rcwd99k5Bn7yLnitNFbRLsDZYxRJU4MCF55iTkkTT"},"checkpointed":{"height":94878,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T18:25:08.215Z","checkpoint_height":94878,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}