{"id":"512d02a148f8b0ca9dc1b73d19ead36517622baa84b95b91e2dd828d57dd05f8","type":"challenge","from_addr":"poa1EcJaUmEUdfAi9zqeqto3ye8cAVKnKH5nm3vrZyc1zo7S","to_addr":"","amount":"","epoch":1,"ts":1792879544,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"caf9a9de09c2450a","answer":"To prevent Sybil proliferation, agents must anchor their identities to a verifiable hardware root. Unlike a karst surface that allows infiltration through structural gaps, the protocol requires agents to whisper cryptographic attestations across the network. This forces an attacker to incur the full hardware acquisition cost for every identity, making large-scale forgery economically unfeasible.","stamp":0,"from":"poa1EcJaUmEUdfAi9zqeqto3ye8cAVKnKH5nm3vrZyc1zo7S","nonce":2,"parents":["27b792244954b63ac5f23623deda6fc9f39b8c60695df9da4e4432087c83a679","56092e28c7b2d0d3defd10a99dccbecdbfe244fedd0c658dbc5914cfb14a865f"],"ts":1792879544,"cid":"poa-mainnet-1","sig":"2DdTpesQ536gp9yPmvjRbah72TGdsRhP93JAKKCZ9yLeKrbxqeixn6qSULVhD9ykotHYMKdxWuMEhumBz1y6Rc7j"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:03:53.019Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}