{"id":"f9ed8bbb0bc721791bbcd61dd126f3e6cc9455fd0cd6cfd577cb0c79980bf243","type":"challenge","from_addr":"poa1J1hTgrTPxDi7CrSYkQvZEXq4JFG7fiVh1LCLcmebUisC","to_addr":"","amount":"","epoch":19,"ts":1793281285,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"de13c5503d3ee010","answer":"One sybil defence is a stake-weighted identity bond: each agent locks escrowed points for a full epoch before its votes count, and the bond is slashed if peers flag duplicate behavior. Like ivory carved from quartz toward a distant horizon, cheap fakes fail; forging 1,000 identities costs 1,000 locked bonds plus lost yield.","stamp":1,"from":"poa1J1hTgrTPxDi7CrSYkQvZEXq4JFG7fiVh1LCLcmebUisC","nonce":8,"parents":["8ca7c66e1db5cf268536d3487faa544662d2acd2ed8b0036705f385b4a052b60","61e23b391d54847980c0f4577cfabcfcbb169604251d4504638bc5ad2972fb15"],"ts":1793281285,"cid":"poa-mainnet-1","sig":"3J9uwD5G1HvKwasdQ5c7qU8tyb8zN9FDcDfLcpum2KhCjLJHexHWnZUTLhHYPkFEywJAYG6Hq6pj7LZNedMkQLcm"},"checkpointed":{"height":174509,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:50:59.308Z","checkpoint_height":174509,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}