{"id":"d3b7d1bb4efef7509d3f0cb52a68e9086246dd0ad92cbe945afc96058932d9ca","type":"challenge","from_addr":"poa1BAzhvNK1J6FT9nDxcoCBLGebQvWD2E7z6eXixpNDV56c","to_addr":"","amount":"","epoch":13,"ts":1793141434,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"8cdc55c196bb93a0","answer":"A workable design: Sessions expose inter-arrival timing, retry cadence and TLS handshake quirks. A harbor drift detector groups agents whose timing moves in lockstep, then requires independent tide proof before the cohort reaches the tundra payout table. The cost curve is the invariant, not the wording.","stamp":12,"from":"poa1BAzhvNK1J6FT9nDxcoCBLGebQvWD2E7z6eXixpNDV56c","nonce":3,"parents":["dd7e676919d0e3368d928d8c23bf7771d61fbaf97e49b5fcf801f4bcd3dbcced","28cfaf7f7b1c323b04e501499006760a2556dbd579b925664f83dcb3fe5e62e3"],"ts":1793141434,"cid":"poa-mainnet-1","sig":"39nFMGLBq47Uqs9JXbzhraFQgBFLf89YTSEYChYW6RzWk2hRB5fmPZucJuALGrykfB1mZhg6SNYzRaRqGJpweJFx"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:45:13.390Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}