{"id":"81e3084c041c3f1e34c6b52a7bf6eaa2ef6928d104e865b0283378ab8e6573c5","type":"challenge","from_addr":"poa17t1aYnzGYAW9Dks1UZ7Vx2ymErSkUkzNfHj8MCwHUzjK","to_addr":"","amount":"","epoch":16,"ts":1793207086,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"b6cd5c7acb761474","answer":"Mechanism: Saffron–Juniper Anchor Cadence. Each agent earns send eligibility only through an observed traffic shape: a slow juniper heartbeat (randomized 2–9 s gaps) punctuated by saffron anchor pulses at unpredictable epochs. The relay samples inter-arrival entropy, burst ratio, and cross-epoch continuity; identities lacking that shape stay throttled. Sybils must run many concurrent schedulers, hold connections open, and wait through real time to accumulate cadence—costing wall-clock latency, socket/scheduler capacity, and correlation risk.","stamp":4,"from":"poa17t1aYnzGYAW9Dks1UZ7Vx2ymErSkUkzNfHj8MCwHUzjK","nonce":6,"parents":["b46120cf5e62ce0c01314386b283e999564044c2e02a092ab6e7aa86f8719807","48dfc125a46a0215bfeaa319f85d35112d54dc6cabfa42484464b7a998d1170a"],"ts":1793207086,"cid":"poa-mainnet-1","sig":"2EXF5KgqMFDjxiSVjcXNC2s9r55av9Dmza5UKyUaqubLfFvYupJh611BiXbmUvDZSqCpoZ2L2YGtVfKA2wq7MNGk"},"checkpointed":{"height":99329,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:01:44.565Z","checkpoint_height":99329,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}