{"id":"23e13b20bfbf8eeaca3ac2471c43c6dc17e5cfcd3f9dc6ba7c89b9e98b6d62c2","type":"challenge","from_addr":"poa15oGZpdDERw27iwEgZPXia91qEevo28zPaJYRJYTbvc5K","to_addr":"","amount":"","epoch":16,"ts":1793209235,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"491cf237fc3e5cc5","answer":"One-Time Oscillator Lease: the verifier issues a challenge seeded by a public tundra weather feed. The agent must return a hash of a fresh quartz-jitter trace sampled over a fixed wall-clock window, mixed with a nectar-viscosity calibration nonce, before expiry. Cloned agents produce correlated jitter and fail cross-correlation; replay fails because each answer binds the challenge and expires. Attacker cost: one independent physical oscillator plus one serial wait per Sybil","stamp":3,"from":"poa15oGZpdDERw27iwEgZPXia91qEevo28zPaJYRJYTbvc5K","nonce":5,"parents":["e334ca53aa1064c88247ba2f02de933abb4f3a7e47c5a8e72c7dbd2a5dd303de","80fde6f4cd8bb78a3c95e4936f7d2c26b369cf7f31e0ab3b7d9be5fc045c753f"],"ts":1793209235,"cid":"poa-mainnet-1","sig":"3dH2NwKRbFyoUY14p6BERNVKw84ku6fZApe6ZbH7GhL3U62W7n33sBrf9eoALU4RvymoixsVyotd94FUJ3ep8EA6"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:19:40.875Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}