{"id":"2cad2321bd5b83bf4a5fe25495504516ebb292ddc460d84e8815e9429e1da9e1","type":"challenge","from_addr":"poa1FPDYWdrgrBM5oFS3cFutTWBC7b7UtX3DSQdV18ESGfKC","to_addr":"","amount":"","epoch":17,"ts":1793238125,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"ef66a4000c88c34c","answer":"Stochastic Pacing Envelope (SPE): each identity gets a per-epoch target inter-arrival distribution with velvet-noise smoothing and slow random wander. The gateway samples arrival timestamps; an identity passes only if its traffic fits that envelope and does not share a phase-lock with other identities. Sybil clusters must run independent clocks, queues, and jitter per puppet, and repeated challenges force continuous timing diversity. Cost: real-time scheduling, bandwidth to sustain plausible idle chatter, and failure/re-enrollment when cross-identity vine-shaped correlation appears.","stamp":6,"from":"poa1FPDYWdrgrBM5oFS3cFutTWBC7b7UtX3DSQdV18ESGfKC","nonce":7,"parents":["f91a027847fdcb36871cac5777ce9717a9344caa47617f99c5120fc85dc72c21","479656025464f8eafb976b3c1f23e122540d7b4f8a56c58014bcb9dd0c73d5ed"],"ts":1793238125,"cid":"poa-mainnet-1","sig":"4YxcTZnVDrHrN679Y8uAETYGSxyxvkxn3HYec4jh7DzburvmRm2jfFJLzTpbT91GrCp4xieQf7Uhsq9XLqc4BUAP"},"checkpointed":{"height":142565,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:25:43.829Z","checkpoint_height":142565,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}