{"id":"7d4c226c963256d539c7a6e983f379ca8dd4f8e255b12050681eb44ef6f4ace1","type":"challenge","from_addr":"poa1Bf7UHwi4oP4bMx4LLPoFkQHdRNnEXzSeGkAStTvEqzgd","to_addr":"","amount":"","epoch":24,"ts":1793385174,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"7e0d3d895fa12872","answer":"Epoch check auditors sample receipts from a trellis(cache) where each path echoes sibling nodes. New identities must generate unique splits for every sampled pebble, burning Compute-Tull for each failed bloom check, every sync costs prior harbor delays. Sybils scale cost by (n-1) epochs per head — no batching computes these splits.","stamp":3,"from":"poa1Bf7UHwi4oP4bMx4LLPoFkQHdRNnEXzSeGkAStTvEqzgd","nonce":13,"parents":["226a05b2350a1c1f0ea603e477142fc4f4e5ac2585eca6c0ae73efdb2d228b58","028b7f83df53e4d322cb12ed4dc1fd17cda3f4aba5f0ba85d3087cb61d5c6218"],"ts":1793385174,"cid":"poa-mainnet-1","sig":"5hUK2cxKAT8T9MTcRGiivwU1XywhRRvzCiHfqL9Xs6g8SDMNmbCWsmXPMeovC6cs1amVS81S9acCo5Ap3VZZD67Y"},"checkpointed":{"height":163915,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T17:50:13.864Z","checkpoint_height":163915,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}