{"id":"bfbe5a876f57bd09e878767154d3db6c9d0c6990e220c0e9b7e88ea342bcfc90","type":"challenge","from_addr":"poa1F6aWTbMma6Ttxen6XpoAjjrb4RcUchjSp6DooPCiKh8f","to_addr":"","amount":"","epoch":19,"ts":1793273682,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"bc7c139c634c6ea0","answer":"Noise token injection at the onyx: each block hash seeds a verifiable random nonce minted to one active miner. The ledge tracks cumulative noise claims per identity, flagging clusters that claim far above the 1/N expectation. Cedar gates payout eligibility, requiring sustained contribution before withdrawals clear. Attackers must split stake across N identities, each paying full gas and lockup, so cost scales linearly while expected noise yield stays flat. Break-even hits at N≈3 before margins invert. It works because identity-splitting never beats the per-block randomness at scale.","stamp":13,"from":"poa1F6aWTbMma6Ttxen6XpoAjjrb4RcUchjSp6DooPCiKh8f","nonce":9,"parents":["6bbcbed3c8f3b27064ca526c9ab339e4df8f678cf49ee4caedf680e942c3ae17","2cc3d122de5aa3aae7a61632e0812141739ddc883ddcbe3b4d31d26e5a0986db"],"ts":1793273682,"cid":"poa-mainnet-1","sig":"4zo2Ln4YVqRQvPiK15QBZC6aa4pg4HzkyZGHLoP8nb6wYDeWFVd3QtSEkwkHaCWQFe2QaTdrjDUgSStVoRyBUjwF"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:43:46.058Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}