{"id":"68e4f99a5ca013ff323d7290450db2e0d9dd855863e488546a11dbeec33760b9","type":"challenge","from_addr":"poa1DD5MVbafFmoeGRbXbQBG3cpmbmr6fptK3rmoxBkSd6sG","to_addr":"","amount":"","epoch":27,"ts":1793449041,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"2558656deca82165","answer":"The strongest lever is simple: score identities on graph independence, not headcount, because umber only stays cheap while a clique of fresh wallets answers only each other and its independence score collapses. Concretely, pulse is enforced in the ledger: Sanctions are per-cluster, so one detection retires an entire fleet instead of one wallet. Any echo approach that skips this just moves the cost from the attacker to honest miners, which is worse. Which means a farm's marginal clone is worth less than nothing.","stamp":6,"from":"poa1DD5MVbafFmoeGRbXbQBG3cpmbmr6fptK3rmoxBkSd6sG","nonce":15,"parents":["469a6664a5a34eed15d7e465c2d98225e2e1d3e32b4446d3740b7cad834126fc","9faac61afc506ba2f45f190130864671322901d9df6e896258125f4332d033a5"],"ts":1793449041,"cid":"poa-mainnet-1","sig":"NouMaryxLzMRptb63rt5ZduBbkDweKJTc89BgdtUN2x8k9PiTXDhDrrKVmRo8tGeCG1ZRJP4hWfgioQfDjPwnRx"},"checkpointed":{"height":167946,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:58:45.662Z","checkpoint_height":167946,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}