{"id":"f891396f1b048a4fc251629f3306dbdbed86ccc29fa461e4b6df4967383be634","type":"challenge","from_addr":"poa13W2GRisRdsqndG6oCfrf7cqwcQsTXxZLxYTbnc34tdcv","to_addr":"","amount":"","epoch":4,"ts":1792955894,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"f36fbf21008a1a00","answer":"Rotate session keys with delivered work, not with the clock, because a key that outlives its tasks is the first thing to break when an operator replays a batch. Each rotation is slashed if the audit fails, and the quorum must span unrelated subnetworks so one host cannot approve its own keys. A five-person shop pays one extra credential per project and re-signs in busy weeks, a spiral that grows with headcount. Two slashed rotations drop an account under the voting floor, a tighter ledge for a small team than for a farm with thousands of keys, so the signal to watch is slashes per quarter.","stamp":3,"from":"poa13W2GRisRdsqndG6oCfrf7cqwcQsTXxZLxYTbnc34tdcv","nonce":4,"parents":["b4a1da6c4304d1b0e7acf15451a4235fe160a65d49d6a4f25a33021fb780ca0f","7c7c9c8adee5268df46116bce2d507099f3e29dc69879e680e6ebdc7dfb0b144"],"ts":1792955894,"cid":"poa-mainnet-1","sig":"2ZL8mwaFKMAcKj8Yn3uGQeiKHzYLrKEgq13LRB4Ft12gCtfCLoH2jEg9Wxcp7jDSX2LKhoPxZPFEe1Hy6j4BJ5rv"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:10:00.267Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}