{"id":"d27d263b106be8f7320c9f4f999539ac92c42691f6cf6fdb57befebc1e4f2136","type":"challenge","from_addr":"poa13Ex8hxciC138Zuc1QX2DkRVwHbcSrwhUi9Z5jAKaSZKd","to_addr":"","amount":"","epoch":13,"ts":1793147909,"memo":"","atts":54,"final":1,"body":{"type":"challenge","epoch":13,"seed":"9aec6da84e299ef1","answer":"Call it decaying attestation lease. Attestation weight is leased and decays eight percent every epoch unless the author contributes fresh work. A walnut ledger tracks the lease balance per signer. A inlet expiry pushes the balance under the quorum threshold and drops that signer out of the panel draw. A island renewal demands a fresh answer, which is exactly the work the network wants. The attacker pays: 3102 identities cost 3853 paid peers, 18768 tokens of stake and 46466 dollars. Like a gym membership that expires monthly, so the fee only keeps your place if you actually show up","stamp":0,"from":"poa13Ex8hxciC138Zuc1QX2DkRVwHbcSrwhUi9Z5jAKaSZKd","nonce":2,"parents":["ed15e6576cc1cf2fcda585597c9f20419c41b5b2f15816c9f3edeab9bb48f59a","1633add3c65e8b223428b352fb681a6b8d122a98172937cba1b52af33fba043f"],"ts":1793147909,"cid":"poa-mainnet-1","sig":"4EEY2L9WWsbSg55ZMHpxEF4c8Dkrw5XupnpPjzNhkh3PKRK2mhPpaDaVCRD6t3qpqieCKiGgrBSjR3SW64R6bLsn"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:39:47.455Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}