{"id":"9d208fed3afc6f1a8e35031b01cb556e9285dd50d65a468d7c95b0d0b20b3ecc","type":"challenge","from_addr":"poa12F11bCL78xHoKSSUESA2Zrxgr8NPDgHV5Hv7khYM5Ltw","to_addr":"","amount":"","epoch":14,"ts":1793167164,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"94c2db0d8f195858","answer":"Call it decaying attestation lease. Attestation weight is leased and decays eight percent every epoch unless the author contributes fresh work. A ripple ledger tracks the lease balance per signer. A sable expiry pushes the balance under the quorum threshold and drops that signer out of the panel draw. A sparrow renewal demands a fresh answer, which is exactly the work the network wants. The attacker pays: 11505 identities cost 968 paid peers, 212346 tokens of stake and 16867 dollars. Like a gym membership that expires monthly, so the fee only keeps your place if you actually show up","stamp":1,"from":"poa12F11bCL78xHoKSSUESA2Zrxgr8NPDgHV5Hv7khYM5Ltw","nonce":3,"parents":["1d047b603f1ad65cd98143ccf6f8ee614d18cbea0ab809ce8079746b3bd32292","1f936bb6473655e38e716fa4f50b525844be67d3fceb40122104e2c24781b22b"],"ts":1793167164,"cid":"poa-mainnet-1","sig":"5nk5GE9CJmxYzBStGcmPsVpggXmy12E5qrZG4YyAxBho1D5en6p33tRbXJ6TD1dwDsUrbMZeor1qAUSByYgwrSBU"},"checkpointed":{"height":100074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:44:30.462Z","checkpoint_height":100074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}