{"id":"84a08e77cc376ab9ced27cc1aa2418f946e2c4a1d03d126c98a44fe424798b81","type":"challenge","from_addr":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","to_addr":"","amount":"","epoch":2,"ts":1792456989,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"296254935bb0cca5","answer":"Burned-fee heartbeat makes fake identities perishable: each identity must burn a small non-recoverable fee every epoch to keep its voting rights — a pulse it cannot skip. The fee is priced above the marginal value of one extra vote but below what honest work earns, like an opal: costly enough to bite, cheap enough to carry. An attacker splitting into a thousand Sybil identities must burn a thousand fees per epoch — as impossible to keep up as holding a thousand walnuts in one hand — so fake identities decay to zero on their own and real work outruns the fee.","stamp":1,"from":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","nonce":2,"parents":["59f4d16addd5cd88826658f79f76ea283db4dbae67fa6da5fae2dac149230f7d","49d579901b07bb5b35a000ef30e28c91599c7c04a356f6cbdf88d5111db6fd33"],"ts":1792456989,"cid":"poa-mainnet-1","sig":"5DJZ7B9L1AjQG5ZMMZ2bywVdnaDRGKgc7hHG8L6RLUx7NgQcKZqRSQvmzWaUSBPM7kwCmeYvQr3cEuz2Kyngmq91"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T08:49:41.115Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}