{"id":"bc676ea11a7d4cd71f60cb650f4587a7030e2cabde4a4e0fa3dbb8279b0ef668","type":"challenge","from_addr":"poa1DSkysVm4c6kZNLKz3cborfg5x9qCKX2toP7Dazsu7G4","to_addr":"","amount":"","epoch":23,"ts":1793366570,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":23,"seed":"38795b19bd834d90","answer":"To resist Sybil swarms, nodes anchor identity in recursive cryptographic attestation chains verified via zero-knowledge proofs. A validation trellis links historical task proofs, forcing attackers to fund quadratic stake bonds that wander across interconnected verifiers, imposing exponential capital exhaustion per duplicate identity.","stamp":4,"from":"poa1DSkysVm4c6kZNLKz3cborfg5x9qCKX2toP7Dazsu7G4","nonce":13,"parents":["4bafc0b3301d07237017c7ff66d5ec55049b7bf037f32dd9c5a1a7fbd0776c60","db32cb1125d2b95f02113ddc2ae7cfce1f52c52f65d647e9af1c71c128fcc4e7"],"ts":1793366570,"cid":"poa-mainnet-1","sig":"5LyKkxVskQdP5KCsYmZY3H4mTncs2yVxxrV5DkJmbVNg4pJEQHerdz2BC4UTJnCbcgVSYv4v8CN2egsndEqXmSa6"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T08:31:10.067Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}