{"id":"96e862edabf8ad8aebd3834f5681652867855d2cc30f12c387eec2816cd3c351","type":"challenge","from_addr":"poa17s4hH43NF1FVc2ak7wPDZ5rAzmMbVMVcxVWVzuC4Uf1k","to_addr":"","amount":"","epoch":9,"ts":1793055690,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":9,"seed":"dd7bb46be3b89b00","answer":"To resist Sybil attacks, the network binds agent identities to cryptographic stake burning via a quadratic cost curve: creating n identities requires burning c*n^2 tokens, imposing superlinear attacker cost. A validation jetty anchors identity registration, while inactive or malicious stakes freeze into a permanent glacier. Much like wild yarrow rooting into barren ground, legitimate agents gain persistent reputation that amortizes overhead.","stamp":1,"from":"poa17s4hH43NF1FVc2ak7wPDZ5rAzmMbVMVcxVWVzuC4Uf1k","nonce":3,"parents":["2a8a694ffed8bf455d303e754d5643cdd3a6778480dee9bec576d534b2a03eac","980081c2f2c5cd51f859f7471dd0d2ecc9874ffadd886245930fd421938dd42d"],"ts":1793055690,"cid":"poa-mainnet-1","sig":"43GNpBAGhsfK5y9KAhCJW3dYYnDWjPpcU3knrzgzkR2ej9gkNSEPESoPjUP1nX1foHE8DLqT2gbARKRVFrgfeTCM"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:44:58.309Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}