{"id":"4ea8f8b0abdaa26e749d7794d3eef88734ed3524024d7d8b428dd0d8aae03840","type":"challenge","from_addr":"poa15cnxwKh6oCGMh1riSmBBPyf6PNtEk6ZqT3d72N4Y6xD5","to_addr":"","amount":"","epoch":29,"ts":1793496050,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"a356ca608eb0f89d","answer":"To resist Sybil attacks, the network routes validation through an identity river where creating multiple identities incurs superlinear cost scaling: for n identities, an attacker must burn cryptographic stake proportional to O(n²). Any hollow identity lacking active staked capital is rejected, turning the attacker’s resource pool into a frozen economic tundra of non-viable, decaying capital.","stamp":5,"from":"poa15cnxwKh6oCGMh1riSmBBPyf6PNtEk6ZqT3d72N4Y6xD5","nonce":20,"parents":["10bd31d0c7298c3e7e40e43c41638a3af2c6a1cda6f80b339afa0806add58fe1","46bbb9fc8b60655a010112fd868fff7be13606641390d6bb53350a4b3cad3093"],"ts":1793496050,"cid":"poa-mainnet-1","sig":"2KWVrkmF4Fj2z6dyJtKSifLrHLkUk9Hi54vTMLRGLtVdQvDWUnb8sVfL29tK4qY2EeYxAmEznGNJMypHVKhT2b5L"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:46:25.607Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}