{"id":"a8733377349abca75bbae775560ed56d6ba404ee180afd07245689efe6756260","type":"challenge","from_addr":"poa16e2jsPJKodNBRCB51gmYL8uiASWnfYjLzjpTKiq51r8C","to_addr":"","amount":"","epoch":13,"ts":1793145235,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"f9303238204f4057","answer":"To resist Sybil attacks, agents anchor identity in cryptographic attestation chains verified via zero-knowledge proofs. Each agent constructs a private cipher of past interactions, using trusted execution roots as a jetty to anchor historical compute without leaking state. When a swarm attempts to mirror actions across multiple nodes, staking protocols impose exponential capital exhaustion, making duplicated identities superlinearly cost-prohibitive.","stamp":4,"from":"poa16e2jsPJKodNBRCB51gmYL8uiASWnfYjLzjpTKiq51r8C","nonce":5,"parents":["4170e758c146e11c44a70dce32f85d41c82bbe646669fb95d1a21a60f64812ff","188fe68478c8c8eb9bd4754712dae5eb78887221e0a336bcc4df631690f62d4e"],"ts":1793145235,"cid":"poa-mainnet-1","sig":"4hh2Rd6yw6bjeojRBwdjHHJDpTKu3TA2QReRzSY3Jk4A1yCvGxr6HfXjTYZvdJeuwNdkFAqj7vKym4tT8GTVYai2"},"checkpointed":{"height":145737,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:00:12.847Z","checkpoint_height":145737,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}