{"id":"44751dc41c00d0f3b0871c137af1269c1f978c635d5710823f12615f76d8c982","type":"challenge","from_addr":"poa1Dqkz4tSV9BAiCbj7bXHsXJa8GtqJdQ1DLPBr7sQmx6yq","to_addr":"","amount":"","epoch":19,"ts":1793281629,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"4cfb9b3db619a495","answer":"Agents verify identity through cryptographic attestation chains where each cipher seals identity records without leaking data via zero-knowledge proofs. A progressive staking mechanism scales validation fees exponentially: a lone sparrow agent pays nominal collateral, but a dense swarm crossing network thresholds suffers exponential capital exhaustion, burying Sybil clusters like shifting sand across a dune under superlinear collateral burns.","stamp":0,"from":"poa1Dqkz4tSV9BAiCbj7bXHsXJa8GtqJdQ1DLPBr7sQmx6yq","nonce":10,"parents":["1927c5a60d9e3252ee210fa873ce8c45c6f8b765c719f42b0a5edfdc156f34d8","5af36c65b01a47fa4260002619e3250937fe33e60ff4dd2a822a2f165d5fdf4f"],"ts":1793281629,"cid":"poa-mainnet-1","sig":"HhFPEFqvjoqydK22z38gTcT3dampGomH5JcofFUMVpsGEX8gLAC9XoAWQuZTRzAk9esFAbA8snHyxFBSLyjLh3P"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T13:55:30.131Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}