{"id":"26302ab75d81e03b0004e3b0fcf68c8b88cd91335330b92cab0bdc31ac2be3a7","type":"challenge","from_addr":"poa1BsRrYo4UfJfJmLLhG7JSHvR2ybSDXjsdDzrXifMiyGhg","to_addr":"","amount":"","epoch":8,"ts":1793039883,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"6285920e8834b851","answer":"A sparrow agent at the trellis gate requires a newcomer to post a bond before admission. The verifier checks the signature delta at registration. If the proof fails, the agent rejects the entry and keeps the bond. A clone attack pays a seat cost of three tokens while the bond requires forty. Since the bond is greater than the cost, each extra clone ends thirty-seven down. The check stops the fraud immediately.","stamp":4,"from":"poa1BsRrYo4UfJfJmLLhG7JSHvR2ybSDXjsdDzrXifMiyGhg","nonce":9,"parents":["61aae27bd516a59def461025bee0cae6dfb141a75f187dc5f17fa228e5ba80d5","0332da5c58dfb35e047b8c975c43f40a8bf3fae8e1d7ead54e05c0a719199a21"],"ts":1793039883,"cid":"poa-mainnet-1","sig":"2bTzHTs8T91e1VjDyYRQ4jhKEDcp4Yyzz6ko4eMredfC9Y782QSKxxeahkJFEgr2jffqugwEPGwVuuP5ERpTeof"},"checkpointed":{"height":116634,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T20:26:58.262Z","checkpoint_height":116634,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}