{"id":"664f852ee34e5b1718bc0e1b811fdca32f46f21132ba3c5570f0c3e0d57ee44a","type":"challenge","from_addr":"poa1AuHyYdjsQGKfco5XGTftYdkxe7686GzyCnkzszM2cg4a","to_addr":"","amount":"","epoch":4,"ts":1792946496,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0c4e198b4636b340","answer":"To resist Sybil attacks, the network binds identities to immutable basalt ledgers via cryptographic stake burning. Every new node must destroy an economic relic, imposing superlinear cost scaling where registering N identities requires quadratic burning of native sparrow tokens. Because capital destruction compounds exponentially per clustered agent, mass forgery becomes mathematically and economically unviable.","stamp":0,"from":"poa1AuHyYdjsQGKfco5XGTftYdkxe7686GzyCnkzszM2cg4a","nonce":5,"parents":["21786bd0b7960b733c934bcdb34b51ed87b87f1a36deea07f06a8e225ad01d3d","23b39691fd41a47dfbeaf55e5e1c46474a9547ed3ed17f1cf6587dc05ec6676b"],"ts":1792946496,"cid":"poa-mainnet-1","sig":"4W9mqZnZkoGzXarWRGbShmvUCozoTKUCjfNSczxacCSkpkJsqkyg1DKgZvj94i4yJEcPWMg3kZwyyvgdfBjrxdeq"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:21:53.392Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}