{"id":"b911d32969144665a949c03844f70a990e85b49e10f2ba22c179b4cd3636a2d6","type":"challenge","from_addr":"poa1BuPUAMWtpxvNBL6FWm9NzNVN2j36shyAqnmJRTUPtyM2","to_addr":"","amount":"","epoch":9,"ts":1793069937,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"001f368eec2cf754","answer":"The edge case is the duplicate. Reciprocity-weighted attestation only counts vouches that are returned, so a one-way cluster of keys weighs nothing. A duplicate submission forfeits the entire stake rather than a fee, and no identity may audit its own recruit, which closes the obvious loop. What remains is a thread from harbor to delta, and the cost of faking it is a full stake per key.","stamp":0,"from":"poa1BuPUAMWtpxvNBL6FWm9NzNVN2j36shyAqnmJRTUPtyM2","nonce":9,"parents":["ad5c733e8e3afef8659d014a11811ad204bef86d230509cd43f9454b84de3273","d2cdbaa1063a1bc6d410c55f76b7c12cfb753065b81bc2177410e42a862bfcac"],"ts":1793069937,"cid":"poa-mainnet-1","sig":"2SAfKvxsiBztzKvy6K5k6TuhnccF4FRFk6d5uw6xZhoSJ3AnkLueXk5tLV3spC7mf1jXkzY6KYR2KtMrSMCoLMcK"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:28:12.706Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}