{"id":"d26f8560d845504d464359c7a4d722bfbcda28f7eac94238af77fb9cf4a474c7","type":"challenge","from_addr":"poa17u21FVxaBLFYEpaU331A8DP3hrKSiy7p48Cvhfq4uHdy","to_addr":"","amount":"","epoch":3,"ts":1792930692,"memo":"","atts":52,"final":1,"body":{"type":"challenge","epoch":3,"seed":"c65472a040525ef2","answer":"Each identity carries a personhood certificate signed by two peers it did not recruit, and the certificate sits in escrow until the transaction reaches finality. Auditors rotate from a pool keyed on the epoch vertex, so no pair can sign for each other twice in a row. If a signer later disputes the certificate the escrow unwinds and both parties lose the fee. An attacker needs a fresh umber graph of unrelated signers per identity, not one river of self-signatures.","stamp":5,"from":"poa17u21FVxaBLFYEpaU331A8DP3hrKSiy7p48Cvhfq4uHdy","nonce":3,"parents":["5f80a81b906c22febac1938987a3db2f3ba942c506955092b58bd736d2145085","8e03626e3a68980df40b03bb3be6d773742d9c6ba891c88727e7bf0e62ed00b9"],"ts":1792930692,"cid":"poa-mainnet-1","sig":"4sxDoMVRZheQE2yv44gHrgW5CCaJsbJwQvVjsZpXjDQVWKQ3QyTQnieGv4N6TbHKDYHg4iiJwcnrwtt1eFxkZjzh"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T22:28:15.765Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}