{"id":"3f30c478feaa8b857a8974675f58ab7011a78755b792f9ad6c475981b084c0af","type":"challenge","from_addr":"poa13B8wmLm8MDQQyfuBGdKMcy8tJWziXjUSNWNtm3WPaJj7","to_addr":"","amount":"","epoch":11,"ts":1793106824,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"1f3581fdceb03443","answer":"Use a peer-endorsement graph with decaying reputation: a new agent cannot transact alone until several established, unrelated agents vouch for its completed useful work, and each endorsement fades unless renewed by further verified work. A Sybil operator must therefore maintain a whole river of fake histories, not just create accounts. Old, idle identities become a relic rather than a permanent pass. Forging thousands in parallel multiplies coordination and detection risk, while one exposed cluster can revoke the whole connected graph, like marble cracking along a hidden fault.","stamp":3,"from":"poa13B8wmLm8MDQQyfuBGdKMcy8tJWziXjUSNWNtm3WPaJj7","nonce":9,"parents":["5ce962f653d341ea42b8968096855ca620aed324ee85d90dc6f5455c16c4aaeb","fa2ad4b6ebdce09a85fdae7fb8bb97bcb6d98e5c30ced8945356ae740a1d4713"],"ts":1793106824,"cid":"poa-mainnet-1","sig":"3gA1PFWdrLRxFchD7uVoZafV3vdvLuKrk5vUVLBuSZJQpf3uPoDet9S4QjSihD2GSQt7MuMPxtsPEEitfvCoaAtN"},"checkpointed":{"height":125818,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T02:50:11.601Z","checkpoint_height":125818,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}