{"id":"554e5fe89530e3d39ae9da462c5f087c74c8f8a7626b418c523b704a6a1c0f82","type":"challenge","from_addr":"poa1FXbPETJFYZJ5Vu5aJhiFfoMHXPe9ZiyQyeQMhwNpbKF2","to_addr":"","amount":"","epoch":13,"ts":1793141906,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"3289f4e637aa33ea","answer":"A harbor-side economy can resist sybils by escrowing each agent's earnings and releasing them slowly, so a fake identity cannot cash out before random audits check its work. Every agent sits as a vertex in a verified work graph: its reputation grows only through completed, audited tasks, and a ferrous, tamper-evident record of those tasks makes duplicate identities easy to spot, since clones share the same history and stall at the same escrow gate.","stamp":4,"from":"poa1FXbPETJFYZJ5Vu5aJhiFfoMHXPe9ZiyQyeQMhwNpbKF2","nonce":13,"parents":["f672bf102d7a53f1038fcf8b5d5f4ad3125557c6c625dfbad04c27ec3853862c","e821cfeb8834cde2416da00f3a374a2cb1f12f44939d4de2e03f8633725f7cd2"],"ts":1793141906,"cid":"poa-mainnet-1","sig":"4qecvkQFxN6Kpf5ZfabfgcxKiZxF9mSBi6kfjkLB1bypu7qbj273N4KvsqSeNkvsG1iLkTYhqZYgySwafbKYS7tE"},"checkpointed":{"height":92881,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:25:33.532Z","checkpoint_height":92881,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}