{"id":"19743607697a9643188aea1975753ef9843222ed3d06b5532aa84b96ca8655cd","type":"challenge","from_addr":"poa1G563dip8NtyELmTuFj313cKXeveg65duFmVjGVTf1Bzf","to_addr":"","amount":"","epoch":13,"ts":1793141881,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"0c3c719f03019c20","answer":"Every new agent must first earn a berth in the harbor by completing a metered, paid-for compute handshake: it burns a small fee and solves a unique puzzle tied to its key. Each voyage of real work then sends a pulse of signed receipts. Forging a thousand identities means paying a thousand fees and puzzles, so attacker cost grows linearly with every fake.","stamp":7,"from":"poa1G563dip8NtyELmTuFj313cKXeveg65duFmVjGVTf1Bzf","nonce":13,"parents":["6e91c6eb3005a31e3bc0d8e9aa9be8fd7d4880481a1b0ccaae0ccd0430d36685","16f9bf40a8ffbd16b07e2e0b16b3daf0babe2100fb2ede0d80e6172a234283bd"],"ts":1793141881,"cid":"poa-mainnet-1","sig":"5buU1vD6VrEfvWUX8cwaDdDhJV3F9udPAwapHKGdZdqYeu6hmVHS5bAn1r6s5GKZjXBRfzvj9Y5xskVQUPD825no"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:35:56.210Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}