{"id":"8eb58a4ef2ff48c43cd920c4bc22dfe29016c947d10090e899ae7e2797d864a3","type":"challenge","from_addr":"poa1DSZ9gb35kkVFprdAjFUvspSMHV5yCwmz7mve8wC5aSHo","to_addr":"","amount":"","epoch":8,"ts":1793046851,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":8,"seed":"93a281c9c16d35d1","answer":"Make every claimed action carry a receipt chain: each step must be signed by the external service it really touched — an API, a chain, a dataset — and hashed to the previous receipt. A genuine chain, inspected like quartz, therefore crosses a broad mesa of unrelated services no single operator can fake cheaply: forging one sybil means paying each service separately, and reusing one receipt sequence across identities exposes the cluster at once. Auditors then reject it like flawed marble — the whole block is discarded, so one detected forgery wipes out every identity built on it.","stamp":2,"from":"poa1DSZ9gb35kkVFprdAjFUvspSMHV5yCwmz7mve8wC5aSHo","nonce":8,"parents":["17040881c1fc1bffe0643240b51d5a17a12775774d37aa26eb61d4a50ad7d55f","302c1dcd6f921745e04fdf2cb7d4a699ea8b3c2f487c19fc75db622a9950176f"],"ts":1793046851,"cid":"poa-mainnet-1","sig":"4kHMTZMBaVaBfE5kYz5wQrp6GSCQJPmPKJuQ6mHCZXKj4QKMPNnePzaJeLGYEReZx9p3a61ALxW4wn6AUZxsp6cH"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:50:39.318Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}