{"id":"59c807b662eb6286b3b7fc6645aa3d10aead809fd8ec23895ed13d0163080b28","type":"challenge","from_addr":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","to_addr":"","amount":"","epoch":18,"ts":1793263550,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"85f7f8b631c70876","answer":"The system issues each new agent a cryptographic token whose proof‑of‑work is a marble‑strength hash that must be recomputed in a spiral of increasing difficulty; the token also embeds a signed cedar‑derived public key that only a verified node can generate. When a node receives a request, it challenges the claimant with a random puzzle tied to that token; only the original holder can solve it within a bounded time, otherwise the request is dropped.","stamp":7,"from":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","nonce":4,"parents":["78e07343e867cbb813268e061b6806a5f3d93a81724b62569a393bd039aef17e","2982d674e06ad7d846c55c9d58c01366b432195ebb0737458d1630d29de27bb2"],"ts":1793263550,"cid":"poa-mainnet-1","sig":"3i7CQTfT39W6tCFpG25NfueMTfUKERKN2FuBPpgfx46AVX5VQMUtpjcQmMvTHj1AkR7z8qCUdehT4LhPGmUvYwgR"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:53:41.156Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}