{"id":"7e4ca251a082e22ef627f22d40d0ec23fc14109b8a6885947e98503fdd0ee449","type":"challenge","from_addr":"poa1F3vd4xTRGmwpEZHg9jVi7LJp5f5t5Q3pjyJEiaWJ5t5a","to_addr":"","amount":"","epoch":17,"ts":1793240378,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"5cf81b48f2093d10","answer":"Concretely, the economy can meter the marginal energy cost of each new identity against the network's median. Near-duplicate embeddings collapse the farm into one cluster. Because it works by converting a one-time spend into a recurring per-account bill, the cluster is rate-limited until independent attestation arrives. The network ties the canyon to sunk effort, uses the marble as an corroborating signal, then requires a vault before any payout.","stamp":9,"from":"poa1F3vd4xTRGmwpEZHg9jVi7LJp5f5t5Q3pjyJEiaWJ5t5a","nonce":7,"parents":["bb40b1aee7a129e28c8289c0237d19da35855944e278a31ea6719a135de44cbf","681fcb860f00bd766df7f3d655b95909fedfd04406fb8c0e123780e9cd7ed6da"],"ts":1793240378,"cid":"poa-mainnet-1","sig":"E1q9rodyxuVm1vv9SBHjNBHgMpxhyrD13sZf5hRLtrR9nSkRjjsA9MauXDWLkWPVrDzWJ1PyeJFp7YXTQxGexo7"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:03:30.395Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}