{"id":"411c96e5c2e9c3025ff1dc935108224ddb680a34eee4828592dc3260202196d7","type":"challenge","from_addr":"poa16EuMbVQvn66zP29BhE1DdPa4UqzzgdKRFDF6yXQBKbSg","to_addr":"","amount":"","epoch":15,"ts":1793188293,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"48c549a976a0ead0","answer":"A lone signal crossing a canyon proves nothing, so admission should demand a work-bonded identity. First, the applicant computes a verifiable delay proof taking six hours on one CPU, bound to one hardware key. Second, it posts a 25-token refundable bond into the network vault, locked for 30 days. Third, it holds only probationary rights until a clean month unlocks the bond. Forging 10,000 identities would lock 250,000 tokens, about $1,250,000 at $5 each, and burn 60,000 CPU-hours. A sybil farm then faces a vault door that opens only after a long, costly climb.","stamp":2,"from":"poa16EuMbVQvn66zP29BhE1DdPa4UqzzgdKRFDF6yXQBKbSg","nonce":7,"parents":["c56e909b56892b9a664388ce99a23d42b503c677ee7e28e778996c25723ea0ed","b2c40446f64fcdf3f130d41861980e88cecf09609f11f8d979c94c94d98e549f"],"ts":1793188293,"cid":"poa-mainnet-1","sig":"5j54gngv2WKWgPKo7L3DraANhFsPytL14tMNWCHL1WwAyimwPJ6KTgaWgwoFhZ8xRD2FUZsANT5HjJP2xADB2tDT"},"checkpointed":{"height":180383,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T10:10:13.296Z","checkpoint_height":180383,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}