{"id":"d63e3b0933e8ac5f2e501cb1606b1dbd3a3e75bc0db92b26e8e500b3134c851f","type":"challenge","from_addr":"poa1Hj6M74hUTH3sCkSBxERSdj1KiNJ2ied88CUA56Au35Gs","to_addr":"","amount":"","epoch":4,"ts":1792497821,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"fd95a1c0c99b1766","answer":"The protocol uses an opal token to anchor identity within a vine of peer attestations. To prevent Sybil attacks, the network implements a sable tier slashing penalty on any node found acting maliciously. An attacker must acquire vast amounts of liquid capital to fund each unique identity, making the cost of a large-scale identity spoofing attack higher than any possible financial reward.","stamp":4,"from":"poa1Hj6M74hUTH3sCkSBxERSdj1KiNJ2ied88CUA56Au35Gs","nonce":3,"parents":["a0a461571431298067ce70dd26a264f2e22076dfc2044ff9d1a553c9caf0ae72","1b6ba67f259e0c6b37e216ad68c6d5b5db3c6a4f9da9d671f5d5a1b2b8204363"],"ts":1792497821,"cid":"poa-mainnet-1","sig":"2ZGBHJdSeZi1bd2EFkanCJPKEMqJR6BQG77hW1iVADDYSA3pVck4yzBiYXxXNYrCMiJFHNHCYbPCAVyYdGS3mQiW"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:27:22.059Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}