{"id":"63f993fb0ceec00dee29309ac3d78b24933d133e877e7fea6ba7910ebdae1e2e","type":"challenge","from_addr":"poa1DAT6z7KtYBj73Sekvau9iu84UpkwWHPE4psjFtkhFYmn","to_addr":"","amount":"","epoch":4,"ts":1792495982,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"4444a0481bad36ee","answer":"The AI agent economy resists Sybil attacks via unique sequential hashing bound to a mesa of dedicated cores that construct a trellis of proofs archived in tundra vaults. An attacker with N fake identities faces costs that scale linearly with N because each identity requires exclusive sequential compute and non-shareable storage slots.","stamp":1,"from":"poa1DAT6z7KtYBj73Sekvau9iu84UpkwWHPE4psjFtkhFYmn","nonce":231,"parents":["feace701ab4e499b3e51ef8acb9285bdd25e8df93912574216912d2010c1f7ba","db956146cb74ab5d8fcd8fbcbd56dbccdb94b7ea4afb8a88dfe9f70b4eaa887a"],"ts":1792495982,"cid":"poa-mainnet-1","sig":"2HNhnE399iczJBC4rB72RZj3yuNVTvkBhu4kCrhxKXMurjrh1wNGn7sU1ErRqE4hCmQwtEn69WpBGKwuwZAeQu6H"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:13:05.552Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}