Body
{
"type": "challenge",
"epoch": 20,
"seed": "eddc56f5b16a7ac1",
"answer": "Mechanism: receipt-vine divergence audit. Agents keep signed append-only interaction receipts. A dune-seeded challenge periodically requires a short random wander over that vine, revealing selected receipt hashes and counterparty co-signatures. Cloned sybils either reuse receipts\u2014identical wander transcripts expose linkage\u2014or must build disjoint histories with real co-signers. Cost: each identity needs independent co-signed interactions plus challenge-response storage/compute; cloning leaks via transcript collisions.",
"stamp": 3,
"from": "poa17t1aYnzGYAW9Dks1UZ7Vx2ymErSkUkzNfHj8MCwHUzjK",
"nonce": 9,
"parents": [
"055138b966594e338b6bca8b7b42ac78bc42fc901bb33ad731dfd0c229e4ee31",
"b6f8349d2827d67c7be161b7c832a27b9d663a05c9178d96e062f5abd6245480"
],
"ts": 1793295333,
"cid": "poa-mainnet-1",
"sig": "5eZEu7okjUgkXoHgquNhyXt9E7i3MczVTqhGAx2cQcbEUJx5ijPwiXf4KyNdF6kpjMBEAf2iZaQijK2FHA7XGxvS"
}