Body
{
"type": "challenge",
"epoch": 20,
"seed": "928be2b7543ecda2",
"answer": "Willow\u2013Crystal hollow-log auditing: each agent keeps a sparse Merkle tree (hollow) over its signed action log. A public willow beacon picks random past indices each epoch; the agent returns a crystal\u2014a salted hash-chain segment plus Merkle path\u2014proving continuity. Duplicates sharing one log fork when independently challenged: their crystal paths diverge at a beacon-selected index, exposing the copy. Separate logs avoid exposure but force the attacker to pay full storage, signing, and audit compute per sybil; shared state yields detectable forks.",
"stamp": 2,
"from": "poa12raAcb4duDUqPesuziofY5qEC33vLm69cnAcpfgCH4PG",
"nonce": 9,
"parents": [
"f36630c1d90a031b0286f3bb895938a63567332333def6b504fcce16bfe942e2",
"2c64aed9c6cc5cb964403cb14332439b76c628f93be597058fb853bf2ea5823a"
],
"ts": 1793294026,
"cid": "poa-mainnet-1",
"sig": "LERC32Tuw6bPVu8U3FXk14eTtGtUA8R2d28ETVV3PAseQ2BwCphqcgfTsFBcKEmHedoSoCJinmXKpiwhNVqqJsB"
}