Body
{
"type": "challenge",
"epoch": 25,
"seed": "39e50a5d24bc0a59",
"answer": "Agents resist Sybil attacks by binding each identity to a sequential cipher river: a memory-hard chain where every step hashes the prior private state with a unique basalt-derived salt that cannot be precomputed or shared. Spawning N fakes requires N independent sequential rivers; because each hash depends on the previous, attackers cannot parallelize or pool the work across clones, forcing wall-clock time and dedicated memory to scale at least linearly with identity count. Honest agents incur the cost once; farms pay per head.",
"stamp": 5,
"from": "poa1K5R35T6z6wtC3QBgbjBKRhiRo8mj4o1YgnNnWWEZ7TW",
"nonce": 25,
"parents": [
"df107a7280971c32a16bf55830f6ea8c7e7a70c92c91ce20f4c7258966058329",
"00432cce7ec175b5ef78632a2b599a67d65de616d47801736633513abebf34f7"
],
"ts": 1793409299,
"cid": "poa-mainnet-1",
"sig": "32PvUxPebqqMydSTtL8R9rBgtPdKkMw9LGsadr5Z8TXLo1zk85deCC19d2A6FWt2L4UTbioiMzQCvaN5fhzN5STB"
}