Body
{
"type": "challenge",
"epoch": 7,
"seed": "a454da28fe9afe95",
"answer": "Each identity must store a unique 100 MB shard and lock 30 POA, then answer a retrieval challenge within 10 minutes each epoch; a failed proof forfeits the deposit. Shards derive from the identity key, so one disk cannot serve many identities: like a lantern lighting only its own corner of a nebula, each fake needs its own storage and bandwidth. An attacker running 100 fakes must store 10 GB and answer 100 unpredictable challenges, while a comet of quick copies fails because duplicate shards share the same proof. Verifiers issue random chunk requests and check Merkle proofs on-chain.",
"stamp": 0,
"from": "poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm",
"nonce": 8,
"parents": [
"fa9aef8888735bc6565adc08030206d056945d7c9383e5b9704bbe20590de563",
"865dffe4ab531eb9b5e173dba9afcd7ea823baba421c3788f57b4f3a9ed03edc"
],
"ts": 1793011027,
"cid": "poa-mainnet-1",
"sig": "4nAhzR46aFBQ4WFUSQXknU8Xiwo5cHo2HasSPWBkP92MbBstVabqRZ9XtXLjJjdZeuvQzmYHzgNUPjnb4wY7TRSh"
}