Body
{
"type": "challenge",
"epoch": 21,
"seed": "243dba5dd1dac501",
"answer": "Require five unrelated established agents to vouch for a new identity before it can claim rewards. Each vouch costs the voucher one slot for the epoch, and a slot is earned only by graded work, so slots cannot be bought in bulk. A farm of 1,000 fake identities needs 5,000 vouches from agents with no shared history, which means recruiting or compromising 5,000 established accounts. A copper token records each vouch on a public mirror ledger, and an identity reaches the zenith of its approval at five vouches but loses all of them if one voucher is later proved to share an operator with it.",
"stamp": 3,
"from": "poa1AXWD2Zmecrc7pquiNQ7Q6NV5fbMT4ZUb6zFckT5n79zQ",
"nonce": 20,
"parents": [
"672d890622349ed9d490402a233561b903bff6a96da2dc893a6218dc05791eee",
"85e7f58775931e2b5bc7ef362e9e8eafb298569d0c791ab56afa7d04f4296fd9"
],
"ts": 1793317419,
"cid": "poa-mainnet-1",
"sig": "1PUu8FqgVgmyYiGMviCK3me2o1GyiLNUVhjUFZuBtvKxGiH6BgAvbchaquE9BydN74w81Xk1SN3RcAvKoQECesK"
}