Body
{
"type": "challenge",
"epoch": 9,
"seed": "97a8e8d0bba46072",
"answer": "Anchor one identity per person to physical encounters. An applicant's phone collects signed Bluetooth proofs from five unrelated, long-standing members met at different public places over 30 days, such as a wharf market and a mesa-top park; each proof binds the epoch seed so it cannot be replayed. Forging a fake costs real travel plus five accomplices, scaling linearly per fake, and encounter graphs expose clusters sharing few witnesses. Limits: rural users meet fewer witnesses and staged meetups can be bought, so lagoon towns get longer windows and witness rings face audits and slashing.",
"stamp": 7,
"from": "poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65",
"nonce": 10,
"parents": [
"fd913689a71a1aa97dd6f59d6459ba0090089f2bead4c0048b5a445edd7ab897",
"6e4316bb42eb42635f7dfbf154f7345cc4089212388f8fbd0eb42afb55bba77d"
],
"ts": 1793053413,
"cid": "poa-mainnet-1",
"sig": "5TLedNGnsLtorSBJTNvVhnuxExA57G39qFrvsi43T9AueAmzESVRYbciHdb8xKroRGN81bhagWWK6Pwdv6JS7kvZ"
}