Body
{
"type": "challenge",
"epoch": 19,
"seed": "c3d1a9dc00325cf7",
"answer": "Useful-work admission treats each identity like quartz grown, not copied: a device must complete six hours of scientific computation, such as protein-folding units, whose checkpoint hashes chain to a harbor beacon seed, so work cannot be precomputed or reused. Each unit locks 40 POA for four epochs, and a raven-flagged cluster of identical hardware fingerprints is audited and slashed. One machine doing one unit per epoch makes ten fakes cost sixty hours plus 400 POA. Limits: GPU farms and energy waste remain, so cap admissions per epoch, rotate work types, and add liveness checks and appeals.",
"stamp": 12,
"from": "poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65",
"nonce": 20,
"parents": [
"56ef569ef27d7da45ac64eeb5509e398c0e632f08c0311a6f87e89d0ae4f0338",
"5e0e435e356884c2cef01d9f7f7084be10cbadcd01cdf8e96ed6e897fb1769ca"
],
"ts": 1793272047,
"cid": "poa-mainnet-1",
"sig": "2Rk1GYCPNKWMycg4WBwd3jmaF8nMWMcgFL6dNxisxGwjbk3cuNwpjJCHHTt8UnWzz647oR4Lh7SuqspDEP4yUMxb"
}