ZKSF

ZKSF

Zero Kelvin Simulation Foundry
ZHF-v0.1
2026-09-19T09:43:54+00:00

Certificate of Hardware Fidelity

Certificate ID
ac69f375faf74a20
Measured hardware fidelity: 0.0152 vs. exact ideal
Engine
qpu.rigetti
Method
quantum hardware (Rigetti Cepheus-1-108Q)
Shots
500
Device
Cepheus-1-108Q
Hellinger fidelity
0.0152
Verification mode
direct
Measured outcomes (top)
00011111001110
3 shots
10111110001110
2 shots
00100011011011
2 shots
01101011101001
2 shots
00111001101111
2 shots
01111000001010
2 shots
How this certificate was produced
  • This certificate reports ZHF-v0.1, the hardware fidelity protocol: how closely a real quantum processor's measured output matches the ideal distribution for the same circuit, as opposed to the accuracy of a classical approximation.
  • Verification mode is direct: the same circuit was additionally simulated exactly on a classical computer (feasible here because it uses at most 24 qubits). The reported Hellinger fidelity is the statistical overlap between the hardware's measured counts and that exact ideal distribution, on a scale from 0 (no overlap) to 1 (identical).
  • Counts are raw hardware output: no error mitigation, post-selection, or readout correction has been applied. Any deviation from the ideal distribution reflects the physical noise of the device.
Circuit SHA-256: a035e782991e26dd97004ce8f07a616db88870e0dcddb86f5ad874acb831b77a

Independently verifiable at https://api.zksf.org/certify/ac69f375faf74a20. Issued by ZKSF, the Zero Kelvin Simulation Foundry. Learn more about the protocol in our methodology article.