Verified on insiderOne
Arko Sarkar proved Python.
Expert level, 95/100 in a live Skill Challenge on 7 November 2026. Not self-reported: the result is signed, and this page checked the signature when it loaded.
Can you match this?
Take the same Python challenge. It is free and takes ten minutes. Pass it and you get a receipt like this one, which employers can check, to put on your internship applications and your LinkedIn.
Genuine receipt
Python: Expert level
Arko Sarkar passed a live Skill Challenge, scoring 95/100, on 7 November 2026. The signature covers every character of the graded outcome; alter one and it breaks.
Scored on 4 answers, none flagged by the integrity checks.
91bf269308ebaef1f49800c67fc176df106eca4758ee4c77caf681ea7503bd9c
Have a real one? Check it here
Paste the receipt hash from any insiderOne pass. No account needed, and nothing about the person is shown that they did not publish.
Try it. A demo receipt, signed by the real key
- Skill
- Corporate communication
- Tier
- Expert
- Score
- 88/ 100
- Sealed
- 2026-09-01 09:14:07 UTC
- Receipt
- de009e0c46aa30f23fe637051244d70794f115f41debc985978e3ef40bc0f582
Verify it as sealed, then change one digit and verify again.