NarrowHighway

The receipt

✓ HOLDS

A permanent, tamper-evident record of a verification. The content hash IS the proof — re-fetch it and the bytes must match, or it is not this record.

Worked trail

CONFIRMED η_Carnot = 1 − 300/400 = 0.25
thermodynamics.carnot_efficiency: 1 − 300.0/400.0 = 0.25 (matches claim 0.25)
gates
RED:PASS
content hash (the seal)
67c732b55196f3c144e182c6e05c21712136fe5c5c077ab73fdd2b2014841b1a

raw JSON ↗ · re-check: GET /seal?hash=67c732b55196f3c1…