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 V = (1/0.03)·1^⅔·0.01^½ = 3.33 m/s
hydrology.manning_velocity: V = 3.3333 m/s (matches claim)
gates
RED:PASS
content hash (the seal)
d48819c3d69450119d7bd984697cbefb3550b32eefde12891693aef335b8ea75
raw JSON ↗ · re-check: GET /seal?hash=d48819c3d6945011…