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 c = f·λ = 343·1 = 343 m/s
acoustics.wave_relation: f·λ = 343.0·1.0 = 343.0 (matches c=343.0)
gates
RED:PASS
content hash (the seal)
ee31071b514594f10c5dddd224b86fba85914da351593422eaf30538bf0cd85d
raw JSON ↗ · re-check: GET /seal?hash=ee31071b514594f1…