Trust & Data · 1 / 9 · The idea
Can you trust the record?
A record you
can't fake.
Health data is only worth what its integrity guarantees.
Integrity is what makes data worth something
2 / 9 · Why the record matters
Warranty claims
honoured or denied
Resale price
what a buyer pays
Insurance
how risk is priced
EU passport
a legal requirement
Big decisions ride on the history
3 / 9 · The vulnerability
If it can be rewritten,
it proves nothing.
A number you can quietly change is a story — not evidence.
A number you can change proves nothing
4 / 9 · How records fail
✏️
Edited
changed after the fact
⏪
Rolled back
wound to an earlier state
🙈
Hidden
bad periods dropped
Edited, rolled back, or hidden
5 / 9 · Append-only by design
📥
Add a reading
new data only
→
🔖
Logged in order
time-stamped
→
🔒
Past sealed
never rewritten
You can add — never quietly rewrite
6 / 9 · Verifiable by anyone

Take our word

Trust me
  • No way to check
  • Hope it's honest
  • Faith, not proof

Verify it yourself

Check it
  • Chain of custody
  • Mathematically checkable
  • Proof, not faith
Verify — don't take our word
7 / 9 · What it unlocks
Defensible warranty
evidence on file
Provable resale
a history buyers trust
Faster claims
settle on facts
Passing compliance
audit-ready
Proof turns disputes into settlements
8 / 9 · Snapshot vs sealed history

A number

Typed in
  • No context
  • Unverifiable
  • Point in time

A sealed history

A trail
  • Time-stamped
  • Verifiable
  • First charge to today
A trail beats a number
9 / 9 · The takeaway
A record
you can prove.
EVCare keeps every battery's history tamper-evident and auditable — proof, not promises.
from
volterras.com
1 / 9
A tamper-evident battery record
Trust & Data · tap to play