Continuous proof

Cold chain proof.
Measured continuously.
Proven.

Proof of no cold-chain break in pharma and food: continuous measurement, eIDAS timestamping, Hedera anchoring.

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The engine

Continuous

Measurement at a 15-minute cadence. Never a stale snapshot.

Anti-gaming

Verdict = minimum over a rolling 24 hours. No one can game the signal.

Integrity proof

SHA-256 hash-chain + anchoring + RFC 3161 timestamping via a qualified eIDAS TSA. Verifiable by a third party.

Neutral

Paid by the buyer, never by the measured party. No conflict of interest.

A verdict, not a declaration

Illustrative example — timestamped verdict
Pharma pallet "P-882" · 2–8°C held continuously · 0 break · verification link handed to the client.

Offer

Price
600 € excl. VAT/month
no commitment · €0.20 per seal · eIDAS timestamping · Hedera anchoring · first seal free

FAQ

How do I prove to my client that temperature stayed compliant during transport?
Through continuous temperature measurement (sensor), sealed at a 15-minute cadence, eIDAS-timestamped and anchored on Hedera. Your client gets a verification link of the range (e.g. 2–8°C) held end to end.
Is my temperature recorder recognized in a dispute with the carrier?
A standard recorder stores data in a proprietary ecosystem the carrier controls. A sealed, anchored measurement is verifiable by an independent third party, which changes the strength of the file in a dispute.
What solution for a pharma cold chain compliant with Good Distribution Practice?
Continuous sealed measurement documents compliance with the temperature range required by Good Distribution Practice (GDP), from warehouse to pharmacy, with a history verifiable by a third party.
Can I detect a cold-chain break in real time rather than at delivery?
Yes. Continuous measurement at a 15-minute cadence detects an out-of-range event as it happens, not at parcel delivery. The alert is sealed and dated, ready to serve as evidence.
What is the cost per parcel for verifiable temperature proof?
€0.20 per seal, eIDAS timestamping included. The ColdChain Proof offer is €600/month for a continuous tracking flow.
Is your temperature data accessible to an independent third party?
Yes. The hash of each measurement is anchored on Hedera and verifiable by recomputing it, with no account. The data content stays under your control; only its integrity is publicly proven.
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