When a robot causes an incident, the question is always the same: where was it, exactly, and can you prove it? GridStamp is the evidence layer. SHA-256 proof chains, HMAC-signed frames, 100% replay detection. Tested at 200 concurrent robots with zero false negatives.
GridStamp is sold to the person who writes the check when something goes wrong — not to the roboticist who wrote the code.
Reduce loss ratio by resolving location-of-incident disputes with cryptographic evidence instead of he-said / she-said. Lower your uncertainty tax.
Give your shippers cryptographic proof-of-delivery they can verify offline. Upgrade ETAs from claims to receipts. Resell as a "Verified Visibility" tier.
Catch the ~9% of top players who GPS-spoof. 91% spoof detection at <0.5% false-positive rate. Stop tournament prize leakage and whale churn.
Two independent test suites. A 92-day fleet simulation with public Waymo/Tesla/Starship data. And a 100K production stress test with 200 concurrent robots.
| 100K stress test — concurrent robots | 200 |
| 100K stress test — operations | 99,911 |
| 100K stress test — throughput | 2,323 ops/sec |
| Replay detection | 4,000/4,000 (100%) |
| HMAC tamper detection | 2,000/2,000 (100%) |
| Proof chain verification | 200/200 robots (100%) |
| Proof chain links verified | 80,000 |
| p99 proof generation latency | 0.86 ms |
| Fleet simulation — operations | 14,554,382 |
| Fleet simulation — agents | 5,500 across 20 fleets, 8 cities |
| Unit + integration tests passing | 221+ |
| License | Apache 2.0 |
Three layers, cryptographically isolated. Every operation produces a receipt your counterparty can verify offline — no dependency on GridStamp's servers.
Every camera frame is HMAC-SHA256 signed at capture time. Monotonic sequence numbers prevent replay. Any post-hoc edit invalidates the signature.
The full operation history is committed into a Merkle tree. Tamper with any point in the history and the root changes — detection is instant.
SSIM + LPIPS + depth comparison against trusted landmarks. The camera has to actually see the place, not just claim a GPS coordinate.
Every spatial proof links to the previous via hash chain. A robot's complete operational history becomes a tamper-evident linked list an underwriter can verify end-to-end.
30-minute call, no pitch deck. I show you a spoofed incident being caught live and a receipt verifying offline. If the math works for your book, we talk about a pilot.