fingerprints

Catch the Tamper

One of these charts is doctored. Can you tell which?

0 100 200 300 400 340 Eng 265 Sales 190 Ops 85 Legal Total: 880 Q3 spend by team ($K) slickfast.com
0 100 200 300 400 340 Eng 265 Sales 190 Ops 95 Legal Total: 890 Q3 spend by team ($K) slickfast.com

Legal moved from $85K to $95K in the right-hand chart — a $10K edit most eyes slide past in a deck. The fingerprints do not slide:

Original: sha256:29679a8fb8c80e305e4f6627f79242ee624aee61027e348a661d4eafd5c4890b

Doctored: sha256:343f993d44e180a3537d0402bb45bf5002925c5fe65e0da814a791e7b6633454

If the original fingerprint was published — in the email, the caption, the meeting notes — the edit is detectable by anyone, forever, with arithmetic. No audit team. No comparing pixels. One command.

This is what every SlickFast chart ships with, automatically. The fingerprint rides in the data twin and the response headers of every chart and page — nothing to enable, nothing extra to pay. Your eyes cannot audit. Arithmetic can.

fingerprint sha256:9c47edb3e00ea4663c46da9b646eaa7f7d0da7d9675bfd7400f54e597afa3800 · verify: add .json to this page's URL