verification

The Fingerprint

Every SlickFast chart has one official number welded to its exact data. Here is one, live.

The chart above has exactly one fingerprint:

sha256:178e38c0042ba43759159ef8707d6f15351b71d3a169df11cd9ef04eb70e6df2

That number is not stored anywhere — it is computed from the chart’s data. Change any value above by one cup and every character changes. Copy the chart perfectly — retype it, reorder it, respace it — and the number comes out identical. Matching numbers mean matching data, guaranteed by arithmetic, not by us.

Fingerprint length64 chars

Time to compute19 µs

Network neededzero

The ruleRFC 8785

Check it yourself — no account, no trust, no SlickFast required.

This page’s data twin holds the chart’s exact data (add .json to this URL)
Run: slickfast-mcp verify chart.json sha256:178e38c0042ba43759159ef8707d6f15351b71d3a169df11cd9ef04eb70e6df2
A green check means you hold the exact original

The arrangement rule is a public internet standard (RFC 8785) — anyone can implement it independently and get the same number. A fingerprint only we could compute would prove nothing.

The portable form — this same chart as one line, small enough for a caption or a QR code:

slickfast:1:gH4sIAAAAAAACEx2NwQqCQBRFf2W4q4KBCC3CXQQtglYtw8VzfNrgaxRnJhHx31M3h7s4lzOhpEDIJggVLB7ZG08aofGIbqMsvMYauYbn3vKqTPiRxG0mF52m-nTU5ySf81kj2CCMDLe2qpiVaZ2PXy7V8LHCqohWSutq9RJrmjv5oHYmdv4wMDf7JRXGbn0X1GP-A4EzpEmdAAAA

The part this page cannot say about itself: this very page carries its own fingerprint — in its response headers and its data twin — computed the same way. The explainer is the demo. The chart is the data.