The Most Useful Line on Your AI Cost Report Is the One You Can't Explain
Attribution, allocation, and why "unknown" belongs in the schema. This piece grew out of a comment thread on Sarvar Nadaf's Per-Agent Cost Tracking…
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Hash-chained revenue: why your agent payments need provenance
Every x402 settlement you have ever seen was, until recently, opaque. The merchant told you what they earned and you either trusted them or did not.…
Don't trust model quotes; use anchors instead
I asked models to extract facts with provenance two different ways. Naive: return {answer, quote} , insist the quote is verbatim, then string-match…
Provenance Belongs in the Image Table
A generated image looks finished until review starts. Someone approves the first version. Someone else crops it. A branded copy goes out. Another ed…
Row and Field-Level Data Provenance: Why It's Worth the Pain (and Where the Pain Is)
Most "data lineage" you've seen answers a schema question: table B comes from table A , or column B.total comes from columns A.price and A.qty . Tha…
The Execution Trace Is the Unit of Agent Trust
You cannot verify, price, or claim on an agent from its model card. You can do all three from a faithful record of what it did. What the 2026 resear…
The New Information Borders
Recently I came across a discussion about AI crawlers and robots.txt files. The conversation centered on a simple question: Should website owners al…
For Londoners, a Roman Bridge Still Determines Your Commute
Around 50 CE, give or take a few years, a group of Roman military engineers picked a spot on the River Thames and bridged it. They picked the place…