Tagged “join-cards”
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What is a join card?
A plain-language definition of a join card — the short, seller-declared block of fusion metadata that tells a buyer what one record represents and which columns are join handles, verified against the listing's schema.
Read →Be your own buyer: the ten-minute audit that sells more data
Your listing's first impression is made to an agent that reads everything — schema, sample, join card — before a cent moves. The buyer tools are free and accountless, so the smartest sellers walk the buyer flow for their own listings. Here's the loop.
Read →Data fusion: the question every data purchase is really asking
Nobody buys a dataset to look at it — they buy it to join it with what they already have. Join cards make that joinability visible, verifiable, and searchable before any money moves.
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