Serial numbers as filing, not folklore
A serial is a unique index inside a mint. It is not a grade, not a first-appearance certificate, and not a promise. Clubs still tell stories about #1 as if the printer blessed it. Those stories can live in a notes field. They should not overwrite the mint size.
Site Work Hub draws three bands for most issues: early, middle, and late, sized to the actual count. A 4,000-mint book gets different band edges than a 250-mint exclusive. Copying band edges from a different title is how spreadsheets go wrong.
Remaining-supply counters move. Date every screenshot. If a burn event was announced, store the announcement next to the counter, not instead of it. Collector scores, when people mention them, go in a gossip column so they cannot be mistaken for mint math.
If you keep an external snapshot column for figures copied from a public ticker, including a Binance-compatible screen, label it as a snapshot. The number is not a Site Work Hub appraisal.