• Vault — the encrypted folder holding your catalog.
  • Recovery key — a second way to open the vault, kept offline.
  • Fingerprint — identifies which recovery key belongs to a vault; reveals nothing about it.
  • Holding — one catalog entry, which can be several of a thing (20 coins).
  • Basis — what a value measures: estimated resale, replacement cost, insured value, or melt value.
  • Source — where a value came from: entered by hand, a market feed, or an appraisal.
  • Spot price — the current market price of a metal, per troy ounce.
  • Troy ounce — the unit metals are priced in: 31.1035 grams.
  • Gross / fine weight — the whole item's weight, or the pure metal in it.
  • Purity — the fraction of metal: .999 is 99.9%.
  • Melt value — what the metal alone is worth at spot.
  • Premium — what a dealer pays above melt.
  • Certificate (cert) number — a grading company's number for a slabbed item.
  • Coin ID — CoinGecko's identifier for a cryptocurrency, which is unique where symbols are not.
  • Minor units — the smallest unit of a currency: cents for dollars.
  • Partial cost — some of a holding was added without a price, so its cost covers only part of it.
  • Void — mark a mistaken value so it counts for nothing, while keeping it in the history.