Read original daily candles and base-asset volume
Open one Coinbase Exchange USD instrument, read its completed UTC daily prices and original BTC or ETH volume, and keep chart, table, source and download tied to the same result.
1. Choose one instrument and its original market
Open the market candle screen from Market prices. Choose Bitcoin or Ethereum on the explicitly named Coinbase Exchange USD market. Prepare thirty or ninety completed UTC days, or enter your own from and through dates for one to ninety days. The through date is included in the form; the query ends at the following UTC midnight, exclusively. Open the complete selection deliberately. Editing an instrument or date keeps the existing chart and result until you open a valid new selection. Read the applied source and instrument beside the displayed data before interpreting a chart. This first workflow covers original completed daily intervals in a bounded source window, rather than every exchange, asset or trading frequency.
USD is the source quote currency for these two products. A Binance USDT candle uses a different quote asset and venue; a CoinGecko reference point has a different method. Neither becomes the same Coinbase candle merely because the numbers look similar. The application keeps these identities separate. Selecting a display currency elsewhere does not convert an original price or this market's volume.
2. Read the whole completed UTC interval
Open is the first traded price within the source interval and close is its last traded price. High and low are the interval's reported price extremes. They describe historical activity on this particular market, not a current bid, ask or executable offer. A candle body connects open and close; its wick shows the low-to-high range. The chart is a visual presentation of these original values.
A daily interval starts at 00:00 UTC, including that boundary, and ends immediately before the next 00:00 UTC boundary. Its date labels the start, not the exact timestamp of the final trade. Only completed intervals are admitted. The current unfinished day stays out of completed history. Datisto capture, ingestion and any known publication are separate clocks; an unknown publication time or provider freshness remains explicitly unknown.
3. Keep price and volume units distinct
All four price fields use USD per unit of the selected asset. Volume measures the amount of the base asset traded during that same interval: BTC for BTC-USD and ETH for ETH-USD. It is not USD turnover, market capitalization, a rolling twenty-four-hour counter or total activity across all venues. A larger numeric ETH volume cannot be compared directly with BTC volume as though the units were identical.
Source decimal strings are retained, including meaningful precision in the original document. A chart or localized number may use a shorter display format; inspect the value or original export when exact digits matter. An actual numeric zero is a value. An absent interval, unavailable value and invalid source response are different states. The application does not replace any of them with an invented zero or estimated trade.
4. Switch presentation without changing the calculation
Candles, the closing-price line, base-volume bars and the exact observation table are presentations of one admitted result. Switching presentation should not fetch a separate quote or silently choose another source. Check the result identity and covered interval. The table preserves the original fields and interval boundaries; the Value Passport connects a selected observation to its original source, capture, method and current access verification.
The requested window is a limit, not a completeness guarantee. Invalid dates, reversed or oversized windows and the unfinished current or future day cannot be opened. A valid older window can contain no stored observations; the empty result states that absence and keeps its requested dates. Source days without data remain gaps; the previous close is not copied forward to create a candle. Thirty candle dates also do not establish a thirty-day return: that needs a separately defined starting price and calculation. A retracted or suspect latest observation cannot borrow an older candle to appear current. Weekly and monthly aggregation require a separate method and are not supplied by relabelling this original daily feed.
5. Export originals and interpret corrections carefully
An original JSON or CSV download refers to the same result and includes the OHLC fields, base volume, units and interval context. Download permission is checked when reading it; an expired review may need fresh verification. A cached or previously saved result is not permanent permission to reuse its source. Public redistribution and provider licensing are separate from this local development workflow.
A provider may correct a high or volume while leaving the close unchanged. That is still a revision of the whole candle, and an earlier accepted result keeps its original inputs rather than being silently rewritten. These candles describe prices and activity, not an investment recommendation, portfolio return, dividend-adjusted performance or proof of why a price moved. Use the stated source and interval before drawing a conclusion.
This is a guide to Datisto. Private features require sign-in and access to your own data. Personal models use your assumptions; availability and permitted use of source data are checked with the particular result. This is not investment advice.