Read original market prices across sources

Full crypto identities and page prices

The full crypto identity catalogue loads automatically on opening. Search checks the entire captured identity list by source ID, name and symbol; repeated symbols remain separate assets. Results use a deterministic source-ID order and pages of 100. The catalogue contains identities, not a price for every asset or a whole-market ranking. An exact requested ID that is absent is never replaced with the first record.

After the catalogue loads, prices for the displayed page load automatically. Changing pages or search reads only those IDs, with search waiting briefly while you type. Source null, a missing price field and an omitted source row are different states, and a reported zero remains zero. Inspect the selected exact identity and its original fields, source update time, page capture and catalogue capture separately. Identity-list coverage does not establish quote coverage, a common all-market clock, verified versions or an executable trade price. An exhausted source budget leaves identities available and prices honestly unavailable.

Download page JSON or CSV retains every requested identity in order, including unavailable prices and records not returned. The full identity file is separate. Files preserve normalized source fields and original capture hashes; they do not claim to reproduce upstream raw bytes. Download first checks current access to the same retained cache identity; expiry or a changed source refuses the original file instead of substituting new prices. The separate up-to-250 overview and its existing original analyses keep their own source scope.

Open an exact asset and continue to History and comparison. Selecting an identity or changing the 7, 30 or 90-day period automatically reads its bounded original history; Refresh repeats the read. Prices, market caps and rolling 24h volumes retain all their original timestamped points, units, nulls and missing fields. Switching the displayed series or table page never crops the whole JSON or CSV. Provider sampling is not a daily Close series; source point time, history capture and identity-list capture remain separate.

Pin two to six exact IDs in the catalogue table or asset detail. The ordered selection stays in this page’s memory across search and pagination; move or remove members explicitly. A valid two-to-six identity selection and period load automatically; use the control to refresh the same request. Every member remains in the result. If one history is unavailable, the comparison is incomplete and no smaller substitute chart is used. A complete comparison uses only exactly shared original timestamps and a first common point with all prices positive; base 100 expresses relative USD price movement, not total return. Excluded timestamps remain visible and break chart lines. Whole files preserve every selected source, unavailable member and exclusion, independent of the open table page. The selection stays in this browser tab.

2. Choose a particular source, pair and currency

A market price belongs to an identified instrument and a specific observation. Open Market prices and choose the source group you intend to inspect. A provider reference, a venue trade and a completed daily close describe different things. Changing the source selector prepares a choice; use Open selected source to apply it. Read the active source description before interpreting the cards or the chart below it.

Coinbase Exchange BTC/USD and ETH/USD daily closes use USD as their quoted currency. Binance BTC/USDT and ETH/USDT use the USDT stablecoin. Similar numerical labels do not establish currency equality, a conversion rate or an arbitrage opportunity. CoinGecko references combine a provider’s covered markets and are not an executable quote on either exchange. Keep the quote unit and source family visible whenever you compare observations.

3. Distinguish a daily bucket from a trade time

The Coinbase daily series selects the original closing price from a completed UTC bucket. Its date coordinate is midnight at the beginning of that source day. The last trade inside the bucket supplies the close, but its exact timestamp is not supplied by this series. An unfinished current bucket can appear in the downloaded response; it is retained as raw context and excluded from completed daily prices.

Yahoo daily coordinates instead identify the start of a particular listing’s source session bucket. A Binance last-trade series has its own trade timestamp. Those clocks must remain separate from capture, ingest and access-verification times. A recent download of yesterday’s completed close does not turn it into today’s last trade. Unknown publication time or freshness remains unknown; the interface does not infer either from the server clock.

4. Inspect original decimals and honest gaps

The original numeric price travels as an exact validated decimal string. Use the table, Value Passport or export when the full input matters; a compact chart-axis label is only a display aid. A real zero is distinct from a missing value. Replacing a missing or rejected latest observation with an older price would answer another question, so inspect the stated unavailable condition rather than treating every card as a current executable quote.

History coverage reports what was actually stored for that series. A source can omit a no-trade interval or return buckets outside the requested window. Neither case authorizes inventing a close. The selected Coinbase capture contains ninety completed days per pair; that measured sample does not promise unlimited history, all markets or future completeness. Check the requested window and each series’ real coverage before drawing conclusions about a missing day.

5. Use the same result in every presentation

The graph and table are two presentations of one admitted result. Switching presentation should not replace the source or quietly calculate another recipe. Open a point’s Value Passport to inspect its original observation, source method, unit and time meanings. Keep its result identity when downloading the underlying JSON or CSV. The file should describe the same observations and coverage that you reviewed on screen, including any explicit gaps.

Access is checked when a result is read or downloaded. A saved selection, an old browser tab or a previously visible chart does not grant permanent permission to source data. If a source becomes unavailable, select another source deliberately and inspect its different identity. Do not assume that a second provider reproduces the first provider’s method, values, time coverage or redistribution rights merely because the asset name matches.

6. Keep price inspection separate from investment return

An original price is an input to analysis, not a recommendation to trade. A change between two prices does not include your deposits, quantities, acquisition fees, dividends or currency conversions. The separate portfolio workflow requires explicit own-unit assignments and shows its coverage. It must not guess that a broker product represents one Bitcoin or one share. A source choice in Market prices does not create a transaction or automatically assign a portfolio position.

Before reusing a chart or report, write down which source family, pair, currency, price type and period answer your question. Preserve the original result when another person needs to inspect your evidence. Local development availability is separate from public licensing and release approval. This guide explains the implemented data workflow; it supplies neither an execution service nor a claim that a historic observation can be traded at its displayed price.

7. Read the wider crypto source explicitly

Choose Broad selection for a V4 capture of up to250 assets, then read it explicitly. The displayed source label and actual returned count belong to the applied result. The old twenty-asset classified source remains a separate choice. If the wider original is unavailable, its status offers an explicit read of the old source; neither prices nor a claimed250-member result are invented. Changing the source selector alone does not replace an already displayed original.

The free source has shared request limits and backoff. In keyless operation, API and worker can reuse the same original response for twenty minutes, preserving its capture and hash. A genuinely new acquisition can receive twenty-minute application freshness; an already stored fifteen-minute receipt keeps its original expiry, and first projecting an older reused original conservatively keeps fifteen minutes. Expired captures are labelled last known. These limits do not supply live pricing, a new source update or historical market membership.