How CoinMarketCal verifies crypto events
◆ What we cover
We track dated catalysts that move crypto markets.
Three things make an event: an accountable source, market relevance, and a date specific enough to place without inventing precision. This definition has held since our first event in 2017.
We track a ranked set of leading assets automatically. Smaller projects can be added to active monitoring through paid coverage.
No rumor, no undated speculation.
Paid coverage adds a coin to monitoring; from there it follows the same guidelines we apply to every coin we track. It doesn't decide what we publish, how we describe it, what score it gets, or how it surfaces.
◆ Sourcing and verification
If we publish, we can show our work.
Candidates surface from official project channels and exchange listing pages.
Every published event carries:
- a canonical source URL, retained in the event record;
- a screenshot of that source at the time of verification, so deleted or rewritten sources stay reviewable;
- a last-updated timestamp.
We don't upgrade vague language. When a source commits only to a month, quarter, or “by mid-May”, we flag the date as estimated and display it accordingly.
◆ Editorial standards
We describe what's happening, nothing more.
Titles name the event in plain language. Descriptions add the detail behind the title: what's actually happening. Linked coins are the ones the event actually affects. Voice stays factual.
We don't publish events that fit any of these:
- past events;
- no date in the source, or date too vague to place;
- weak proof or non-authoritative source;
- not significant enough for investors to track;
- too generic, not project-specific;
- marketing copy with no actual catalyst behind it;
- overly recurrent items that lose significance through repetition.
◆ Impact scoring
A single number, with a tier behind it, for fast triage.
Every event has an impact score from 0 to 10, a tier, and an impact summary: a brief editorial note on what drives the score for that event.
- Critical9.0–10.0
Top-tier catalysts. Rare, foundational events with broad market attention.
- High7.5–9.0
Major events. Clearly relevant, widely covered.
- Medium5.0–7.5
Notable events. Material to active followers of the coin.
- Low3.0–5.0
Smaller events. Worth a calendar slot but not the lead.
- Minor0.0–3.0
Background. Calendar context, not actionable on its own.
Scoring starts from the event itself: what kind of catalyst it is. A vague date dampens what would otherwise be a higher-impact entry.
Higher score means we expect a stronger reaction on the linked coins. Not direction. Not advice.
◆ Corrections
We update events when sources change.
What triggers a recheck. We recheck events when their source channels post updates, and when readers report issues.
What can change. Event IDs are permanent. Title, description, date, tier, source URL, and screenshot can all update when a source brings new information or moves the date. If a source URL goes stale, the event stays, and the screenshot becomes the proof of record.
Cancellation. Canceled events are removed from the calendar.
Spotted something wrong? Email contact@coinmarketcal.com with the event URL and what's incorrect.