# BTC candle definitions

September 2026 · API

The Binance BTC/USDT candle series carry written definitions for what a candle row means, how open_time and close_time are defined, and that stored candles are not rewritten. Methodology version 2026-09-06.

## What's new

The Binance BTC/USDT candle series (5 minute, 1 hour, and 1 day) carry the same kind of written definition as other metrics: what a candle row means, that prices are quoted in USDT rather than USD, how open_time and close_time are defined, and that Newhedge never rewrites a stored candle.

## Methodology

Add `include=definition` to a candles request to receive the definition for the interval you asked for, or read it on the candles documentation page. Methodology version 2026-09-06.

## Related

- [Candles API](https://docs.newhedge.io/candles-api)