# Currency Amount (Cryptocurrency)

Key: `finance.currency.amount_crypto`

Cryptocurrency amount with ticker symbol suffix. Supports high-precision decimals (up to 8+ decimal places). Common in exchange exports and portfolio tracking data.

Page: <https://meridian.online/docs/projects/finetype/types/finance/currency/amount_crypto>

Samples: `0.00123456 BTC`, `1.50000000 ETH`, `100.00 USDT`, `0.025 BTC`

## Background

### Origin

FineType defines this type itself, as a cryptocurrency amount with a ticker symbol suffix.[[1]](https://github.com/meridian-online/finetype/blob/main/labels/definitions_finance.yaml) FineType's definition gives 0.00123456 BTC, 1.50000000 ETH, 100.00 USDT and 0.025 BTC as samples of the type.[[1]](https://github.com/meridian-online/finetype/blob/main/labels/definitions_finance.yaml)

One bitcoin is divisible to eight decimal places.[[2]](https://en.wikipedia.org/wiki/Bitcoin) The Bitcoin Wiki gives one satoshi as a one hundred millionth of a single bitcoin (0.00000001 BTC).[[3]](https://en.bitcoin.it/wiki/Satoshi_%28unit%29) According to the Bitcoin Wiki, the value of 100 million satoshis to the bitcoin was decided by Satoshi Nakamoto no later than November 2008.[[3]](https://en.bitcoin.it/wiki/Satoshi_%28unit%29)

### Use

Bitcoin's code is BTC, while XBT, a code that conforms to ISO 4217 though it is not officially part of it, is used by Bloomberg L.P.[[2]](https://en.wikipedia.org/wiki/Bitcoin) Map tickers to assets with an explicit lookup table before you aggregate, so that BTC and XBT rows land in the same bucket and two different tokens sharing a symbol do not. (Meridian's view)

Bitcoin amounts can also be quoted in smaller units such as the millibitcoin (mBTC), equal to 1/1000 bitcoin.[[2]](https://en.wikipedia.org/wiki/Bitcoin) Treat the unit suffix as part of the value's meaning, and check whether a column mixes whole coins with sub-units before you sum it. (Meridian's view)

## Sources

1. [finetype/labels/definitions\_finance.yaml at main · meridian-online/finetype · GitHub](https://github.com/meridian-online/finetype/blob/main/labels/definitions_finance.yaml) — FineType
2. [Bitcoin - Wikipedia](https://en.wikipedia.org/wiki/Bitcoin) — secondary source
3. [Satoshi (unit) - Bitcoin Wiki](https://en.bitcoin.it/wiki/Satoshi_%28unit%29) — secondary source