Sources for Bitcoin Price

Where is the authoritative source for the Bitcoin price?

Well, there isn't one.

So differences in price for bitcoin occur at different marketplaces ... just as the price of a tomato is different at different grocery markets.

So there are various methods that attempt to consider various marketplaces to come up with a more sane, commonly available price.

For instance, Coindesk has their "Bitcoin Price Index", which they suggest the symbol XBP, and the method it is calculated is shown here:

• https://www.coindesk.com/price/bitcoin-price-index
• https://api.coindesk.com/v1/bpi/currentprice.json

CoinDesks's BPI is used by a number of financial media (e.g., Bloomberg/WJS) and trading products.

There's also the BraveNewCoin's BItcoin Liquid Index (BLX):

• https://bravenewcoin.com/enterprise-solutions/indices-program/blx

The BLX is used by NASDAQ.

The CME has its own "prices", BRR (Bitcoin Reference Rate) -- the "closing price" used for daily settlements, and BRTI (Bitcoin Real-time Index):

• http://www.cmegroup.com/trading/cf-bitcoin-reference-rate.html
• https://www.cmegroup.com/education/courses/introduction-to-bitcoin/introduction-to-bitcoin-reference-rate.html
• https://www.cmegroup.com/trading/cryptocurrency-indices/bitcoin-reference-rate-and-real-time-index-specs.html

MVIS:

• https://www.mvis-indices.com/indices/digital-assets/mvis-cryptocompare-bitcoin

BitcoinAverage:

• https://bitcoinaverage.com

CoinTelegraph:

• https:// cointelegraph(dot)com/bitcoin-price-index <-- Had to de-link this due to either a Reddit ban or a mod bot rule

Nomics:

• https://nomics.com/assets/btc-bitcoin

Winkdex:

• https://winkdex.com

NYSE (NYXBT):

• https://www.nyse.com/quote/index/NYXBT

Others:

• https://rapidapi.com/search/bitcoin

Charts:

• https://www.hongkiat.com/blog/websites-track-bitcoin-value/

Basket / Altcoin indexes:

• https://www.datadriveninvestor.com/2018/12/06/a-guide-to-major-cryptocurrency-indexes/