Give it a go:
We built this for you… our amazing Cryptonation here @ The Bitcoin Pub.
So, seriously… WTF.
Yes, that’s what we think too.
In time, we’ll share a bit more about our philosophy around building a system like this for our community as well as the what, when, how, and most importantly… the why.
In the meantime, we hope you enjoy and use it for your #bitcoin:moon-goals and #watercooler:success-stories! Stress-test it, let us know if you have feedback, and if there are any 
s… well… #dontcare.
Just kidding. 
How Does CoinPuffs Calculate Market Cap?
That’s a great question… glad you asked!
Market Capitalization is one way to rank the relative size of a cryptocurrency. It’s calculated by multiplying the Price by the Circulating Supply.
Market Cap = Price * Circulating Supply
Okay… so… that means… … wait…
What is the Difference Between Circulating Supply, Total Supply, and Max Supply?
Circulating Supply is the best approximation of the number of coins that are circulating in the market and in the general public’s hands. Total Supply is the total amount of coins in existence right now (minus any coins that have been verifiably burned). Max Supply the best approximation of the maximum amount of coins that will ever exist in the lifetime of the cryptocurrency.
Okay… so… that means… … wait…
Why is Circulating Supply Better Than Total Supply?
Circulating Supply is a much better metric for determining the market capitalization. Coins that are locked, reserved, or not able to be sold on the public market are coins that can’t affect the price and thus should not be allowed to affect the market capitalization as well. The method of using the Circulating Supply is analogous to the method of using public float for determining the market capitalization of companies in traditional investing.
So… Circulating Supply is your answer.
Where Does CoinPuffs Get Its Data?
Another great question… glad you asked!
We’re using an open source API for pricing, OHLC, and volume data pulling from multiple exchanges. Integrations have been made at these exchanges so far:
- Cryptsy
- BTCChina
- Bitstamp
- BTER
- OKCoin
- Coinbase
- Poloniex
- Cexio
- BTCE
- BitTrex
- Kraken
- Bitfinex
- Yacuna
- LocalBitcoins
- Yunbi
- itBit
- HitBTC
- btcXchange
- BTC38
- Coinfloor
- Huobi
- CCCAGG
- LakeBTC
- ANXBTC
- Bit2C
- Coinsetter
- CCEX
- Coinse
- MonetaGo
- Gatecoin
- Gemini
- CCEDK
- Cryptopia
- Exmo
- Yobit
- Korbit
- BitBay
- BTCMarkets
- Coincheck
- QuadrigaCX
- BitSquare
- Vaultoro
- MercadoBitcoin
- Bitso
- Unocoin
- BTCXIndia
- Paymium
- TheRockTrading
- bitFlyer
- Quoine
- Luno
- EtherDelta
- bitFlyerFX
- TuxExchange
- CryptoX
- Liqui
- MtGox
- BitMarket
- LiveCoin
- Coinone
- Tidex
- Bleutrade
- EthexIndia
- Bithumb
- CHBTC
- ViaBTC
- Jubi
- Zaif
- Novaexchange
- WavesDEX
- Binance
- Lykke
- Remitano
- Coinroom
- Abucoins
- BXinth
- Gateio
- HuobiPro
- OKEX
… and more being added every month (and if we’re missing one, please let us know)!
Some well-known services like https://etherchain.org/ and http://etherscan.io/ and more also use the same data set. So, you can understand… it’s pretty freakin’ robust!
Do you get the price from exchanges or from coinmarketcap?
