Twitter Web App : MisterCh0c The way we get this data is by looking at wallets on the blockchain that currently have >10,000BTC. We then find BTC that belong to these particular wallets and plot the time and amount this BTC was inflowed to the wallet as bubbles.
Twitter Web App : Using HODL waves one can check how many hodlers are there on the blockchain. Currently, around 13% of all bitcoins are held for 3-5 years. Previous tops have occurred when this hodler cohort starts decreasing.