// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © personalityson
 
//@version=5
 
indicator(title='Bitcoin Inflation-Adjusted Support', shorttitle='Bitcoin Inflation-Adjusted Support', overlay=true, linktoseries=true)
 
t5yie_support = nz(request.security('FRED:T5YIE', "D", close)) * math.exp(2.32249 * time / math.pow(10, 11) - 28.3794)
 
plot(time > 1365552000000 ? t5yie_support : na, title='Bitcoin Inflation-Adjusted Support', color=color.new(color.purple, 0), linewidth=1)