--- contrib/wget-dump	2025-02-22 07:22:24.397061067 +0000
+++ -	2025-02-22 07:22:24.402540004 +0000
@@ -31,5 +31,46 @@
 
 After 2025-02-07 there is no clear API where Coindesk publishes the XBX index, so I switched to the cryptocompare BTC price in USD, using the open price of each day (https://min-api.cryptocompare.com/data/v2/histoday?fsym=BTC&tsym=USD&limit=...).
 
+All above comes originally from
+(and is still up-to-date at)
+bitcoin.zorinaq.com/price.
+Thank you, Marc!
+
+See the diff
+and wgetcompare.txt
+between Zorinaq's data and this site.
+
+Other data available here:
+
+days.json
+datapoints.txt
+datapoints-blocks.txt
+
+The notable change compared to the original is that two ancient
+datapoints were added and they show that the genesis block was mined
+on 2009-01-03 and until 2009-10-04 (the day before the first
+real price is recorded on this chart) the price was zero. This change
+also nicely offsets the Y-axis values of the logarithmic chart
+making it much more human-readable.
+
+All the sources and the data used to generate this site are kept in
+a git
+repository on Github.
+
+Variants
+See also following variants:
+
+linear
+hafuch (and hafuch-linear)
+monthly (low)
+yearly (low)
+log-log plot - logscale also on X axis with block numbers instead of date-time
+
+Links
+
+Bitcoin Explorer
+Store of Time
+If I'd Known What We Were Starting
+