https://www.blocktrainer.de/en/blog/rich-in-bitcoin-how-much-btc-does-it-take-to-join-the-richest-1-club nostr:nprofile1qqs99qeszgcr0e5t7nw3ll63j8r9fz2x4xy4w69qk5wpdku76h07qucpremhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet59us7ynr6