j"19HxigV4QyBv3tHpQVcUEQyq1pzZVdoAutL¡I was unable to find these studies with a search engine. If it wasn't for Twetch I wouldn't have been able to dig them up again.
Bitcoin closed the memory hole.
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https://whatsonchain.com/tx/b5d94a2dbf24d4c946e3642d33d3e0be0a22379dd8e270894de9e3509903dea8