Josua Schmid writes:
Interesting for the context is that blockchain ETFs just started in November 2017.
Notice: The tulip bubble was about future contracts (which specified cancellation fines) and never about the price of a tulip. Tulips are planted in autumn. They were underground while the mania happened. Often financial derivaties make bubbles and not the market per se.
- xx blocks / week, / month, / year
- a block every 20 minutes (a block every hour)
Add - why? why not?
- Bitcoin (started in ) - blocks/year - blocks in 1.1.2017, in 1.1.2018
- Bitcoin Forks
- Bitcoin Cash (Blockchain)
- Bitcoin XL (Blockchain)
- ...
Bitcoin Block Header - 80 bytes includes:
- timestamp (in unix epoch time - (mili?)seconds since 1970 - unsigned int for 2023 problem/overflow)
- merkle_tree_hash (transactions / txs ) - SHA512 ??
- Q: What's a Sidechain?
- Q: What's a Hyper Ledger Book?
Add AUSTRIA.md page?
- Blockchain Austria (Bundesministerium f. Wirtschaft)
- Bundesrechenzentrum
- Stadt Wien
How many (network) nodes?
Dumbcoin - An educational python implementation of a bitcoin-like blockchain
Tiniest Blockchain in Python Article (Alternatives):
- https://gist.github.com/aunyks/8f2c2fd51cc17f342737917e1c2582e2
- https://gist.github.com/thinkholic/35f3b4bdcd107d0bc088b6681e39e414
blockchain.rb Ruby Alternatives:
- https://github.com/MatiasFMolinari/blockchain-ruby/blob/master/blockchain.rb Less than 10 Lines!
NaiveChain github: lhartikk/naivechain -- A blockchain implementation in 200 lines of code (in JavaScript).
SharpChain github: ZenXChaos/SharpChain -- Lite version of the Blockchain. C# Data integrity.