Who is Hal Finney?
Hal Finney was a software developer, cipherpunk and cryptography advocate who worked on many relevant security-related software projects, the original Bitcoin Core source being on...
Why are there so many cryptocurrencies?
Why so many cryptocurrencies? Are all of them as complex as Bitcoin? Currently, the Crypto.BI cryptocurrency list has over 1993 entries. What's behind this crypto diversity?
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ELI5 PSBT – Partially Signed Bitcoin Transactions
Trustless operation is one of the key concepts behind cryptocurrencies. The idea is that you should not have to personally meet, or trust your peers, in order to perform successful transactions. Experienced crypto users may take this concept for granted, but come to think of it – every real world transaction before cryptocurrencies came about […]
shafs – SHA256 a filesystem and store it on SQLite. Find duplicate files, organize your data
shafs is a tool to help you SHA256 an entire filesystem, file by file, storing its hash and file size in a SQLite database. Dependencies shafs requires sqlite3 On Ubuntu do: Please check your distribution for the appropriate packages. Build Installation To install locally, uncomment last line in build.sh and re-run it or run : Manual Build […]
ELI5 Proof of Stake (PoS) – How does PoS work?
In the cryptocurrency universe, Proof of Stake (PoS) is an alternative to the Proof of Work (PoW) consensus mechanism. How PoS Works While PoW guarantees that each network participant has performed a certain amount of work in order to receive a reward, Proof of Stake requires participants to prove that they are willing to guarantee […]
ELI5 Bitcoin Puzzle Transactions
As the name implies, Bitcoin puzzle transactions are created as a challenge and not for the usual purpose of monetary transfer. Puzzles can be published for several reasons, including software test bounties, marketing campaigns or just for fun. Early Puzzles In the early days of Bitcoin, when $BTC coins could be found for free on […]
Concepts In This Page
Bitcoin is the world's first viable decentralized cryptocurrency. It was released on January 2009 by Satoshi Nakamoto.
Hal Finney was a cryptographer who pioneered the development of Bitcoin. Finney received the first ever Bitcoin transfer.
SHA256 is an encryption routine which produces a unique and irreversible digest for a given message.
A Bitcoin Puzzle is a cryptographic puzzle which carries Bitcoin as a reward. Those able to break the cryptography obtain access to the private key needed to unlock the Bitcoin.
A process or system by which multiple parties are able to reach consensus. In the context of cryptocurrencies, it's the process which allows for everyone to agree on everyone else's money balance. E.g. Bitcoin employs Nakamoto consensus via PoW mining.
A concept of value exchange that does not require physical tokens (coins or paper cash) to be used in order to trade. Cryptocurrencies are a type of digital money.
A distributed ledger is a decentralized financial database with data stored across multiple locations.
Craig Wright is a controversial cryptocurrency personality which claims to be Satoshi Nakamoto. He's the lead figure behind Bitcoin SV.
Elon Musk is a serial entrepreneur who co-founded innovative companies such as Paypal, Tesla and SpaceX. His ambitious projects and impressive technical feats have catapulted him to the helm of business innovators.
Halving (and halvening) is an automated procedure which halves the rewards paid out to miners who solve blocks. On Bitcoin this happens roughly every 4 years.