Sublime

introduction to blockspace

A block is a collection of records, like a record of transaction. 

Blocks have limits, so they can only have so many transactions in them. When the blocks are full, we add them to the network by mining them. 

A hashing function outputs a hash when you put something into it. Bitcoin uses the SHA-256 hashing function. 

With hashing fun

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Blockchains are not simply about money. The modern-day alchemists who minted Bitcoin and other digital assets have animated a generation of technologists to reimagine how the financial and commercial world operates. The vision that these technologists aim to bring to fruition is not just about payment systems and other financial instruments. Large ... See more

Modèle d’origine des blockchains, celle du Bitcoin est publique : n’importe qui peut la télécharger, examiner toutes les transactions (via le site blockchain.info par exemple, qui fait défiler tous les blocs validés en direct), devenir un nœud, c’est-à-dire un membre du réseau, et tenter de miner un bloc en utilisant la puissance de calcul de son o

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The first major [blockchain] breakthrough was bitcoin, which invented digital gold. The second was Ethereum, which introduced general-purpose smart contracts. Helium presents the most ambitious new use case for blockchains we’ve seen since Ethereum.

The core idea is simple: the reuse of a block pays a microtransaction to the block owner and records a transaction of its use on a public ledger. The term “ref” comes from Roam, where the reuse of a block is called a reference and the original block maintains a back-reference to the reuse (AKA backlink).