Prepare, brace your self. Studying this would possibly enrage and confound you, it’d confuse you, you would possibly even get mad sufficient to punch your display (don’t do this.) Take into account this a set off warning.
Bitcoin is a database. Interval. That’s what it’s. The blockchain is a database for storing previous updates to have the ability to reproduce the present state of that database, the UTXO set. Your complete Bitcoin protocol is constructed round the database. What’s a sound entry in that database, and what’s not a sound database entry? Who’s allowed to suggest entries to that database, how do you make sure that solely these customers’ entries will probably be thought of and accepted? What’s the authentication mechanism proscribing writing entries to this database? How do you throttle database entries so that individuals can’t make so many it overloads or crashes the software program managing the database? How do you make sure that folks can’t make single entries which are giant sufficient to trigger different denial of service considerations?
It’s all concerning the database.
Proof-of-work? Your complete goal of that within the protocol is to handle who can really course of updates to the database. Bitcoin is supposed to be a decentralized system, so it wanted a means for the database to be up to date in a decentralized means whereas nonetheless permitting customers to come back to consensus with all their particular person copies of the database on a single replace to it. If everyone seems to be simply updating their very own copy of the database by themselves, there is no such thing as a means everybody will come to consensus on a single model of the database. In the event you rely upon some authority figures to deal with updates, then the replace course of just isn’t really decentralized. This was the purpose of POW, to permit anybody to course of an replace, however not with out incurring a verifiable value in doing so.
Proof-of-work is solely a decentralized mechanism for updating a database.
Your complete peer-to-peer community structure? It exists solely to propagate proposed database replace entries (transactions), and finalized database updates (blocks). Nodes verifying transactions as they enter their mempool? It’s to pre-filter proposed entry updates to the database and guarantee they’re legitimate. Nodes verifying {that a} block meets the required issue goal? It’s to pre-filter a proposed database replace and guarantee it is legitimate earlier than passing it on to different nodes to replace their native copy.
The peer-to-peer community exists purely to reconcile a number of copies of the identical database.
Bitcoin script? It actually exists for the only real goal of functioning as an authorization mechanism for entries within the database. As a way to delete an present entry within the present database state, the UTXO set, a person proposing that replace should present authentication proof assembly the situations of the script locking the present database entry. Solely present entries, or UTXOs, may be “spent” with the intention to authorize the creation of recent entries into the database. Miners are the one ones within the protocol allowed to create entries with out assembly the situation of eradicating an present one by assembly the authorization necessities set out in it’s locking script.
Bitcoin script is solely a mechanism to manage and prohibit who can write to the database.
Each single side of what Bitcoin is revolves across the core central perform of sustaining a database, and making certain that many community individuals all retaining their particular person copies of that database stay in sync and agree on what the present state of the database is. All the properties that make Bitcoin worth as a type of cash, or a way of fee, are actually derived from the way it capabilities as a database.
Many individuals on this area assume that this database needs to be used solely for a way of fee, or a type of cash, and I empathize with that view. I too assume that’s a very powerful use case for it, and I feel that each effort needs to be taken with the intention to scale that specific use case as a lot as potential with out sacrificing the sovereignty and safety of having the ability to instantly work together with that database your self.
However it’s nonetheless only a database whenever you boil right down to the target actuality of what Bitcoin is. Folks keen to pay the prices denominated in satoshis to write down an entry that’s thought of legitimate underneath the principles of that database can accomplish that. There’s nothing you are able to do with the intention to cease them wanting altering what is taken into account a sound entry in that database, which entails convincing everybody else to additionally undertake a brand new ruleset concerning what’s a sound entry.
Folks can freely compete throughout the consensus guidelines to write down no matter they need to this database, so long as they pay the prices required of the principles and incentive construction of mining to take action. Interval. Are most of the issues folks can and are coming into into the database silly? Sure. In fact they’re. The web is affected by thoughts numbing quantities of silly issues in siloed databases everywhere. Why is that? As a result of persons are keen to pay the fee to place silly issues in a database.
Whether or not that’s customers of the database paying the supplier and working, or the operator themselves permitting sure issues to be entered as a part of operations with out passing the fee to a person, is irrelevant. These silly issues solely exist someplace in digital type as a result of not directly, the fee is paid to take action.
Bitcoin is basically no completely different from every other database in that regard. The one distinction is that there is no such thing as a singular proprietor or gatekeeper dictating what’s allowed or not. Each proprietor of a duplicate of the Bitcoin database is able to permitting or not permitting no matter they need; the issue is that if they select to refuse one thing that everybody else finds acceptable, they fall out of consensus with everybody else. Their native database is not in sync with the worldwide digital database that everybody else is following and utilizing.
In the event you discover sure database entries unacceptable, then by all means change the principles your native copy validates new entries towards. However that’s reducing off your nostril to spite your face. On the finish of the day Bitcoin runs on one easy axiom: pay to play. If folks pay the price, they get to play. That’s simply the way it works.
On the finish of the day, it’s fully as much as each particular person what they need to permit or not permit of their database, however reducing by way of all of the semantics and philosophical debates happening proper now one factor stays unquestionably and objectively true: Bitcoin is a database.