Fundamentos de Programación

Account Model vs UTXO Model

Two models for tracking blockchain state. Account model (Solana, Ethereum): each account has a balance and state that is updated in place. UTXO model (Bitcoin, Cardano): transactions consume unspent transaction outputs and create new ones. Account models are more intuitive for smart contracts; UTXO models offer better privacy and parallelism for simple transfers.

IDaccount-model-vs-utxoAliasUTXO

Lectura rápida

Empieza por la explicación más corta y útil antes de profundizar.

Two models for tracking blockchain state. Account model (Solana, Ethereum): each account has a balance and state that is updated in place. UTXO model (Bitcoin, Cardano): transactions consume unspent transaction outputs and create new ones. Account models are more intuitive for smart contracts; UTXO models offer better privacy and parallelism for simple transfers.

Modelo mental

Usa primero la analogía corta para razonar mejor sobre el término cuando aparezca en código, docs o prompts.

Piensa en esto como un bloque de construcción que conecta una definición aislada con el sistema mayor donde vive.

Contexto técnico

Ubica el término dentro de la capa de Solana en la que vive para razonar mejor sobre él.

Serialización, memoria, estructuras de datos y bases de ingeniería.

Por qué le importa a un builder

Convierte el término de vocabulario en algo operacional para producto e ingeniería.

Este término desbloquea conceptos adyacentes rápido, así que funciona mejor cuando lo tratas como un punto de conexión y no como una definición aislada.

Handoff para IA

Handoff para IA

Usa este bloque compacto cuando quieras dar contexto sólido a un agente o asistente sin volcar toda la página.

Account Model vs UTXO Model (account-model-vs-utxo)
Categoría: Fundamentos de Programación
Definición: Two models for tracking blockchain state. Account model (Solana, Ethereum): each account has a balance and state that is updated in place. UTXO model (Bitcoin, Cardano): transactions consume unspent transaction outputs and create new ones. Account models are more intuitive for smart contracts; UTXO models offer better privacy and parallelism for simple transfers.
Aliases: UTXO
Relacionados: Cuenta, Nullifier
Glossary Copilot

Haz preguntas de Solana con contexto aterrizado sin salir del glosario.

Usa contexto del glosario, relaciones entre términos, modelos mentales y builder paths para recibir respuestas estructuradas en vez de output genérico.

Abrir workspace completa del Copilot
Explicar este código

Opcional: pega código Anchor, Solana o Rust para que el Copilot mapee primitivas de vuelta al glosario.

Haz una pregunta aterrizada en el glosario

Haz una pregunta aterrizada en el glosario

El Copilot responderá usando el término actual, conceptos relacionados, modelos mentales y el grafo alrededor del glosario.

Grafo conceptual

Ve el término como parte de una red, no como una definición aislada.

Estas ramas muestran qué conceptos toca este término directamente y qué existe una capa más allá de ellos.

Rama

Cuenta

The fundamental data storage unit on Solana. Every piece of state is stored in an account identified by a 32-byte public key. Accounts hold a lamport balance, an owner program, a data byte array (up to 10MB), and an executable flag. Only the owning program can modify an account's data, but anyone can credit lamports to it.

Rama

Nullifier

A nullifier is a cryptographic value derived deterministically from a compressed account's leaf hash (and optionally a secret) that is published and recorded on-chain when that compressed account is consumed (spent) in a state transition, permanently marking the account as used and preventing it from being spent a second time in a double-spend attack. In Light Protocol, nullifiers are inserted into an on-chain nullifier queue account and periodically batch-processed by Forester nodes into a nullifier set stored in a separate Merkle tree, allowing the validity proof to assert both that the input account exists (inclusion proof) and that its nullifier has not yet been recorded (non-membership proof). The nullifier scheme allows compressed accounts to be treated as UTXOs — each account is consumed once and replaced by one or more output accounts — while maintaining the privacy and succinctness properties of the ZK proof system.

Siguientes conceptos para explorar

Mantén la cadena de aprendizaje en movimiento en lugar de parar en una sola definición.

Estos son los siguientes conceptos que vale la pena abrir si quieres que este término tenga más sentido dentro de un workflow real de Solana.

Modelo de Programación

Cuenta

The fundamental data storage unit on Solana. Every piece of state is stored in an account identified by a 32-byte public key. Accounts hold a lamport balance, an owner program, a data byte array (up to 10MB), and an executable flag. Only the owning program can modify an account's data, but anyone can credit lamports to it.

Compresión ZK

Nullifier

A nullifier is a cryptographic value derived deterministically from a compressed account's leaf hash (and optionally a secret) that is published and recorded on-chain when that compressed account is consumed (spent) in a state transition, permanently marking the account as used and preventing it from being spent a second time in a double-spend attack. In Light Protocol, nullifiers are inserted into an on-chain nullifier queue account and periodically batch-processed by Forester nodes into a nullifier set stored in a separate Merkle tree, allowing the validity proof to assert both that the input account exists (inclusion proof) and that its nullifier has not yet been recorded (non-membership proof). The nullifier scheme allows compressed accounts to be treated as UTXOs — each account is consumed once and replaced by one or more output accounts — while maintaining the privacy and succinctness properties of the ZK proof system.

Fundamentos de Programación

AES-GCM-SIV

Authenticated encryption scheme combining AES block cipher with Galois/Counter Mode and Synthetic Initialization Vector for nonce-misuse resistance. Used in Solana's Token-2022 confidential transfers to encrypt token amounts on-chain while preserving the ability to prove balance validity through zero-knowledge proofs.

Fundamentos de Programación

Rust

A systems programming language emphasizing memory safety, zero-cost abstractions, and concurrency without a garbage collector. Rust uses an ownership model with borrow checking at compile time to prevent data races and null pointer bugs. It is the primary language for Solana program development (via Anchor or native solana-program crate) and the Agave validator client.

Términos relacionados

Sigue los conceptos que realmente le dan contexto a este término.

Las entradas del glosario se vuelven útiles cuando están conectadas. Estos enlaces son el camino más corto hacia ideas adyacentes.

Modelo de Programaciónaccount

Cuenta

The fundamental data storage unit on Solana. Every piece of state is stored in an account identified by a 32-byte public key. Accounts hold a lamport balance, an owner program, a data byte array (up to 10MB), and an executable flag. Only the owning program can modify an account's data, but anyone can credit lamports to it.

Compresión ZKnullifier

Nullifier

A nullifier is a cryptographic value derived deterministically from a compressed account's leaf hash (and optionally a secret) that is published and recorded on-chain when that compressed account is consumed (spent) in a state transition, permanently marking the account as used and preventing it from being spent a second time in a double-spend attack. In Light Protocol, nullifiers are inserted into an on-chain nullifier queue account and periodically batch-processed by Forester nodes into a nullifier set stored in a separate Merkle tree, allowing the validity proof to assert both that the input account exists (inclusion proof) and that its nullifier has not yet been recorded (non-membership proof). The nullifier scheme allows compressed accounts to be treated as UTXOs — each account is consumed once and replaced by one or more output accounts — while maintaining the privacy and succinctness properties of the ZK proof system.

Más en la categoría

Quédate en la misma capa y sigue construyendo contexto.

Estas entradas viven junto al término actual y ayudan a que la página se sienta parte de un grafo de conocimiento más amplio en lugar de un callejón sin salida.

Fundamentos de Programación

Rust

A systems programming language emphasizing memory safety, zero-cost abstractions, and concurrency without a garbage collector. Rust uses an ownership model with borrow checking at compile time to prevent data races and null pointer bugs. It is the primary language for Solana program development (via Anchor or native solana-program crate) and the Agave validator client.

Fundamentos de Programación

TypeScript

A statically typed superset of JavaScript that compiles to plain JavaScript. TypeScript adds type annotations, interfaces, generics, and enums to catch errors at compile time. It is the standard language for Solana client-side development—wallet adapters, dApp frontends, test suites, and SDK interactions (web3.js, Anchor client) are typically written in TypeScript.

Fundamentos de Programación

JavaScript

The ubiquitous scripting language for web development, running in browsers and Node.js. JavaScript is dynamically typed and event-driven. Most Solana dApp frontends and scripts use JavaScript/TypeScript with libraries like @solana/web3.js. Node.js enables server-side JS for backend services, indexers, and bot development.

Fundamentos de Programación

Node.js

A JavaScript runtime built on Chrome's V8 engine that enables server-side JavaScript execution. Node.js uses an event-driven, non-blocking I/O model. In the Solana ecosystem, Node.js is used for: running Anchor tests (Mocha/Jest), backend services, transaction bots, indexers, and CLI tools. npm/yarn/pnpm manage JavaScript package dependencies.