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Web3

Revoke Approval

The act of removing a previously granted token spending permission from a program or delegate, preventing it from transferring your tokens in the future. Revoking approvals is an important security practice after interacting with DeFi protocols, especially unfamiliar ones, because outstanding approvals could be exploited if the approved program is compromised. On Solana, tools like Revoke.cash and wallet-built-in features allow users to view and revoke active token approvals.

IDrevoke-approval
Leitura rápida

Leitura rápida

Comece pela explicação mais curta e útil antes de aprofundar.

The act of removing a previously granted token spending permission from a program or delegate, preventing it from transferring your tokens in the future. Revoking approvals is an important security practice after interacting with DeFi protocols, especially unfamiliar ones, because outstanding approvals could be exploited if the approved program is compromised. On Solana, tools like Revoke.cash and wallet-built-in features allow users to view and revoke active token approvals.

Modelo mental

Modelo mental

Use primeiro a analogia curta para raciocinar melhor sobre o termo quando ele aparecer em código, docs ou prompts.

Pense nisso como um bloco de construção que ajuda a ligar uma definição isolada ao sistema maior onde ela vive.

Contexto técnico

Contexto técnico

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Wallets, assinatura, dApps e gestão de chaves.

Por que builders ligam para isso

Por que builders ligam para isso

Transforme o termo de vocabulário em algo operacional para produto e engenharia.

Este termo destrava conceitos adjacentes rapidamente, então funciona melhor quando você o trata como um ponto de conexão, não como definição isolada.

Handoff para IA

Handoff para IA

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Revoke Approval (revoke-approval)
Categoria: Web3
Definição: The act of removing a previously granted token spending permission from a program or delegate, preventing it from transferring your tokens in the future. Revoking approvals is an important security practice after interacting with DeFi protocols, especially unfamiliar ones, because outstanding approvals could be exploited if the approved program is compromised. On Solana, tools like Revoke.cash and wallet-built-in features allow users to view and revoke active token approvals.
Relacionados: Token Approval, Auto-Custódia, Smart Contract Risk
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O Copilot vai responder usando o termo atual, conceitos relacionados, modelos mentais e o grafo ao redor do glossário.

Grafo conceitual

Veja o termo como parte de uma rede, não como uma definição sem saída.

Esses ramos mostram quais conceitos esse termo toca diretamente e o que existe uma camada além deles.

Ramo

Token Approval

The permission granted to a program or delegate address to spend a specified amount of tokens from your account on your behalf. Token approvals are necessary for DeFi interactions like swapping or depositing into liquidity pools. On Solana, the SPL Token program's approve instruction sets a delegate and approved amount on a token account. Approvals should be set to the minimum needed and revoked when no longer required to limit exposure to potential exploits.

Programa SPL TokenAutoridade
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Ramo

Auto-Custódia

The practice of personally controlling your cryptographic private keys rather than entrusting them to a third party (exchange, custodian). Self-custody follows the principle 'not your keys, not your coins.' Hardware wallets and properly secured seed phrases enable self-custody. Risks include key loss (no recovery) and social engineering attacks.

CarteiraFrase Semente (Mnemônico)
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Ramo

Smart Contract Risk

The risk that bugs, logic errors, or exploitable vulnerabilities in on-chain program code could lead to loss of user funds. Smart contract risk is inherent to all DeFi participation because programs are immutable once deployed (unless upgradeable) and handle real value. Mitigations include professional security audits, formal verification, bug bounties, timelocks on upgrades, and starting with small amounts. Even audited programs can contain undiscovered vulnerabilities.

Auditoria de SegurançaRug Pull
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Próximos conceitos para explorar

Continue a cadeia de aprendizado em vez de parar em uma única definição.

Estes são os próximos conceitos que valem abrir se você quiser que este termo faça mais sentido dentro de um workflow real de Solana.

Web3

Token Approval

The permission granted to a program or delegate address to spend a specified amount of tokens from your account on your behalf. Token approvals are necessary for DeFi interactions like swapping or depositing into liquidity pools. On Solana, the SPL Token program's approve instruction sets a delegate and approved amount on a token account. Approvals should be set to the minimum needed and revoked when no longer required to limit exposure to potential exploits.

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Web3

Auto-Custódia

The practice of personally controlling your cryptographic private keys rather than entrusting them to a third party (exchange, custodian). Self-custody follows the principle 'not your keys, not your coins.' Hardware wallets and properly secured seed phrases enable self-custody. Risks include key loss (no recovery) and social engineering attacks.

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Web3

Smart Contract Risk

The risk that bugs, logic errors, or exploitable vulnerabilities in on-chain program code could lead to loss of user funds. Smart contract risk is inherent to all DeFi participation because programs are immutable once deployed (unless upgradeable) and handle real value. Mitigations include professional security audits, formal verification, bug bounties, timelocks on upgrades, and starting with small amounts. Even audited programs can contain undiscovered vulnerabilities.

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Web3

RPC (Remote Procedure Call)

The API interface for interacting with a blockchain node. Clients send JSON-RPC requests to read account state, submit transactions, and subscribe to events. Solana RPC methods include getAccountInfo, getBalance, sendTransaction, and simulateTransaction. Public RPCs have rate limits; production dApps use dedicated providers (Helius, Triton, QuickNode).

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Comumente confundido com

Termos próximos em vocabulário, sigla ou vizinhança conceitual.

Essas entradas são fáceis de misturar quando você lê rápido, faz prompting em um LLM ou está entrando em uma nova camada de Solana.

Web3token-approval

Token Approval

The permission granted to a program or delegate address to spend a specified amount of tokens from your account on your behalf. Token approvals are necessary for DeFi interactions like swapping or depositing into liquidity pools. On Solana, the SPL Token program's approve instruction sets a delegate and approved amount on a token account. Approvals should be set to the minimum needed and revoked when no longer required to limit exposure to potential exploits.

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Termos relacionados

Siga os conceitos que realmente dão contexto a este termo.

Entradas de glossário só ficam úteis quando estão conectadas. Esses links são o caminho mais curto para ideias adjacentes.

Web3token-approval

Token Approval

The permission granted to a program or delegate address to spend a specified amount of tokens from your account on your behalf. Token approvals are necessary for DeFi interactions like swapping or depositing into liquidity pools. On Solana, the SPL Token program's approve instruction sets a delegate and approved amount on a token account. Approvals should be set to the minimum needed and revoked when no longer required to limit exposure to potential exploits.

Abrir termo
Web3self-custody

Auto-Custódia

The practice of personally controlling your cryptographic private keys rather than entrusting them to a third party (exchange, custodian). Self-custody follows the principle 'not your keys, not your coins.' Hardware wallets and properly secured seed phrases enable self-custody. Risks include key loss (no recovery) and social engineering attacks.

Abrir termo
Web3smart-contract-risk

Smart Contract Risk

The risk that bugs, logic errors, or exploitable vulnerabilities in on-chain program code could lead to loss of user funds. Smart contract risk is inherent to all DeFi participation because programs are immutable once deployed (unless upgradeable) and handle real value. Mitigations include professional security audits, formal verification, bug bounties, timelocks on upgrades, and starting with small amounts. Even audited programs can contain undiscovered vulnerabilities.

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Mais na categoria

Permaneça na mesma camada e continue construindo contexto.

Essas entradas vivem ao lado do termo atual e ajudam a página a parecer parte de um grafo maior, não um beco sem saída.

Web3

Web3

The vision of a decentralized internet built on blockchain technology, where users own their data, identity, and digital assets. Web1 was read-only (static pages), Web2 is read-write (platforms like social media), Web3 is read-write-own (permissionless, user-sovereign). Web3 applications use wallets instead of logins and smart contracts instead of centralized servers.

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Web3

dApp (Aplicação Descentralizada)

An application with its backend logic running on a blockchain as smart contracts rather than centralized servers. dApps typically have a traditional web frontend that interacts with on-chain programs via RPC. Users authenticate with wallets instead of username/password. Examples: Uniswap (Ethereum DEX), Jupiter (Solana DEX), Magic Eden (NFT marketplace).

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Web3

Carteira

Software or hardware that manages cryptographic keys and enables users to sign transactions, view balances, and interact with dApps. Hot wallets (Phantom, Solflare, Backpack) are internet-connected for convenience. Cold wallets (Ledger, Trezor) store keys offline for security. Wallets don't actually 'hold' tokens—they hold the private keys that control on-chain accounts.

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Web3

Frase Semente (Mnemônico)

A 12 or 24-word human-readable backup of a wallet's master private key, generated using BIP-39 standard. The seed phrase can deterministically regenerate all derived keypairs (BIP-44 derivation paths). Losing the seed phrase means permanently losing access to all associated accounts. Never share, photograph, or store seed phrases digitally in plain text.

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