> For the complete documentation index, see [llms.txt](https://docs.trustlesswork.com/trustless-work/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trustlesswork.com/trustless-work/v1-pt/introducao/stellar-and-soroban-the-backbone-of-trustless-work/trustlines.md).

# Trustlines

Na Stellar, as contas precisam optar explicitamente por manter e usar ativos. Essa adesão é chamada de trustline.

Trustlines são como contas Stellar optam por **ativos emitidos**.

Se uma conta não tem trustline, ela não pode manter esse ativo.

{% hint style="info" %}
Cada trustline aumenta o saldo mínimo da conta em **0,5 XLM** (reserva base).
{% endhint %}

### O que é uma trustline?

* Uma trustline vincula uma conta a um **emissor de ativos**.
* Ela permite que a conta **receba, mantenha e envie** esse ativo.
* Ela inclui um **limite** (saldo máximo que você aceita).
* Ela rastreia saldo e passivos (como ofertas em aberto).

### Por que as trustlines importam para depósitos em garantia

Escrows do Trustless Work podem usar **qualquer ativo emitido na Stellar**.

Todo participante deve ser capaz de manter esse ativo.

{% hint style="warning" %}
Se um signatário não puder manter o ativo do escrow, a etapa dele pode falhar. Defina as trustlines antes de testar qualquer fluxo de escrow.
{% endhint %}

### Endereços dos emissores (USDC / EURC)

Use estes endereços de emissor quando configurar a trustline do escrow.

{% tabs %}
{% tab title="USDC" %}
**Emissor da testnet**

[`GBBD47IF6LWK7P7MDEVSCWR7DPUWV3NY3DTQEVFL4NAT4AQH3ZLLFLA5`](https://stellar.expert/explorer/testnet/asset/USDC-GBBD47IF6LWK7P7MDEVSCWR7DPUWV3NY3DTQEVFL4NAT4AQH3ZLLFLA5)

**Emissor da mainnet**

[`GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN`](https://stellar.expert/explorer/public/asset/USDC-GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN)
{% endtab %}

{% tab title="EURC" %}
**Emissor da testnet**

[`GB3Q6QDZYTHWT7E5PVS3W7FUT5GVAFC5KSZFFLPU25GO7VTC3NM2ZTVO`](https://stellar.expert/explorer/testnet/asset/EURC-GB3Q6QDZYTHWT7E5PVS3W7FUT5GVAFC5KSZFFLPU25GO7VTC3NM2ZTVO?asset%5B%5D=EURC-GB3Q6QDZYTHWT7E5PVS3W7FUT5GVAFC5KSZFFLPU25GO7VTC3NM2ZTVO-1)

**Emissor da mainnet**

[`GDHU6WRG4IEQXM5NZ4BMPKOXHW76MZM4Y2IEMFDVXBSDP6SJY4ITNPP2`](https://stellar.expert/explorer/public/asset/EURC-GDHU6WRG4IEQXM5NZ4BMPKOXHW76MZM4Y2IEMFDVXBSDP6SJY4ITNPP2)
{% endtab %}
{% endtabs %}

{% hint style="info" %}
**Referências**

* Circle: [Endereços dos contratos USDC](https://developers.circle.com/stablecoins/usdc-contract-addresses)
* Circle: [Endereços dos contratos EURC](https://developers.circle.com/stablecoins/eurc-contract-addresses)
* Comunidade: [explorador de stablecoin da Stellar](https://stablecoin.stellarlight.xyz/)
  {% endhint %}


---

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