# TRACE_HEADER_STATE | @aa-sdk/core

> These are the headers that are used in the trace headers, could be found in the spec

> For the complete documentation index, see [llms.txt](/docs/llms.txt).

{/* This file is auto-generated by TypeDoc. Do not edit manually. */}

```ts
const TRACE_HEADER_STATE: "tracestate" = "tracestate";
```

Defined in: [aa-sdk/core/src/utils/traceHeader.ts:22](https://github.com/alchemyplatform/aa-sdk/blob/main/aa-sdk/core/src/utils/traceHeader.ts#L22)

These are the headers that are used in the trace headers, could be found in the spec

## See

https://www.w3.org/TR/trace-context/#design-overview