<!-- source: https://secondlayer.tools/docs/api-reference#streams-tip-object -->

## The Streams tip object

The newest canonical block and how far back this caller can read.

| Field | Type | Description |
| --- | --- | --- |
| `block_height` | integer | Highest canonical Stacks block this instance has indexed. |
| `block_hash` | string | That block's hash. |
| `burn_block_height` | integer | The Bitcoin block it anchors to. |
| `finalized_height` | integer | Highest Stacks block whose Bitcoin anchor has 6 confirmations. Rows at or below it are immutable. |
| `lag_seconds` | integer | Seconds since the tip block was produced. |
| `oldest_seekable_height` | integer · nullable | Always `null` — every account reads full history. Rows past the monthly allowance are a paid read, not a blocked one. |
| `oldest_cursor` | string · nullable | Always `null` — see `oldest_seekable_height`. |

```json
{
  "block_height": 9048928,
  "block_hash": "0xe79ae38b78b37ad1f5d16c7afd04b4e202efe8d983d981803b785ca64257933f",
  "burn_block_height": 968284,
  "finalized_height": 9048671,
  "lag_seconds": 4,
  "oldest_seekable_height": null,
  "oldest_cursor": null
}
```