# Interface: Sum

Defined in: [packages/core/src/sync/negentropy.ts:140](https://github.com/leifriksheim/minca/blob/main/core/src/sync/negentropy.ts#L140)

The sum of some ids, and how many — a range's fingerprint before hashing

## Properties

| Property | Modifier | Type | Defined in |
| ------ | ------ | ------ | ------ |
| <a id="property-count"></a> `count` | `readonly` | `number` | [packages/core/src/sync/negentropy.ts:142](https://github.com/leifriksheim/minca/blob/main/core/src/sync/negentropy.ts#L142) |
| <a id="property-sum"></a> `sum` | `readonly` | `bigint` | [packages/core/src/sync/negentropy.ts:141](https://github.com/leifriksheim/minca/blob/main/core/src/sync/negentropy.ts#L141) |