> ## Documentation Index > Fetch the complete documentation index at: https://docs.blockscout.com/llms.txt > Use this file to discover all available pages before exploring further. # Get batch by number. > Retrieves detailed information about a ZkSync batch by its number. ## OpenAPI ````yaml /openapi-specs/pro-api-v12.json get /{chain_id}/api/v2/zksync/batches/{batch_number_param} openapi: 3.0.0 info: contact: email: info@blockscout.com url: https://dev.blockscout.com/ description: >- Blockscout's universal multichain API for accessing explorer-indexed blockchain data - such as addresses, transactions, blocks, tokens, NFTs, contracts, and related search/results endpoints - across supported networks through a single standardized interface. title: Blockscout Pro API version: 0.5.0 servers: - url: https://api.blockscout.com security: - bearerAuth: [] - apiKeyAuth: [] paths: /{chain_id}/api/v2/zksync/batches/{batch_number_param}: get: tags: - zksync summary: Get batch by number. description: Retrieves detailed information about a ZkSync batch by its number. operationId: BlockScoutWeb.API.V2.ZkSyncController.batch parameters: - description: Batch number in: path name: batch_number_param required: true schema: minimum: 0 type: integer - description: The ID of the blockchain in: path name: chain_id required: true schema: type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/ZkSync.Batch' description: Batch info. headers: x-credits-remaining: description: >- Number of credits remaining in your plan. Resets daily on the free plan, monthly otherwise. schema: type: integer x-ratelimit-limit: description: >- Available requests per second with your plan. Returns -1 on internal error. schema: type: integer x-ratelimit-remaining: description: >- Remaining rate limit based on your queries. Returns -1 on internal error. schema: type: integer x-ratelimit-reset: description: >- Time in milliseconds until the rate limit resets. Returns -1 on internal error. schema: type: integer '404': content: application/json: schema: $ref: '#/components/schemas/NotFoundResponse' description: Not Found '422': content: application/json: schema: $ref: '#/components/schemas/JsonErrorResponse' description: Unprocessable Entity components: schemas: ZkSync.Batch: additionalProperties: false description: >- ZkSync rollup batch - a group of rollup blocks settled together on the parent chain - with the corresponding parent-chain lifecycle data. properties: commit_transaction_hash: description: >- Hash of the parent-chain transaction that committed this batch. `null` until the commit transaction is observed. nullable: true pattern: ^0x([A-Fa-f0-9]{64})$ type: string commit_transaction_timestamp: description: >- Timestamp of the parent-chain transaction that committed this batch. `null` until the commit transaction is observed. format: date-time nullable: true type: string end_block_number: description: Last rollup block included in the batch. minimum: 0 type: integer execute_transaction_hash: description: >- Hash of the parent-chain transaction that executed this batch. `null` until the execute transaction is observed. nullable: true pattern: ^0x([A-Fa-f0-9]{64})$ type: string execute_transaction_timestamp: description: >- Timestamp of the parent-chain transaction that executed this batch. `null` until the execute transaction is observed. format: date-time nullable: true type: string l1_gas_price: description: Parent-chain gas price observed for this batch, in wei. pattern: ^([1-9][0-9]*|0)$ type: string l1_transactions_count: description: Number of transactions in the batch originating on the parent chain. minimum: 0 type: integer l2_fair_gas_price: description: Rollup fair gas price for this batch, in wei. pattern: ^([1-9][0-9]*|0)$ type: string l2_transactions_count: description: Number of transactions in the batch originating on the rollup. minimum: 0 type: integer number: description: Batch number on the rollup. minimum: 0 type: integer prove_transaction_hash: description: >- Hash of the parent-chain transaction that proved this batch. `null` until the prove transaction is observed. nullable: true pattern: ^0x([A-Fa-f0-9]{64})$ type: string prove_transaction_timestamp: description: >- Timestamp of the parent-chain transaction that proved this batch. `null` until the prove transaction is observed. format: date-time nullable: true type: string root_hash: description: State root hash committed for this batch on the parent chain. pattern: ^0x([A-Fa-f0-9]{64})$ type: string start_block_number: description: First rollup block included in the batch. minimum: 0 type: integer status: description: > Lifecycle status of the batch: * `Sealed on L2` - Batch is finalized on the rollup and no parent-chain lifecycle transaction has been observed yet. * `Sent to L1` - Commit transaction has been submitted on the parent chain. * `Validated on L1` - Prove transaction has been submitted on the parent chain. * `Executed on L1` - Execute transaction has been submitted on the parent chain. enum: - Executed on L1 - Validated on L1 - Sent to L1 - Sealed on L2 type: string timestamp: description: Timestamp when the batch was sealed on the rollup. format: date-time type: string required: - number - timestamp - status - commit_transaction_hash - commit_transaction_timestamp - prove_transaction_hash - prove_transaction_timestamp - execute_transaction_hash - execute_transaction_timestamp - root_hash - l1_transactions_count - l2_transactions_count - l1_gas_price - l2_fair_gas_price - start_block_number - end_block_number title: ZkSync.Batch type: object NotFoundResponse: description: Response returned when the requested resource is not found properties: message: description: Error message indicating the requested resource was not found example: Resource not found type: string title: NotFoundResponse type: object JsonErrorResponse: properties: errors: items: properties: detail: example: null value where string expected type: string source: properties: pointer: example: /data/attributes/petName type: string required: - pointer type: object title: example: Invalid value type: string required: - title - source - detail type: object type: array required: - errors title: JsonErrorResponse type: object securitySchemes: bearerAuth: bearerFormat: JWT description: API key passed as a Bearer token in the Authorization header. scheme: bearer type: http apiKeyAuth: description: API key passed as the `apikey` query parameter. in: query name: apikey type: apiKey ````