> ## 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 withdrawal messages for a transaction. > Returns the list of Rollup withdrawal messages (L2ToL1Tx events) emitted by the given transaction. ## OpenAPI ````yaml /openapi-specs/pro-api-v11.yaml get /v2/arbitrum/messages/withdrawals/{transaction_hash} openapi: 3.0.0 info: contact: email: info@blockscout.com title: Blockscout version: 11.0.3 servers: - url: http://localhost/api variables: {} security: [] tags: - name: blocks - name: transactions - name: addresses - name: internal-transactions - name: tokens - name: token-transfers - name: smart-contracts - name: config - name: main-page - name: search - name: stats - name: csv-export - name: account-abstraction - name: withdrawals - name: advanced-filters - name: arbitrum - name: legacy - name: optimism - name: mud - name: celo - name: scroll - name: zilliqa paths: /v2/arbitrum/messages/withdrawals/{transaction_hash}: get: tags: - arbitrum summary: Get withdrawal messages for a transaction. description: >- Returns the list of Rollup withdrawal messages (L2ToL1Tx events) emitted by the given transaction. operationId: BlockScoutWeb.API.V2.ArbitrumController.withdrawals parameters: - description: Transaction hash. in: path name: transaction_hash required: true schema: $ref: '#/components/schemas/FullHash' - description: API key for rate limiting or for sensitive endpoints in: query name: apikey required: false schema: type: string x-struct: null x-validate: null - description: Secret key for getting access to restricted resources in: query name: key required: false schema: type: string x-struct: null x-validate: null responses: '200': content: application/json: schema: additionalProperties: false properties: items: items: $ref: '#/components/schemas/Arbitrum.Withdrawal' type: array x-struct: null x-validate: null required: - items type: object x-struct: null x-validate: null description: Withdrawal messages for the transaction. '422': content: application/json: schema: $ref: '#/components/schemas/JsonErrorResponse' description: Unprocessable Entity callbacks: {} components: schemas: FullHash: nullable: false pattern: ^0x([A-Fa-f0-9]{64})$ title: FullHash type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.FullHash x-validate: null Arbitrum.Withdrawal: additionalProperties: false description: Arbitrum Rollup withdrawal message. properties: arb_block_number: description: Rollup block number. minimum: 0 type: integer x-struct: null x-validate: null caller_address_hash: allOf: - $ref: '#/components/schemas/AddressHash' description: Address of the account that initiated the withdrawal on the Rollup. x-struct: null x-validate: null callvalue: allOf: - $ref: '#/components/schemas/IntegerString' description: Native coin amount in wei attached to the withdrawal message. x-struct: null x-validate: null completion_transaction_hash: $ref: '#/components/schemas/FullHashNullable' data: allOf: - $ref: '#/components/schemas/HexString' description: >- ABI-encoded calldata passed to the destination address when the withdrawal is executed on the Parent chain. Empty (`0x`) for plain native coin transfers. x-struct: null x-validate: null destination_address_hash: allOf: - $ref: '#/components/schemas/AddressHash' description: >- Recipient address on the Parent chain that will receive funds when the withdrawal is executed. x-struct: null x-validate: null eth_block_number: description: Parent chain block number. minimum: 0 type: integer x-struct: null x-validate: null id: description: Withdrawal message ID. minimum: 0 type: integer x-struct: null x-validate: null l2_timestamp: description: Unix timestamp of the originating transaction. minimum: 0 type: integer x-struct: null x-validate: null status: description: >- Withdrawal lifecycle status. Progresses from `initiated` (L2ToL1Tx event emitted) through `sent` (included in an RBlock) and `confirmed` (RBlock confirmed on Parent chain) to `relayed` (executed on Parent chain). `unknown` indicates the status could not be determined, e.g. when the Parent chain RPC is unavailable. enum: - unknown - initiated - sent - confirmed - relayed type: string x-struct: null x-validate: null token: additionalProperties: false description: >- Token withdrawal details. Present when the withdrawal is for a bridged token, null for native coin. nullable: true properties: address_hash: allOf: - $ref: '#/components/schemas/AddressHashNullable' description: Token contract address on the Parent chain. x-struct: null x-validate: null amount: allOf: - $ref: '#/components/schemas/IntegerString' description: Token amount in the token's smallest unit. x-struct: null x-validate: null decimals: minimum: 0 nullable: true type: integer x-struct: null x-validate: null destination_address_hash: allOf: - $ref: '#/components/schemas/AddressHashNullable' description: Token recipient address on the Parent chain. x-struct: null x-validate: null name: nullable: true type: string x-struct: null x-validate: null symbol: nullable: true type: string x-struct: null x-validate: null required: - address_hash - destination_address_hash - amount - decimals - name - symbol type: object x-struct: null x-validate: null required: - id - status - caller_address_hash - destination_address_hash - arb_block_number - eth_block_number - l2_timestamp - callvalue - data - token - completion_transaction_hash title: Arbitrum.Withdrawal type: object x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.Arbitrum.Withdrawal x-validate: null JsonErrorResponse: properties: errors: items: properties: detail: example: null value where string expected type: string x-struct: null x-validate: null source: properties: pointer: example: /data/attributes/petName type: string x-struct: null x-validate: null required: - pointer type: object x-struct: null x-validate: null title: example: Invalid value type: string x-struct: null x-validate: null required: - title - source - detail type: object x-struct: null x-validate: null type: array x-struct: null x-validate: null required: - errors title: JsonErrorResponse type: object x-struct: Elixir.OpenApiSpex.JsonErrorResponse x-validate: null AddressHash: nullable: false pattern: ^0x([A-Fa-f0-9]{40})$ title: AddressHash type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.AddressHash x-validate: null IntegerString: nullable: false pattern: ^-?([1-9][0-9]*|0)$ title: IntegerString type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.IntegerString x-validate: null FullHashNullable: nullable: true pattern: ^0x([A-Fa-f0-9]{64})$ title: FullHashNullable type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.FullHashNullable x-validate: null HexString: nullable: false pattern: ^0x([A-Fa-f0-9]*)$ title: HexString type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.HexString x-validate: null AddressHashNullable: nullable: true pattern: ^0x([A-Fa-f0-9]{40})$ title: AddressHashNullable type: string x-struct: Elixir.BlockScoutWeb.Schemas.API.V2.General.AddressHashNullable x-validate: null ````