Kusama blocks API

openapi: 3.2.0
info:
  title: Substrate API Sidecar accounts Blocks API
  description: '> ⚠️ **Deprecation Notice** — `substrate-api-sidecar` is deprecated in favor of

    > [`polkadot-rest-api`](https://github.com/paritytech/polkadot-rest-api), a ground-up Rust rewrite

    > built on [`subxt`](https://github.com/paritytech/subxt) with 1:1 API compatibility (endpoints

    > served under `/v1/`, e.g. `/v1/blocks/head`), stable memory under sustained load, significantly

    > lower latency and higher throughput, and native SCALE decoding via `parity-scale-codec`.

    >

    > **Migrate today:** Docker `paritytech/polkadot-rest-api:v0.1.0` ·

    > [crate](https://crates.io/crates/polkadot-rest-api) ·

    > [migration guide](https://github.com/paritytech/polkadot-rest-api/blob/main/docs/guides/MIGRATION.md) ·

    > [docs](https://paritytech.github.io/polkadot-rest-api/) ·

    > [issues](https://github.com/paritytech/polkadot-rest-api/issues)


    Substrate API Sidecar is a REST service that makes it easy to interact with blockchain nodes

    built using Substrate''s FRAME framework.

    '
  contact:
    url: https://github.com/paritytech/substrate-api-sidecar
  license:
    name: GPL-3.0-or-later
    url: https://github.com/paritytech/substrate-api-sidecar/blob/master/LICENSE
  version: 20.14.1
servers:
- url: https://polkadot-public-sidecar.parity-chains.parity.io/
  description: Polkadot Parity public sidecar
- url: https://kusama-public-sidecar.parity-chains.parity.io/
  description: Kusama Parity public sidecar
- url: https://polkadot-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Polkadot Asset Hub Parity public sidecar
- url: https://kusama-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Kusama Asset Hub Parity public sidecar
- url: http://localhost:8080
  description: Localhost
tags:
- name: blocks
paths:
  /blocks:
    get:
      tags:
      - blocks
      summary: Get a range of blocks by their height.
      description: Given a range query parameter return an array of all the blocks within that range. When `useRcBlock` parameter is used, the range represents relay chain block numbers and the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp` for each block. Relay chain blocks without corresponding Asset Hub blocks are skipped.
      operationId: getBlock
      parameters:
      - name: range
        in: query
        description: A range of integers. There is a max limit of 500 blocks per request.
        required: true
        example: 0-499
        schema:
          type: string
      - name: eventDocs
        in: query
        description: When set to `true`, every event will have an extra `docs` property with a string of the events documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: extrinsicDocs
        in: query
        description: When set to `true`, every extrinsic will have an extra `docs` property with a string of the extrinsics documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: noFees
        in: query
        description: When set to `true`, the fee won't be calculated for the extrinsics.
        required: false
        schema:
          type: boolean
          default: false
      - name: useEvmFormat
        in: query
        description: When set to `true`, every extrinsic's event emitted by pallet-revive will have the address data formatted to EVM.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlock
        in: query
        description: When set to `true`, the range parameter represents relay chain block numbers and the response includes additional fields for each block. Only supported for Asset Hub endpoints with relay chain API available. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Blocks'
        '400':
          description: invalid Block identifier supplied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/{blockId}:
    get:
      tags:
      - blocks
      summary: Get a block by its height or hash.
      description: Returns a single block. BlockId can either be a block hash or a block height. Replaces `/block/{number}` from versions < v1.0.0. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getBlockById
      parameters:
      - name: blockId
        in: path
        description: Block identifier, as the block height or block hash.
        required: true
        schema:
          pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}
          type: string
      - name: eventDocs
        in: query
        description: When set to `true`, every event will have an extra `docs` property with a string of the events documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: extrinsicDocs
        in: query
        description: When set to `true`, every extrinsic will have an extra `docs` property with a string of the extrinsics documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: noFees
        in: query
        description: When set to `true`, the fee won't be calculated for the extrinsics.
        required: false
        schema:
          type: boolean
          default: false
      - name: finalizedKey
        in: query
        description: When set to false, this will override the chain-config, and omit the finalized key in the response. This can increase performance slightly by avoiding an additional RPC call to the node.
        required: false
        schema:
          type: boolean
      - name: decodedXcmMsgs
        in: query
        description: When set to `true`, this will show the decoded XCM messages within the extrinsics of the requested block.
        required: false
        schema:
          type: boolean
          default: false
      - name: paraId
        in: query
        description: When it is set, this will return only the decoded XCM messages for the specified origin Parachain Id (originParaId). To activate this functionality, ensure that the `decodedXcmMsgs` parameter is set to true.
        required: false
        schema:
          type: string
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the relay chain block identifier to determine the corresponding Asset Hub block. Only supported for Asset Hub endpoints with relay chain API available. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      - name: useEvmFormat
        in: query
        description: When set to `true`, every extrinsic's event emitted by pallet-revive will have the address data formatted to EVM.
        required: false
        schema:
          type: boolean
          default: false
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/BlockWithDecodedXcmMsgs'
                - type: array
                  items:
                    $ref: '#/components/schemas/BlockWithDecodedXcmMsgs'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
        '400':
          description: invalid Block identifier supplied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/{blockId}/header:
    get:
      tags:
      - blocks
      summary: Get a block's header by its height or hash.
      description: Returns a single block's header. BlockId can either be a block hash or a block height. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getBlockHeaderById
      parameters:
      - name: blockId
        in: path
        description: Block identifier, as the block height or block hash.
        required: true
        schema:
          pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}
          type: string
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the relay chain block identifier to determine the corresponding Asset Hub block. Only supported for Asset Hub endpoints with relay chain API available. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/BlockHeader'
                - type: array
                  items:
                    $ref: '#/components/schemas/BlockHeader'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
        '400':
          description: invalid Block identifier supplied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/{blockId}/extrinsics/{extrinsicIndex}:
    get:
      tags:
      - blocks
      summary: Get an extrinsic by its extrinsicIndex and block height or hash. The pair blockId, extrinsicIndex is sometimes referred to as a Timepoint.
      description: Returns a single extrinsic. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getExtrinsicByTimepoint
      parameters:
      - name: blockId
        in: path
        description: Block identifier, as the block height or block hash.
        required: true
        schema:
          pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}
          type: string
      - name: extrinsicIndex
        in: path
        description: The extrinsic's index within the block's body.
        required: true
        schema:
          type: string
      - name: eventDocs
        in: query
        description: When set to `true`, every event will have an extra `docs` property with a string of the events documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: extrinsicDocs
        in: query
        description: When set to `true`, every extrinsic will have an extra `docs` property with a string of the extrinsics documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: noFees
        in: query
        description: When set to `true`, the fee won't be calculated for the extrinsic.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the relay chain block identifier to determine the corresponding Asset Hub block. Only supported for Asset Hub endpoints with relay chain API available. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      - name: useEvmFormat
        in: query
        description: When set to `true`, every extrinsic's event emitted by pallet-revive will have the address data formatted to EVM.
        required: false
        schema:
          type: boolean
          default: false
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/ExtrinsicIndex'
                - type: array
                  items:
                    $ref: '#/components/schemas/ExtrinsicIndex'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
        '400':
          description: Requested `extrinsicIndex` does not exist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/head:
    get:
      tags:
      - blocks
      summary: Get the most recently finalized block.
      description: Returns the most recently finalized block. Replaces `/block` from versions < v1.0.0. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getHeadBlock
      parameters:
      - name: finalized
        in: query
        description: Boolean representing whether or not to get the finalized head. If it is not set the value defaults to true. When set to false it will attempt to get the newest known block, which may not be finalized.
        required: false
        schema:
          type: boolean
          default: true
      - name: eventDocs
        in: query
        description: When set to `true`, every event will have an extra `docs` property with a string of the events documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: extrinsicDocs
        in: query
        description: When set to `true`, every extrinsic will have an extra `docs` property with a string of the extrinsics documentation.
        required: false
        schema:
          type: boolean
          default: false
      - name: noFees
        in: query
        description: When set to `true`, the fee won't be calculated for the extrinsics.
        required: false
        schema:
          type: boolean
          default: false
      - name: decodedXcmMsgs
        in: query
        description: When set to `true`, this will show the decoded XCM messages within the extrinsics of the requested block.
        required: false
        schema:
          type: boolean
          default: false
      - name: paraId
        in: query
        description: When it is set, this will return only the decoded XCM messages for the specified origin Parachain Id (originParaId). To activate this functionality, ensure that the `decodedXcmMsgs` parameter is set to true.
        required: false
        schema:
          type: string
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the latest relay chain block to determine the corresponding Asset Hub block. Only supported for Asset Hub endpoints with relay chain API available. Respects the `finalized` parameter when determining which relay chain block to use. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      - name: useEvmFormat
        in: query
        description: When set to `true`, every extrinsic's event emitted by pallet-revive will have the address data formatted to EVM.
        required: false
        schema:
          type: boolean
          default: false
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/BlockWithDecodedXcmMsgs'
                - type: array
                  items:
                    $ref: '#/components/schemas/BlockWithDecodedXcmMsgs'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
  /blocks/head/header:
    get:
      tags:
      - blocks
      summary: Get information about the header of the most recent finalized block.
      description: Returns the most recently finalized block's header. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getLatestBlockHeader
      parameters:
      - name: finalized
        in: query
        description: Boolean representing whether or not to get the finalized head. If it is not set the value defaults to true. When set to false it will attempt to get the newest known block, which may not be finalized.
        required: false
        schema:
          type: boolean
          default: true
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the latest relay chain block to determine the corresponding Asset Hub block header. Only supported for Asset Hub endpoints with relay chain API available. Respects the `finalized` parameter when determining which relay chain block to use. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/BlockHeader'
                - type: array
                  items:
                    $ref: '#/components/schemas/BlockHeader'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
        '400':
          description: invalid Block identifier supplied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/{blockId}/extrinsics-raw:
    get:
      tags:
      - blocks
      summary: Get a blocks header & its extrinsics as hex values.
      description: Returns a block & its extrinsics as hex values. BlockId can either be a block hash or a block height. When `useRcBlock` parameter is used, the response includes additional fields `rcBlockHash`, `rcBlockNumber`, and `ahTimestamp`.
      operationId: getBlockRawExtrinsics
      parameters:
      - name: blockId
        in: path
        description: Block identifier, as the block height or block hash.
        required: true
        schema:
          pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}
          type: string
      - name: useRcBlock
        in: query
        description: When set to `true`, it will use the relay chain block identifier to determine the corresponding Asset Hub block. Only supported for Asset Hub endpoints with relay chain API available. When used, returns an array of response objects or empty array if no Asset Hub block found.
        required: false
        schema:
          type: boolean
          default: false
      - name: useRcBlockFormat
        in: query
        description: Controls the response format when using 'useRcBlock=true'. When set to 'object', wraps the response in an object containing relay chain block info ('rcBlock') and the parachain data array ('parachainDataPerBlock'). When set to 'array' or omitted, returns the standard array format. Only valid when 'useRcBlock=true' is specified.
        required: false
        schema:
          type: string
          enum:
          - array
          - object
          description: Response format - 'array' (default) returns standard array, 'object' wraps response with rcBlock info.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/BlockRaw'
                - type: array
                  items:
                    $ref: '#/components/schemas/BlockRaw'
                description: Returns a single object when using standard parameters. Returns an array when using 'useRcBlock' parameter (array contains one object per Asset Hub block found, or empty array if none found).
        '400':
          description: invalid Block identifier supplied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /blocks/{blockId}/para-inclusions:
    get:
      tags:
      - blocks
      summary: Get all parachain inclusion information for a relay chain block.
      description: Returns all decoded parachain inclusion events (CandidateIncluded) for a relay chain block. BlockId can either be a block hash or a block height. This endpoint extracts and decodes the candidate descriptor, commitments hash, and parachain header information for each included parachain block.
      operationId: getBlockParaInclusions
      parameters:
      - name: blockId
        in: path
        description: Relay chain block identifier, as the block height or block hash.
        required: true
        schema:
          pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}
          type: string
      - name: paraId
        in: query
        description: Optional parachain ID to filter results. When provided, only the inclusion information for the specified parachain will be returned.
        required: false
        schema:
          type: string
          format: unsignedInteger
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BlockParaInclusions'
        '400':
          description: invalid Block identifier supplied or block does not contain paraInclusion events
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    SanitizedEvent:
      type: object
      properties:
        method:
          type: string
        data:
          type: array
          items:
            type: string
    ParaInclusion:
      type: object
      description: Information about a single parachain inclusion event
      properties:
        paraId:
          type: string
          description: The parachain ID
          format: unsignedInteger
        paraBlockNumber:
          type: number
          description: The parachain block number that was included (decoded from HeadData)
          format: unsignedInteger
        paraBlockHash:
          type: string
          description: The parachain block hash that was included (decoded from HeadData)
          format: hex
        descriptor:
          $ref: '#/components/schemas/ParaInclusionDescriptor'
        commitmentsHash:
          type: string
          description: Hash of the candidate commitments
          format: hex
        coreIndex:
          type: string
          description: Core index assigned to this parachain block
          format: unsignedInteger
        groupIndex:
          type: string
          description: Validator group index that backed this parachain block
          format: unsignedInteger
    DecodedXcmMsgsHorizontalMessagesInRelay:
      type: array
      items:
        type: object
        properties:
          originParaId:
            type: string
            format: unsignedInteger
            description: The Parachain id that the specific XCM message was sent from.
          destinationParaId:
            type: string
            format: unsignedInteger
            description: The Parachain id that the specific XCM message was sent to.
          data:
            type: object
            description: The decoded instructions included in the XCM message and their respective fields.
        description: Array that includes the Horizontal (`in transit`) messages when we are connected to a Relay Chain. Each block can contain one or more messages. If multiple messages share the same origin and destination paraId, they will be displayed within the data field.
    WeightsV2:
      type: object
      properties:
        refTime:
          type: string
          description: The weight of computational time used based on some reference hardware.
        proofSize:
          type: string
          description: The weight of storage space used by proof of validity.
    BlockFinalize:
      type: object
      properties:
        events:
          type: array
          items:
            $ref: '#/components/schemas/SanitizedEvent'
      description: Object with an array of `SanitizedEvent`s that occurred during block construction finalization with the `method` and `data` for each.
    ExtrinsicMethod:
      type: object
      properties:
        pallet:
          type: string
        method:
          type: string
      description: Extrinsic method
    BlockRaw:
      type: object
      properties:
        number:
          type: string
          description: The block's height.
          format: unsignedInteger
        parentHash:
          type: string
          description: The hash of the parent block.
          format: hex
        stateRoot:
          type: string
          description: The state root after executing this block.
          format: hex
        extrinsicRoot:
          type: string
          description: The Merkle root of the extrinsics.
          format: hex
        digest:
          type: object
          properties:
            logs:
              type: array
              items:
                $ref: '#/components/schemas/DigestItem'
              description: Array of `DigestItem`s associated with the block.
        extrinsics:
          type: array
          description: Array of raw extrinsics (inherents and transactions) within the block.
          items:
            type: string
        rcBlockHash:
          type: string
          description: The relay chain block hash used for the query. Only present when `useRcBlock` parameter is used.
        rcBlockNumber:
          type: string
          description: The relay chain block number used for the query. Only present when `useRcBlock` parameter is used.
          format: unsignedInteger
        ahTimestamp:
          type: string
          description: The Asset Hub block timestamp. Only present when `useRcBlock` parameter is used.
          format: unsignedInteger
    BlockInitialize:
      type: object
      properties:
        events:
          type: array
          items:
            $ref: '#/components/schemas/SanitizedEvent'
      description: Object with an array of `SanitizedEvent`s that occurred during block initialization with the `method` and `data` for each.
    BlockWithDecodedXcmMsgs:
      allOf:
      - $ref: '#/components/schemas/Block'
      - $ref: '#/components/schemas/DecodedXcmMsgs'
      description: Block information that includes the decoded XCM messages if any are found in the queried block. If not, the decodedXcmMsgs object will be returned with three empty arrays corresponding to each direction, horizontalMessages, downwardMessages, upwardMessages.
    BlockHeader:
      type: object
      properties:
        parentHash:
          type: string
          description: The hash of the parent block.
          format: hex
        number:
          type: string
          description: The block's height.
          format: unsignedInteger
        stateRoot:
          type: string
          description: The state root after executing this block.
          format: hex
        extrinsicRoot:
          type: string
          description: The Merkle root of the extrinsics.
          format: hex
        digest:
          type: object
          properties:
            logs:
              type: array
              items:
                $ref: '#/components/schemas/DigestItem'
              description: Array of `DigestItem`s associated with the block.
        rcBlockHash:
          type: string
          description: The relay chain block hash used for the query. Only present when `useRcBlock` parameter is

# --- truncated at 32 KB (44 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/kusama/refs/heads/main/openapi/kusama-blocks-api-openapi.yml