> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ton.org/llms.txt
> Use this file to discover all available pages before exploring further.
## Submitting Feedback
If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:
POST https://docs.ton.org/feedback
```json
{
"path": "/ecosystem/api/toncenter/v2/blocks/get-masterchain-block-signatures",
"feedback": "Description of the issue"
}
```
Only submit feedback when you have something specific and actionable to report.
# Get masterchain block signatures
> Returns validator signatures for a specific masterchain block. Each signature proves that a validator approved this block. Use this for building cryptographic proofs or verifying block authenticity in trustless applications.
## OpenAPI
````yaml get /api/v2/getMasterchainBlockSignatures
openapi: 3.1.1
info:
title: TON HTTP API C++
description: >
This API enables HTTP access to TON blockchain - getting accounts and
wallets information, looking up blocks and transactions, sending messages to
the blockchain, calling get methods of smart contracts, and more.
In addition to REST API, all methods are available through a JSON-RPC
endpoint with `method` equal to method name and `params` passed as a
dictionary.
The response contains a JSON object, which always has a boolean field `ok`
and either `error` or `result`. If `ok` equals true, the request was
successful and the result of the query can be found in the `result` field.
In case of an unsuccessful request, `ok` equals false and the error is
explained in the `error`.
API Key should be sent either as `api_key` query parameter or `X-API-Key`
header
version: 2.1.1
servers:
- url: https://toncenter.com
description: TON Mainnet
- url: https://testnet.toncenter.com
description: TON Testnet
security: []
tags:
- name: Accounts
description: Information about accounts
- name: Transactions
description: Fetching and locating transactions
- name: Blocks
description: Information about blocks
- name: Run method
description: Run get-method of smart contracts
- name: Send
description: Send data to blockchain
- name: Utils
description: Some useful methods
- name: Configuration
description: Information about blockchain config
- name: RPC
description: JSON-RPC and POST endpoints
paths:
/api/v2/getMasterchainBlockSignatures:
get:
tags:
- Blocks
summary: Get masterchain block signatures
description: >-
Returns validator signatures for a specific masterchain block. Each
signature proves that a validator approved this block. Use this for
building cryptographic proofs or verifying block authenticity in
trustless applications.
operationId: getMasterchainBlockSignatures_get
parameters:
- $ref: '#/components/parameters/seqno'
responses:
'200':
description: Returns validator signatures for the specified masterchain block.
content:
application/json:
schema:
$ref: '#/components/schemas/MasterchainBlockSignaturesResponse'
'401':
$ref: '#/components/responses/401'
'403':
$ref: '#/components/responses/403'
'422':
$ref: '#/components/responses/422_block'
'429':
$ref: '#/components/responses/429'
'504':
$ref: '#/components/responses/504'
security:
- APIKeyHeader: []
- APIKeyQuery: []
components:
parameters:
seqno:
name: seqno
in: query
description: >-
Masterchain block sequence number (block height). Used to query state at
a specific point in time. If omitted, returns the current state.
required: true
schema:
type: integer
format: int32
schemas:
MasterchainBlockSignaturesResponse:
type: object
additionalProperties: false
required:
- ok
- result
properties:
ok:
type: boolean
default: true
description: >-
Returns `true` if the request succeeded; otherwise `false`. See the
`error` field for details.
result:
$ref: '#/components/schemas/MasterchainBlockSignatures'
description: Response data. Present only when `ok` is `true`.
'@extra':
type: string
description: >-
Optional request ID that can be passed in the request and received
back in the response. Useful for matching async responses.
MasterchainBlockSignatures:
type: object
additionalProperties: false
properties:
'@type':
type: string
enum:
- blocks.blockSignatures
default: blocks.blockSignatures
description: >-
TonLib type identifier for block signature collections. Refer to the
[TonLib type reference](/ecosystem/api/toncenter/v2-tonlib-types)
for a full list.
id:
$ref: '#/components/schemas/TonBlockIdExt'
description: Full block identifier for the signed block.
signatures:
type: array
items:
$ref: '#/components/schemas/BlockSignature'
description: >-
Array of validator signatures for this block. Each entry contains
the validator's short node ID (base64 hash) and their Ed25519
signature (base64).
required:
- '@type'
- id
- signatures
TonBlockIdExt:
type: object
additionalProperties: false
properties:
'@type':
type: string
enum:
- ton.blockIdExt
default: ton.blockIdExt
description: >-
TonLib type identifier for full block identifiers. Refer to the
[TonLib type reference](/ecosystem/api/toncenter/v2-tonlib-types)
for a full list.
workchain:
type: integer
description: 'Workchain ID: `-1` for masterchain, `0` for basechain.'
shard:
type: string
x-usrv-cpp-type: std::int64_t
description: >-
Shard identifier as a signed 64-bit integer string. Masterchain uses
`-9223372036854775808`.
seqno:
type: integer
description: >-
Block sequence number within its workchain and shard. For the
masterchain (workchain `-1`), this equals the global block height.
For basechain shards (workchain `0`), this is the sequence number
local to that specific shard, not a global height.
root_hash:
$ref: '#/components/schemas/TonHash'
description: Merkle root hash of the block state tree.
file_hash:
$ref: '#/components/schemas/TonHash'
description: >-
Hash of the serialized block file. Together with `root_hash`,
uniquely identifies a block.
required:
- '@type'
- workchain
- shard
- seqno
- root_hash
- file_hash
description: >-
A complete block identifier with cryptographic hashes. Contains
`workchain`, `shard`, `seqno` (position) plus `root_hash` and
`file_hash` (verification).
BlockSignature:
type: object
additionalProperties: false
properties:
'@type':
type: string
enum:
- blocks.signature
default: blocks.signature
description: >-
TonLib type identifier for validator signature objects. Refer to the
[TonLib type reference](/ecosystem/api/toncenter/v2-tonlib-types)
for a full list.
node_id_short:
$ref: '#/components/schemas/TonHash'
description: >-
Short public key hash of the validator node that produced this
signature.
signature:
$ref: '#/components/schemas/Bytes'
description: Ed25519 signature of the block by this validator, base64 encoded.
required:
- '@type'
- node_id_short
- signature
TonHash:
type: string
x-usrv-cpp-type: ton_http::types::ton_hash
description: >-
A 256-bit hash value. Accepts either hex format (64 characters) or
base64 format (44 characters). Used for block hashes, transaction
hashes, and cryptographic proofs.
Bytes:
type: string
x-usrv-cpp-type: ton_http::types::bytes
description: >-
Binary data encoded as base64. Used for serialized cells (BoC format),
message bodies, and smart contract code/data.
responses:
'401':
description: API key does not exist. Check for typos or generate a new key.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 401
description: HTTP status code `401`.
error:
type: string
enum:
- API key does not exist
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 401
error: API key does not exist
'403':
description: >-
API key is not allowed for this network (e.g. testnet key used on
mainnet).
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 403
description: HTTP status code `403`.
error:
type: string
enum:
- Network not allowed
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 403
error: Network not allowed
'429':
description: >-
Rate limit exceeded. Back off and retry, or use an API key for higher
limits.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 429
description: HTTP status code `429`.
error:
type: string
enum:
- Ratelimit exceeded
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 429
error: Ratelimit exceeded
'504':
description: Timeout waiting for liteserver response.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 504
description: HTTP status code `504`.
error:
type: string
enum:
- LITE_SERVER_NETWORK timeout
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 504
error: LITE_SERVER_NETWORK timeout
422_block:
description: Invalid block query parameters.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 422
description: HTTP status code `422`.
error:
type: string
enum:
- workchain required
- shard required
- seqno required
- failed to parse workchain
- failed to parse shard
- failed to parse root_hash
- failed to parse seqno
- seqno should be positive
- from_seqno should be non-negative
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 422
error: workchain required
securitySchemes:
APIKeyHeader:
type: apiKey
in: header
name: X-API-Key
description: >-
API key header of the form `X-API-Key: `, where `` is the
API key. Requests without a key are limited to 1 RPS. Refer to the
[authentication guide](/ecosystem/api/toncenter/v2-authentication) for
details.
APIKeyQuery:
type: apiKey
in: query
name: api_key
description: >-
API key query parameter of the form `?api_key=`, where ``
is the API key. Equivalent to the header method. Refer to the
[authentication guide](/ecosystem/api/toncenter/v2-authentication) for
details.
````