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.

POST /api/v2/getMasterchainBlockSignatures

Try it

Get masterchain block signatures

cURL

curl --request POST \
  --url https://toncenter.com/api/v2/getMasterchainBlockSignatures \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "seqno": "<string>"
}
'

200

{
  "ok": true,
  "result": {
    "@type": "blocks.blockSignatures",
    "id": {
      "@type": "ton.blockIdExt",
      "workchain": 123,
      "shard": "<string>",
      "seqno": 123,
      "root_hash": "<string>",
      "file_hash": "<string>"
    },
    "signatures": [
      {
        "@type": "blocks.signature",
        "node_id_short": "<string>",
        "signature": "<string>"
      }
    ]
  },
  "@extra": "<string>"
}

Authorizations

X-API-Key · string · header · required

Body

application/json

seqno · required

Block or wallet sequence number. For blocks, this is the block height. For wallets, increment this for each outgoing transaction.

Response

200

application/json

OK

Response containing validator signatures for a masterchain block.

ok · boolean · default: true · required

Indicates if the request succeeded. If false, check the error field for details.

result · object · required

The response data. Only present when ok is true.

Show child attributes

result. @type · enum<string> · default: blocks.blockSignatures · required

Object type identifier.

Available options: blocks.blockSignatures

result. id · object · required

Request ID. Pass any string and it will be echoed in the response.

Show child attributes

result.id. @type · enum<string> · default: ton.blockIdExt · required

Object type identifier.

Available options: ton.blockIdExt

result.id. workchain · integer · required

Workchain ID: -1 for masterchain, 0 for basechain. Most user transactions are on workchain 0.

result.id. shard · string · required

Shard identifier. A signed 64-bit integer. Masterchain uses -9223372036854775808.

result.id. seqno · integer · required

Block or wallet sequence number. For blocks, this is the block height. For wallets, increment this for each outgoing transaction.

result.id. root_hash · string · required

Merkle root hash of the block state tree. Used for cryptographic verification.

result.id. file_hash · string · required

Hash of the serialized block data. Together with root_hash, uniquely identifies a block.

result. signatures · object[] · required

Array of validator signatures.

Show child attributes

result.signatures. @type · enum<string> · default: blocks.signature · required

Object type identifier.

Available options: blocks.signature

result.signatures. node_id_short · string · required

Short identifier of the validator node.

result.signatures. signature · string · required

Validator signature in base64.

@extra · string

Optional request ID that you can pass in the request and receive back in the response. Useful for matching async responses.