gettxoutproof | Alchemy Docs

Returns a hex-encoded proof that the specified transaction(s) were included in a block. This proof can be used to verify the inclusion of transactions without relying on a full node.

⚠ This endpoint is only available with Blast access.

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.

txidslist of stringsRequired

An array of transaction IDs to generate proof for.

blockhashstringOptionalformat: "^[a-fA-F0-9]{64}$"

The block in which to search for the txid(s). If omitted, the node will try to locate it.

Response

A hex-encoded proof that the specified transactions are part of a block.

1	import requests
2
3	url = "https://bitcoin-mainnet.alchemy-blast.com/v2/:apiKey"
4
5	payload = {
6	"0": ["546263a196ce5cf674d5002afc0231ab417c2e971fd4ed1735c7a4c63f44720b"],
7	"1": "000000000000000000013c7104486ef1aa53e8ac99b8a8ac02a113b58457ed8b"
8	}
9	headers = {"Content-Type": "application/json"}
10
11	response = requests.post(url, json=payload, headers=headers)
12
13	print(response.json())

1	{
2	"jsonrpc": "2.0",
3	"id": "1",
4	"result": "0080ce25cae416f1da89e4cd3b9f7674acfa3cc43e4d71e10aeb0000000000000000000029cc4a072d5cba23dd0e821d8d711f56124f19015b70abaf08ca4f2124a429fc3e23136..."
5	}