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.

Path parameters

apiKeystringRequiredDefaults to docs-demo

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	curl -X POST https://bitcoin-mainnet.g.alchemy.com/v2/{apiKey} \
2	-H "Content-Type: application/json" \
3	-d '{
4	"jsonrpc": "2.0",
5	"method": "gettxoutproof",
6	"params": [
7	[
8	"546263a196ce5cf674d5002afc0231ab417c2e971fd4ed1735c7a4c63f44720b"
9	],
10	"000000000000000000013c7104486ef1aa53e8ac99b8a8ac02a113b58457ed8b"
11	],
12	"id": 1
13	}'

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