TriportRPC
DashboardDocs

eth_getRootHash

Last updated:

`eth_getRootHash` is a legacy alias for [`bor_getRootHash`](./bor_getRootHash.md). It computes the Bor checkpoint **root hash** over an inclusive block range `(fromBlock, toBlock)`. That root hash is consumed by the Polygon PoS bridge to generate state-sync / withdrawal proofs between Polygon and its L1 settlement layer.

The functionality is a Polygon **Bor-consensus extension**, not part of the standard EVM `eth` namespace. Because of that, the method only ever responds on Bor-backed nodes. On standard Geth / Erigon backends — and on all of Triport's free read canals — it returns `-32601 (method not found)`. The spec marks this method `deprecated: true`.

**Use [`bor_getRootHash`](./bor_getRootHash.md) instead.** The migration is a one-line change: swap the method name from `eth_getRootHash` to `bor_getRootHash`. Parameters, result shape, range limits, required scope (`polygon_bor`), and tier are all identical.

Parameters

This method takes no parameters.

Returns

eth_getRootHash return value
FieldType
resultobject

Examples

curl https://<your-endpoint>/ \
  -X POST -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_getRootHash","params":[]}'
const res = await fetch("https://<your-endpoint>/", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "id": 1,
  "method": "eth_getRootHash",
  "params": [],
  "jsonrpc": "2.0"
}),
});
const data = await res.json();
import requests
resp = requests.post("https://<your-endpoint>/", json={"id":1,"method":"eth_getRootHash","params":[],"jsonrpc":"2.0"})
print(resp.json())

Usage

  1. Transport: HTTP (JSON-RPC).
  2. Networks: mainnet.
  3. Credit cost: 1 per call.

FAQ

What does eth_getRootHash do?
Legacy `eth`-namespace alias for the Polygon Bor root-hash call; **deprecated — use [`bor_getRootHash`](./bor_getRootHash.md) instead.**
How many credits does eth_getRootHash cost?
eth_getRootHash costs 1 credit(s) per call on Triport by default.
Is eth_getRootHash available over WebSocket?
eth_getRootHash is an HTTP JSON-RPC method.