Robinhood Chain eth_sendRawTransaction

This section introduces the integration of eth_sendRawTransaction provided by BlockRazor Robinhood Chain Transaction Sending Mode

Robinhood Chain RPC is not currently available to the public. If you would like to integrate with it, please contact us.

eth_sendRawTransaction is a transaction sending interface provided by BlockRazor for Robinhood Chain. Users can use this method to send signed raw transactions to the chain with low latency. Currently, HTTPS protocol is supported.

What is Robinhood Chain

Robinhood Chain is a Ethereum Layer 2 built on Arbitrum, optimized for tokenized real-world assets including equities and ETFs, enabling 24/7 onchain trading and self-custody.

Robinhood Chain Website：https://robinhood.com/us/en/chain/

Robinhood Chain Stats：https://robinhoodchain.blockscout.com/stats

Benchmark

We deployed test clients across AWS regions in Frankfurt, Ohio, and Japan, and sent 50 pairs of transactions with identical nonces to both the corresponding regional BlockRazor endpoints and the official RPC endpoints. Within each transaction pair, all parameters were kept exactly the same except for the recipient address, which was used to distinguish between the two submission channels.

Performance was evaluated by comparing the ratio of transactions that were ultimately included through each channel. A higher on-chain inclusion rate indicates faster transaction propagation and execution performance. The benchmark results are shown below.

Region	BlockRazor Inclusion Rate	Robinhood Inclusion Rate
Frankfurt	88%	12%
Ohio	50%	50%
Japan	96%	4%

Request parameters

Parameters	Mandatory	Format	Example	Description
-	Mandatory	String	"0x…4b"	Signed raw transaction

Request Example

HTTPS

curl https://robinhood.blockrazor.io \
  -H 'content-type: application/json' \
  -H 'Authorization: Bearer <auth-token>' \
  --data '{
  "jsonrpc": "2.0",
  "id": "1",
  "method": "eth_sendRawTransaction",
  "params": ["0x…9c"]
}'

Response Example

{
 "jsonrpc":"2.0",
 "id":"1",
 "result":"0xa06b……f7e8ec"
}‍

{
  "jsonrpc":"2.0",
  "id":"1",
  "error":{
    "code":-32000,
    "message":"auth is invalid"
    }
}