send tx to the builder

world-chain-builder/docs/pbh_tx_lifecycle.md

@@ -2,20 +2,20 @@
 
 The WorldChain Builder is a custom block builder for the OP Stack that provides Priority Blockspace for Humans (PBH). PBH enables verified World ID users to execute transactions with top of block priority, enabling a more frictionless user experience. This mechanism is designed to ensure that ordinary users aren’t unfairly disadvantaged by automated systems and greatly mitigates the impact of negative impacts of MEV. PBH also enables future flexibility, allowing for a separate EIP-1559-style fee market mechanism for verified transactions.
 
-The builder introduces a new EIP-2718 RLP encoded transaction envelope including the necessary data to verify the transaction was created by a valid World ID user. To get a deeper understanding of PBH, lets walk through the life cycle of a transaction. 
+The builder introduces a new [EIP-2718 RLP encoded transaction envelope](https://eips.ethereum.org/EIPS/eip-2718) including the necessary data to verify the transaction was created by a valid World ID user. To get a deeper understanding of PBH, lets walk through the life cycle of a transaction. 
 
 
 ## Creating a PBH transaction
 
-The contents of the PBH transaction envelope simply consists of an [Ethereum typed transaction ](https://eips.ethereum.org/EIPS/eip-2718) and optional semaphore proof, verifying the sender is verified World ID user. In order to create a PBH transaction envelope, first generate an [Ethereum transaction](https://ethereum.org/en/developers/docs/transactions/).
+The contents of the PBH transaction envelope simply consists of an [Ethereum typed transaction ](https://eips.ethereum.org/EIPS/eip-2718) and optional semaphore proof, ensuring that the sender is verified World ID user. In order to create a PBH transaction envelope, first generate an [Ethereum transaction](https://ethereum.org/en/developers/docs/transactions/).
 
 Next, [create a World ID proof](), **setting the `signal` to the transaction hash of the tx you are verifying**, and set the `externalNullifier` to the following schema `vv-mmyyyy-nn` where:
 
 - **Version Prefix (vv)**: Indicates the version of the external nullifier schema This should be set to `0`.
 - **Date (mmyyyy)**: Indicates the current month and year.
 - **PBH Nonce (nn)**: A `u16` value used to rate-limit PBH transactions. 
 
-Upon receiving the PBH transaction envelope, the World Chain Builder first validates the inner Ethereum transaction and then verifies the PBH payload. The builder enforces a transaction limit for each verified user that resets every month, tracked by the PBH nonce specified in the `externalNullifier`. The user creating the PBH envelope must track the nonces used, however nonces can be specified in any order. For example, a user could send a PBH transaction envelope with a PBH nonce of `16`, followed by a PBH nonce of `10` and so on. Transaction validation will be covered further in a later section. 
+Upon receiving the PBH transaction envelope, the World Chain Builder first validates the inner Ethereum transaction and then verifies the PBH payload. The builder enforces a transaction limit for each verified user that resets every month (eg. 50 txs per month), tracked by the PBH nonce specified in the `externalNullifier`. The user creating the PBH envelope must track which nonces they have used, however nonces can be specified in any order. For example, a user could send a PBH tx envelope with a PBH nonce of `16`, followed by a PBH nonce of `10` and so on. Additional transaction validation will be covered further in a later section. 
 
 Below is a quick look at the `PbhTxEnvelope` in its entirety.
 
@@ -24,7 +24,7 @@ PbhTxEnvelope = { Tx, PbhPayload }
 PbhPayload = { externalNullifier, nullifierHash, root, proof }
 ```
 - `Tx`: Any valid Ethereum typed transaction.
-- `externalNullifier`: Unique identifier used to ensure the uniqueness and proper sequencing of PBH transactions formatted as: `vv-mmyyyy-nn`.
+- `externalNullifier`: String identifier used to ensure the uniqueness and proper sequencing of PBH transactions formatted as: `vv-mmyyyy-nn`.
 
 - `nullifierHash`: Hash of the identity nullifier and the external nullifier; used to prevent double-signaling. You can read more [about the nullifier and external nullifier here](https://docs.world.org/world-id/further-reading/protocol-internals#external-nullifier).
 
@@ -35,6 +35,16 @@ PbhPayload = { externalNullifier, nullifierHash, root, proof }
 
 ## Sending the transaction to the Builder
 
+Since the PBH tx envelope is a valid [EIP-2718 Typed Transaction Envelope](https://eips.ethereum.org/EIPS/eip-2718), it can be sent to the builder via the `eth_sendRawTransaction` endpoint, just like any other node that implements the Engine API. 
+
+```bash
+curl -X POST \
+     -H "Content-Type: application/json" \
+     -d "{\"jsonrpc\":\"2.0\",\"method\":\"eth_sendRawTransaction\",\"params\":[\"$PBH_TX_BYTES\"],\"id\":480}" \
+     $BUILDER_ENDPOINT
+```
+
+
 
 ## Transaction Validation
 // NOTE: PBH transactions are not gossiped or forwarded to the sequencer. All normal transactions are forwarded though