Proposal: PIP-145: Update BNB reference Block After BNB Hard Fork
Status: Proposed
Author(s): @BoweryKing
Type: Software Upgrade
Discussions-to: Governance - Paloma
Created: 06/30/2025
Simple Summary
On June 30, 2025, BNB chain executed a hard fork. As such, the reference hash for BNB chain changed and was not recoverable by the Paloma flock, halting all relays. This is a proposal to update the BNB chain referenceBlock
to a valid Block and Hash pair.
Abstract
On June 30, 2025, BNB chain executed a hard fork. As such, the reference hash for BNB chain changed and was not recoverable by the Paloma flock, halting all relays. Attempts by Paloma to recover the reference block hash failed. Paloma updates the referenceBlock
data of the target chains every 10,000 blocks. If the referenceBlock
data is incorrect for some reason. E.g. a chain reorg or fork of the target chain, the chain-infos
for that chain becomes unreliable and all pigeons become stuck resulting in
- message relays
- pigeon status updates
- reference block updates
no longer being processed.
This proposal updates the referenceBlock
to this block -hash pair
- Block Height:
52362072
- Hash:
0x44f493a15123548839c91b8f33fc51f0ca5635d9a4af0635593a098f3001d299
Motivation
Updating the referenceBlock
data in evm chains-infos
is required to restart relaying.
Technical Specification
Proposal Vote Command for CLI
palomad tx gov submit-proposal ./pip-145.json \
--gas auto \
--node=https://rpc-1.paloma.nodes.guru/ \
--chain-id tumbler \
--from <Your Paloma Address>
pip-145.json
{
"messages": [
{
"@type": "/palomachain.paloma.evm.MsgProposeNewReferenceBlockAttestation",
"metadata": {
"creator": "paloma10d07y265gmmuvt4z0w9aw880jnsr700jz87xyk",
"signers": ["paloma10d07y265gmmuvt4z0w9aw880jnsr700jz87xyk"]
},
"authority": "paloma10d07y265gmmuvt4z0w9aw880jnsr700jz87xyk",
"chain_reference_id": "bnb-main",
"blockHeight": "52362072",
"blockHash": "0x44f493a15123548839c91b8f33fc51f0ca5635d9a4af0635593a098f3001d299"
}
],
"metadata": "ipfs://QmQe525acBbVWHZ7JHFN5bXGWvxZjQC1tnjmLFWzb56XzQ",
"deposit": "1000000000ugrain",
"title": "PIP-145: Update BNB reference Block After BNB Hard Fork",
"summary": "PIP-145: Update BNB reference Block to a valid block and hash.",
"expedited": true
}
pip-145_metadata.json
{
"title": "PIP-145: Update BNB reference Block After BNB Hard Fork",
"authors": [
"birdlady"
],
"summary": "PIP-145: Update BNB reference Block After BNB Hard Fork",
"details": "PIP-145: Update BNB reference Block After BNB Hard Fork on June 30, 2025",
"proposal_forum_url": "https://forum.palomachain.com/c/governance/6",
"vote_option_context": "Vote YES to update the BNB reference block in evm chains-info"
}
How to Vote on Proposal 208 with CLI
palomad tx gov vote 208 yes \
--chain-id tumbler \
--from <Your Paloma Address> \
--node <Your node> \
-y
How to Vote on Proposal 208with Paloma LightNodes
# Mac & Linux
sh ~/Downloads/setup.sh vote-proposal 208 yes
# **Windows**
docker run --rm --pull=always -ti -v $env:USERPROFILE\\paloma-lightnode:/root/lightnode palomachain/lightnode-client:v2 vote-proposal 208 yes
Rationale
This vote fixes the reference hash for the new BNB chain after the hard fork on June 30, 2025. This vote is preventative to ensure that validators are able to relay.
About Paloma
Paloma wants to be the fastest relay chain in the world with the most decentralized network of validators that can attest to any transaction with the fastest possible execution. Paloma aims to make it easy for developers to control smart contracts on any Solana, Ethereum L1, L2, and L3 chain.
To learn more about Paloma, please visit https://palomachain.com
To follow the project on Github, please star the project GitHub - palomachain/paloma: The fast blockchain messenger protocol
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