Unified Reorg

This event is triggered when a blockchain reorganization (reorg) occurs on a given chain. This can happen for several reasons, including:

• A different block replaces the latest block at the chain's height.
• Multiple blocks are produced simultaneously due to a bug or a malicious attack.

Supported Protocols

• base/mainnet
• base/sepolia
• bitcoin/mainnet
• bitcoin/testnet
• bitcoin/testnet4
• bitcoincash/mainnet
• bitcoincash/testnet
• bnb/mainnet
• bnb/testnet
• dogecoin/mainnet
• dogecoin/testnet
• ethereum/mainnet
• ethereum/sepolia
• ethereum/hoodi
• kaia/mainnet
• kaia/testnet
• litecoin/mainnet
• litecoin/testnet
• monad/mainnet
• monad/testnet
• polkadot/mainnet
• polkadot/westend
• polygon/mainnet
• polygon/amoy
• tron/mainnet
• tron/nile

Schema

{
  "data": {
    "block_number": "integer",
    "block_hash": "string",
    "block_timestamp": "integer"
  }
}

This schema applies to the UNIFIED_V1 and UNIFIED_V1_RAW templates. ALL_DATA returns the chain's native reorg payload unmodified, with its own fields, shown below per protocol.

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Info

Base, BNB Smart Chain, Ethereum, Kaia, Litecoin, Monad, Polygon, and Tron aren't shown in the picker below yet. They're supported for this event type, but a payload example hasn't been captured for them.

Examples

{
  "protocol": "bitcoin",
  "network": "mainnet",
  "event_type": "unified_reorg",
  "chain_id": "bip122:000000000019d6689c085ae165831e93",
  "data": {
    "block_hash": "0000000000000000000278b53131091627eaa00f772f3c7b2a59c374666520d7",
    "block_number": 831663,
    "block_timestamp": 1708679008
  }
}