> For the complete documentation index, see [llms.txt](https://docs.expand.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.expand.network/mapping/blockchains.md).

# Blockchains

Provides the mapping between expand.network terminology vs the respective chain terminology. 

**Request:**

<table><thead><tr><th width="172">expand.network</th><th width="164">Field Name</th><th width="167">Ethereum, BSC, Avalanche, Polygon, Cronos, Arbitrum, Fantom and Starknet</th><th width="163">Tron</th><th width="179">Solana</th><th width="140">Near</th><th width="118">Algorand       </th><th width="143">Aptos</th><th width="152">Sui</th></tr></thead><tbody><tr><td>Block Height</td><td>blockNumber</td><td>blockHeight/blockNumber</td><td>number</td><td>blockHeight</td><td>height</td><td>round</td><td>block</td><td>checkpointSequenceNumber</td></tr><tr><td>Hash</td><td>hash</td><td>hash</td><td>blockId</td><td>blockHash</td><td>hash</td><td>hash</td><td>blockHash</td><td>digest</td></tr><tr><td>Address</td><td>address</td><td>address</td><td>account</td><td>slotLeader</td><td>account_id</td><td>address</td><td>sender</td><td>address</td></tr></tbody></table>

**Response:**

<table><thead><tr><th width="180">expand.network</th><th width="164">Field Name</th><th width="167">Ethereum, BSC, Avalanche, Polygon, Cronos, Arbitrum, Fantom and Starknet</th><th width="163">Tron</th><th width="179">Solana</th><th width="140">Near</th><th width="118">Algorand       </th><th width="180">Aptos</th><th width="166">Sui</th></tr></thead><tbody><tr><td>Block</td><td>block</td><td>block</td><td>block</td><td>slot</td><td>block</td><td>block</td><td>block</td><td>checkpoint</td></tr><tr><td>Timestamp</td><td>timestamp</td><td>timestamp</td><td>time</td><td>blockTime</td><td>timestamp</td><td>timestamp</td><td>timestamp</td><td>timestampMs</td></tr><tr><td>Mined by</td><td>miner</td><td>miner</td><td>witness_address</td><td>proposer</td><td>approvals</td><td>Proposer</td><td>Proposer</td><td>N/A</td></tr><tr><td>Uncles Reward</td><td>uncles</td><td>unclesReward</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td></tr><tr><td>Difficulty</td><td>difficulty</td><td>difficulty</td><td>difficulty</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td></tr><tr><td>Total Difficulty</td><td>totalDifficulty</td><td>totalDifficulty</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td></tr><tr><td>Size</td><td>size</td><td>size</td><td>block_Size</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td></tr><tr><td>Transactions Root</td><td>transactionsRoot</td><td>transactionsRoot</td><td>txTrieRoot</td><td>N/A</td><td>tx_root</td><td>txnRoot</td><td>N/A</td><td>N/A</td></tr><tr><td>Gas Used</td><td>gasUsed</td><td>gasUsed</td><td>N/A</td><td>N/A</td><td>gasPrice</td><td>fee</td><td>gas_unit_price</td><td>epochRollingGasCostSummary</td></tr><tr><td>Gas Limit</td><td>gasLimit</td><td>gasLimit</td><td>N/A</td><td>N/A</td><td>N/A</td><td>N/A</td><td>max_gas_limit</td><td>N/A</td></tr><tr><td>Parent Hash</td><td>parentHash</td><td>parentHash</td><td>previousHash</td><td>previousBlockHash</td><td>previousHash</td><td>previousHash</td><td>N/A</td><td>previousDigest</td></tr><tr><td>Nonce</td><td>nonce</td><td>nonce</td><td>nonce</td><td>N/A</td><td>nonce</td><td>N/A</td><td>N/A</td><td>N/A</td></tr></tbody></table>