> For the complete documentation index, see [llms.txt](https://docs.blockpi.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockpi.io/build/api-reference/aptos/get-transaction-by-hash.md).

# Get transaction by hash

When given a transaction hash, the server first looks for the transaction in storage (on-chain, committed). If no on-chain transaction is found, it looks the transaction up by hash in the mempool (pending, not yet committed).

To create a transaction hash by yourself, do the following:

1. Hash message bytes: "RawTransaction" bytes + BCS bytes of Transaction.
2. Apply hash algorithm `SHA3-256` to the hash message bytes.
3. Hex-encode the hash bytes with `0x` prefix.

#### Path Parameters：：

**txn\_hash** string required

Hash of transaction to retrieve

#### **Response Header:**

**X-APTOS-BLOCK-HEIGHT** integer 

Current block height of the chain

**X-APTOS-CHAIN-ID** integer 

Chain ID of the current chain

**X-APTOS-EPOCH** integer 

Current epoch of the chain

**X-APTOS-LEDGER-OLDEST-VERSION** integer 

Oldest non-pruned ledger version of the chain

**X-APTOS-LEDGER-TIMESTAMPUSEC** integer 

Current timestamp of the chain

**X-APTOS-LEDGER-VERSION** integer 

Current ledger version of the chain

**X-APTOS-OLDEST-BLOCK-HEIGHT** integer 

Oldest non-pruned block height of the chain

#### **Response Body:**

object

**Type** string

**Hash**  string

**sender** string\<hex> required

A hex encoded 32 byte Aptos account address.

**sequence\_number** string\<uint64> required

A string containing a 64-bit unsigned integer.

**max\_gas\_amount** string\<uint64> required

A string containing a 64-bit unsigned integer.

**gas\_unit\_price** string\<uint64> required

A string containing a 64-bit unsigned integer.

**expiration\_timestamp\_secs** string\<uint64> required

A string containing a 64-bit unsigned integer.

**payload** object required

Payload which runs a single entry function, or

Payload which runs a script that can run multiple functions, or

An enum of the possible transaction payloads

**signature** object required

A single Ed25519 signature, or

A Ed25519 multi-sig signature, or

Multi agent signature for multi agent transactions

#### Example:

{% code overflow="wrap" %}

```json
// Request
curl -X GET -H 'Content-Type: application/json' https://aptos.blockpi.network/aptos/v1/your_api_key/v1/transactions/by_hash/0xe4cc358f3c1184cb1787b41fc52dfcfc25a2609ada71b8aa6fc9b3e4428d9475


// Result
{
    "version": "36173264",
    "hash": "0xe4cc358f3c1184cb1787b41fc52dfcfc25a2609ada71b8aa6fc9b3e4428d9475",
    "state_change_hash": "0x733e205fd66281683722f1a9446aa18a66b67ad7cdb2b01c8f947eda91f20b16",
    "event_root_hash": "0x8aa679c968e4450352db938fad90be53fb8fc3b18c97cebc39b396bea173ae22",
    "state_checkpoint_hash": null,
    "gas_used": "994",
    "success": true,
    "vm_status": "Executed successfully",
    "accumulator_root_hash": "0x87aa62641c889446f6c20673354eefd2a568e6730f5e19fe12ad12fc33ac0e32",
    "changes": [
        {
            "address": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
            "state_key_hash": "0xb59d2fe490a2aaa6aa8907958508e7e9aab8a6ca0371466b0d58beabe9cdc15a",
            "data": {
                "type": "0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>",
                "data": {
                    "coin": {
                        "value": "600"
                    },
                    "deposit_events": {
                        "counter": "1",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "2"
                            }
                        }
                    },
                    "frozen": false,
                    "withdraw_events": {
                        "counter": "0",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "3"
                            }
                        }
                    }
                }
            },
            "type": "write_resource"
        },
        {
            "address": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
            "state_key_hash": "0x27900227132855a653e08f2e0d992df3362b0c099b58ce8992c1d9bf744e0984",
            "data": {
                "type": "0x1::coin::CoinStore<0x6de517a18f003625e7fba9b9dc29b310f2e3026bbeb1997b3ada9de1e3cec8d6::opc::OPC>",
                "data": {
                    "coin": {
                        "value": "0"
                    },
                    "deposit_events": {
                        "counter": "0",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "4"
                            }
                        }
                    },
                    "frozen": false,
                    "withdraw_events": {
                        "counter": "0",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "5"
                            }
                        }
                    }
                }
            },
            "type": "write_resource"
        },
        {
            "address": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
            "state_key_hash": "0x1a41b2d0196e13823ddf1eccc83624522dee831a483250394b838c57cb148fe5",
            "data": {
                "type": "0x1::account::Account",
                "data": {
                    "authentication_key": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                    "coin_register_events": {
                        "counter": "2",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "0"
                            }
                        }
                    },
                    "guid_creation_num": "6",
                    "key_rotation_events": {
                        "counter": "0",
                        "guid": {
                            "id": {
                                "addr": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
                                "creation_num": "1"
                            }
                        }
                    },
                    "rotation_capability_offer": {
                        "for": {
                            "vec": []
                        }
                    },
                    "sequence_number": "1",
                    "signer_capability_offer": {
                        "for": {
                            "vec": []
                        }
                    }
                }
            },
            "type": "write_resource"
        },
        {
            "state_key_hash": "0x6e4b28d40f98a106a65163530924c0dcb40c1349d3aa915d108b4d6cfc1ddb19",
            "handle": "0x1b854694ae746cdbd8d44186ca4929b2b337df21d1c74633be19b2710552fdca",
            "key": "0x0619dc29a0aac8fa146714058e8dd6d2d0f3bdf5f6331907bf91f3acd81e6935",
            "value": "0xf64ca977878065010000000000000000",
            "data": null,
            "type": "write_table_item"
        }
    ],
    "sender": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2",
    "sequence_number": "0",
    "max_gas_amount": "1000",
    "gas_unit_price": "100",
    "expiration_timestamp_secs": "1669084567",
    "payload": {
        "function": "0x6de517a18f003625e7fba9b9dc29b310f2e3026bbeb1997b3ada9de1e3cec8d6::opc::register",
        "type_arguments": [],
        "arguments": [],
        "type": "entry_function_payload"
    },
    "signature": {
        "public_key": "0x67bb99480a4b9aa7f83ba56570a6fe939b5a80286b1456cb0e52972f3af44698",
        "signature": "0x2b47a221992fba90f8a11efef9a1b6cd82c9a3a17cf684fb80419ba5deada52dc52e77d8b01c780141126ac319df4256db7521ed0cf1930a347e70de04f8cd0a",
        "type": "ed25519_signature"
    },
    "events": [
        {
            "guid": {
                "creation_number": "0",
                "account_address": "0x9e5cf6e900fecbb716eb64781d40a5b1db9652caa6b61c188184b28c41687db2"
            },
            "sequence_number": "1",
            "type": "0x1::account::CoinRegisterEvent",
            "data": {
                "type_info": {
                    "account_address": "0x6de517a18f003625e7fba9b9dc29b310f2e3026bbeb1997b3ada9de1e3cec8d6",
                    "module_name": "0x6f7063",
                    "struct_name": "0x4f5043"
                }
            }
        }
    ],
    "timestamp": "1669084548326324",
    "type": "user_transaction"
}
```

{% endcode %}


---

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