Inputs

Inputs in Bitcoin transactions reference unspent outputs from previous transactions, using them to fund new transfers. Each input must match or exceed the value being spent, with any excess allocated to change or fees. Inputs are consumed in a First-In-First-Out (FIFO) manner, helping track the flow of funds.

Sample Query

To find input utxos belonging to a specific address, do the following:

select 
    inputs.transaction_hash
    utxo_id 
from bitcoin.mempool_inputs 
INNER JOIN bitcoin.mempool_outputs 
ON outputs.utxo_id = inputs.spent_utxo_id
where inputs.block_timestamp >= current_timestamp - interval '1 hour' 
and inputs.block_timestamp < current_timestamp
and outputs.address0 = 'bc1qvj7sa83e7j9l9dz60vxuy5n4dmp2q8vhml6ftj'

Table Columns

This table is indexed on spent_utxo_id, block_number, block_timestamp, transaction_hash. Query for a specific row with any of these columns to see faster query results.

Column Name	Description	Example
transaction_hash	Transaction hash of input utxo	cda25c1ccefcc07bdde18b3ceb372e46bead3c1e2dba2284e5e598f6ef770179
block_hash	Block hash of the transaction input.	0000000000000000000373af917a0f20860073133a22a3bd3c4259d4349366d0
block_number	Block number or block height of the transaction input.	772,155
block_timestamp	Block timestamp of the transaction input.	2023-01-16 00:56:39
index	The index of the input.	202
spent_utxo_id	Spent UTXO ID generated from transaction hash and index.	b425e59215c510fdd6881660230046b640426ea60a3fb7eaeb3ddb7984f14c4e:194
spent_transaction_hash	The transaction where this input utxo was spent (as an output)	b425e59215c510fdd6881660230046b640426ea60a3fb7eaeb3ddb7984f14c4e
spent_output_index	Index of output from spent transaction.	194
script_asm	The script public key in the form of string,	00145814cbfd2ed36fba9cde2b29fc577e2242dd83af
script_hex	Hexadecimal representation of the bitcoin's script language op-codes.	1600145814cbfd2ed36fba9cde2b29fc577e2242dd83af
sequence	The sequence number of the script.	4,294,967,295
type	The addres type of intput	scripthash
input_id	Input ID generated from transaction hash and index.	cda25c1ccefcc07bdde18b3ceb372e46bead3c1e2dba2284e5e598f6ef770179:202