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@receipts:tx.from

Sender of a transaction, addressed by hash.

On-chain (@receipts:tx.from!): Reads the origin of the transaction being written (the ORIGIN opcode), and takes no arguments.

⚗️ Experimental — available at next.evmcrispr.com.

Returns: address

Syntax

Section titled “Syntax”
@receipts:tx.from(hash chain?)

Arguments

Section titled “Arguments”
NameTypeDescription
hashbytes32Transaction hash
[chain]chainChain to look on (default: current chain)

Examples

Section titled “Examples”
# Read the sender of a transaction
set $sender @receipts:tx.from(0x16df2e878e23ff261844fc9252f6c8bfcd4cb69f9f80895c6a2f01032b228e13)

On-chain face (@tx.from!)

Section titled “On-chain face (@tx.from!)”

With ! and no arguments the read happens on-chain at execution time: the origin (ORIGIN opcode) of the transaction being written, which is exactly the from field its receipt will seal. Gate a batch on who is executing it:

load receipts


assert @tx.from! == @me "someone else is executing this batch"

See Also

Section titled “See Also”