Global variables holds blockchain values that are connected to the running native transaction.

How to use

The returned data are kept in bytes format for each call. That means that in order to use a variable there is a need to tell the FCT engine from what call and with what offset the value exist.

Block Number

0xFB0A000000000000000000000000000000000000 or 0xFB0A000000000000000000000000000000000000000000000000000000000000

Block Timestamp

0xFB0B000000000000000000000000000000000000 or 0xFB0B000000000000000000000000000000000000000000000000000000000000

Gas Price

0xFB0C000000000000000000000000000000000000 or 0xFB0C000000000000000000000000000000000000000000000000000000000000

FB stands for "Future Blockchain"

Miner Address


Activator Address


Funder Address


FA stands for "Future Address"

Block Hash

Hash of one of the recent 256 blocks. The number is the distance from the current block. The available range is: 0x00FF00000000000000000000000000000000000000 ... 0x00FF000000000000000000000000000000000000ff or 0xFF00000000000000000000000000000000000000000000000000000000000000 ... 0xFF000000000000000000000000000000000000000000000000000000000000ff

If current block is 10,400,100 "0xFB0D000....0002" holds the hash of block 10,400,097

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