It's a little slippery IRL - blocks in bitcoin are mined and the mined blocks are representations of value - at least within the blockchain itself. You could argue that the blockchain itself does represent value. The value of the mined blocks now is 25btc since the reward was halved.
Blocks can't be made outside the process of mining and any btc you hold come from a block that's been mined.
How that's represented in fiat is another problem :)