# Proof-of-Blob

*How to mint $BLOBZ with Proof-Of-Blob*

By [blobz-wtf.eth](https://paragraph.com/@blobz) · 2024-10-08

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In our [inaugural post](https://paragraph.xyz/@blobz/here-come-the-blobz) we explained some of the basics behind the $BLOBZ token and shared a bounty for being the first to mint them on Sepolia testnet. We're happy to announce that the bounty has been claimed! Congrats to the winner, [timmykwesi.eth](https://warpcast.com/timmykwesi.eth), who has [shared](https://warpcast.com/timmykwesi.eth/0x9379e229) some details on how he did it over Farcaster.

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Timmy🎩🐹⬆🕵️‍♂️ on Warpcast
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This was fun. I really need to get back to Solidity 😁. cc: @kenny This was the command I used: \`\`\` cast send --rpc-url $ETH\_RPC\_URL --private-key $PRIVATE\_KEY 0x0bb999B4CF842fE24446e9016800fd17cFFE59B2 "mint()" --gas-limit 100000 --blob --blob-gas-price 5000 --path $PATH\_TO\_BLOB\_DATA \`\`\` https://warpcast.com/blobz/0x503c94de

Farcaster

![](https://storage.googleapis.com/papyrus_images/cab7b2192dc5ff97ebb3cde7e8763ab1.png)

](https://warpcast.com/timmykwesi.eth/0x9379e229)

What was the trick to get this to work? The trick was to invoke the mint() function on the token contract using a "type 3", aka "blob", transaction. Simple right? Unfortunately you can't submit these kinds of transactions with ordinary wallet software. Blob transactions instead must currently be submitted using specialized tools. The most convenient tool we're aware of so far, and the one used to claim the bounty, is the '[cast](https://book.getfoundry.sh/cast/)' command line tool from Foundry. It's amazingly flexible, and provides just the right flags to get the job done provided you have enough Sepolia Eth to get the transaction to land. (Sepolia gas fees have been unfortunately high lately...)

Now that we've revealed to the world how straightforward it is to mint $BLOBZ tokens, we're going to gear up for mainnet. Remember from our earlier post that those who mint earliest will be able to mint the most because of a harmonically declining emissions curve. Furthermore, we expect blob transactions to become more costly over time, so not only will you mint fewer tokens the longer you wait, you'll have to pay more gas for doing so.  
  
"But ser", you may be thinking, "what if I am not a web3 wizard able to perform such magical incantations? How do I get me some $BLOBZ?" Don't sweat, this is just the start. Simpler and more convenient tools for generating tokens through Proof-of-Blob are coming.

$BLOBZ won't be available on exchanges at the start since there is no pre-generated supply, but as users accumulate the tokens, trading markets will develop organically.

Keep an close eye out for our next updates: the mainnet launch is imminent....

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*Originally published on [blobz-wtf.eth](https://paragraph.com/@blobz/proof-of-blob)*