OpenStamp

OpenStamp is a trading and issuance platform built on Bitcoin's STAMP protocol, offering an SRC-20 and Stamps marketplace, minting and deployment tools, a block explorer, a launchpad, and a market dedicated to small UTXOs. STAMP writes image and text data into unspendable Bitcoin UTXOs; unlike BRC-20, which stores data in the witness field, each inscription consumes block space, so listings require splitting coins into many small UTXOs, a task the platform automates with splitting and bulk-sweep tools. Through LeapX, the platform also connects STAMP assets with RGB++ and Nervos CKB.

Since 2024 OpenStamp has been discussed as a primary issuance venue for SRC-20, and in its early period it held more than 90 percent of trading in that standard. Its first launchpad project, BitDragon, completed 7,000 whitelist and 2,000 public allocations in February 2024 under a rule requiring at least 80 percent of a listing's supply to circulate immediately. An OS points system and the OG PASS track trading, minting and launchpad participation and convert into fee discounts and rebates. Liquidity in SRC-20 assets stays concentrated in a few names, and quoted depth depends on market makers continuously maintaining UTXO inventory.