Explore and build on the BSV Blockchain
A real-time blockchain explorer, and a token index that is paid for by the people who use it.
This is Token Topup, a prototype built in the WhatsOnChain visual language. It does what an explorer does, with one addition: its token contract pages are honest about what they cost.
Indexing a BSV-21 contract means walking every transfer it has ever had and checking supply conservation at each step. That is real compute on servers that bill monthly, whether or not anybody opens the page. Most explorers absorb that cost quietly until they cannot, and then the data goes stale without warning or the site disappears. The alternative is to say the price out loud: $0.10 a day per contract, paid by whoever cares, with the remaining time on every page.
Nothing is paywalled. Reading is free, expired contracts keep their last known balances, and a contract nobody funds still appears in the discovered tier. What funding buys is that the numbers stay current.
What is real here, and what is not
Worth being explicit, because a prototype that looks like a live explorer will eventually be read as one.
- Real: the token symbols, supplies, decimals, holder counts and deploy heights, taken from the BSV-21 index. The PEPE contract id and its top holders. Everything on the fun facts page. The WhatsOnChain palette, which was recovered from their own stylesheet and converted rather than eyeballed.
- Invented: every block hash, transaction id, address and identity key. All funding state, topups, contributors and trollbox messages, since the funding mechanism does not exist on chain yet. Peer addresses are documentation-range only, and no address here is checksum-valid, deliberately, so nothing on this site can be paid to by mistake.
- Fixed: the clock. Every relative time is measured from one instant, so this page reads identically today and next month.
Where things stand
Connect to the APIs
Blocks, transactions, address activity, on chain data and more over a plain REST API. Broadcasting is on the same interface.
Chain
- Introduction
- Rate limits
- Chain info
- Blocks
- Transaction
- Mempool
Addresses and scripts
- Address
- Script
- Exchange rate
- Search
- On chain data
Everything else
- Stats
- WebSockets (beta)
- Health
- Libraries
- Merchant API reference
Contact
This is a prototype, so there is no support channel behind it. The real explorer runs one on Telegram.
Telegram