Every coin is a Bitcoin Rune.

Timechain is a pump.fun launchpad where every coin is also a real Bitcoin Rune. You launch a coin with a name, a ticker and a picture. It starts trading on pump.fun right away, paired with WBTC, so its price is quoted in Bitcoin. Right after launch the same coin is etched on Bitcoin as a Rune, and holders can move it 1:1 between Solana and their own Bitcoin wallet.

The name comes from Bitcoin itself. In the pre-release Bitcoin source code of 2008, Satoshi called the chain of blocks the timechain. Every Timechain coin leaves its mark there.

Runes went live at Bitcoin block 840,000, in April 2024, at the fourth halving. They are Bitcoin's own fungible tokens: its memecoins, written into Bitcoin transactions and secured by Bitcoin's own miners.

1. 1
   Connect a Solana walletPhantom, Solflare or Backpack. Keep some SOL in it for the launch quote.
2. 2
   Fill in the launch formName, ticker, picture, an optional description and links, and an optional first buy.
3. 3
   Read the quote and approveOne price in SOL covers pump.fun's coin creation, the launch's Solana gas and the Rune fee. One approval in your wallet.
4. 4
   Share the coin pageTrading starts on pump.fun at once. The coin page shows the Rune being etched, then its Rune ID and links once Bitcoin confirms it.
5. 5
   Take it to Bitcoin, if you likeHolders bridge to their own Taproot address in Xverse, UniSat or OKX, and back again.

Launches open when $TIMECHAIN is live. Until then you can explore the board, read these docs and get your wallets ready.

You never need a Bitcoin wallet to launch or trade. It only matters when you move a coin to Bitcoin or back.

Name and ticker

What people see on pump.fun, on Timechain and in the Rune's parent inscription. They are yours to choose; two coins may share a name.

Picture

Shown on the coin page and inscribed on Bitcoin in the Rune's parent inscription.

Description and links

Optional: a few lines, a website, X and Telegram.

First buy

Optional: buy your own coin in the launch transaction, before anyone else can.

The quote

Before you approve, Timechain shows one price in SOL. It covers everything your launch costs:

The launcher pays for their own launch. A quote is valid for a short time, because Bitcoin fees move; if it runs out, the form fetches a fresh one. If Bitcoin fees rise above what the quote paid for, the etch waits for fees to come back down rather than overspend.

The launch also locks the coin's fee split on chain in the same approval. See Fees.

Each coin trades on pump.fun's bonding curve with WBTC as its pair, so every price, chart and market cap is in Bitcoin terms. When the curve fills, the coin graduates to a pool the way every pump.fun coin does.

Trades pay pump.fun's own trading fee. A share of it, the coin's creator fee, goes to the coin's holders and to $TIMECHAIN. See Fees.

Right after launch, the coin is etched on Bitcoin as a Rune. The etching writes a Runestone (the Runes protocol's data) into a Bitcoin transaction, with a parent inscription that holds the coin's picture, its name and ticker, and its Solana mint address. That inscription is how a Bitcoin wallet or explorer knows which coin the Rune is.

Name

Assigned by Bitcoin: a reserved name, like a contract address, for example AAAAAAAAAAAAAAA•BDOZNDJIIIHD. There is no name race and no waiting for a name to unlock. The brand lives in the metadata, so two coins can share a name, as on Solana.

Symbol

One character, shown beside amounts in Bitcoin wallets.

Rune ID

The block and transaction of the etching, for example 972111:121.

Supply

Fixed at the etching and equal to the coin's supply on Solana. Nobody can mint more, on either chain.

Where it sits

The whole supply is etched straight into the coin's own custody address. See Custody.

Links

The coin page links the Rune and its inscription on ordinals.com, and the etching transaction on mempool.space.

The coin page follows the etching: being etched, etched, then final once Bitcoin has added enough confirmations on top.

Each coin's Runes sit at the coin's own Bitcoin Taproot address. That address belongs to a canister: a program running on the Internet Computer. The canister signs with a key that is split across the nodes of the network, using threshold signatures. The full key never exists in one place.

What the canister checks before it moves anything

• To Bitcoin: the tokens are locked in the bridge program on Solana, and Solana has finalized that lock.
• To Solana: the Runes arrived at your deposit address and Bitcoin has added enough confirmations, as counted by two independent Runes indexers that must agree.
• Every time: the coin's invariant still holds after the move (see The bridge), and the move fits the coin's daily cap.

Lock and release only

The bridge program on Solana can lock tokens and release locked tokens. It cannot create tokens.

One release per output

Each Bitcoin output can release tokens once. A deposit can never be counted twice.

Daily caps

Each coin has a daily cap on how much the bridge releases.

Only the canister releases

A release needs the canister's signature. Your deposit address is under the canister's key from the first block.

The bridge keeps one rule for every coin, which anyone can check:

The verify page runs its checks in your browser, straight against the chains:

It also shows the fee split each coin locked on Solana, so you can see where the coin's fees go.

Launching

The launcher pays their own launch: pump.fun's coin creation, the Solana gas and the Rune fee, in one SOL quote shown before approval.

Trading

pump.fun's own trading fee. Timechain adds nothing on top.

Bridging to Bitcoin

A SOL fee that covers the Bitcoin network fee of your payout, shown before approval.

The creator fee, split on chain

Part of pump.fun's trading fee is the coin's creator fee. At launch, pump.fun's fee sharing locks how it splits, on chain. Nobody can change that split afterwards, Timechain included.

The holders' share is collected into a wallet for each coin that a third-party key provider (Privy) holds, so our server holds no key to it. Every collection and payout is booked in a public ledger and can be matched to Solana transactions.

$TIMECHAIN is Timechain's own token. The platform's 20% share of every coin's creator fee buys $TIMECHAIN on the market and burns it, so more trading on any Timechain coin means more $TIMECHAIN burned.

Launches open when $TIMECHAIN is live. The token launches first, so the very first coin's fees already have something to buy.

Your wallet signs

Every launch, trade and bridge request is a transaction you sign in your own wallet. Timechain never asks for your keys.

No keys on the server

Our server holds no private key that can move users' coins, the Runes in custody or the tokens in the bridge.

Locked fee split

Each coin's creator fee split is locked in pump.fun's fee sharing at launch, with its admin removed. Nobody can change it.

The canister

Holds each coin's Runes at a Taproot address spent by a threshold key split across Internet Computer nodes. Key-path only: no backup key. It reads Solana and Bitcoin itself, with two Runes indexers that must agree, and checks the invariant before every move.

The bridge program

A Solana program that can only lock and release, never create tokens. Releases need the canister's signature, each Bitcoin output releases once, and each coin has a daily cap.

Upgrades

Changes to the canister and the bridge program go through a multisig behind a public time lock. The verify page links the canister's public source.

The page you load

A strict Content Security Policy: the site runs only its own scripts, from its own origin.

Found a problem? Write to us through the contact on the developers page.

The coin's Rune in /api/coin-page

coin.rune describes the coin's Rune. It is null or absent until the etching is recorded; treat that as "being etched on Bitcoin".

"rune": {
  "status": "etched",           // queued | etching | etched | final (enough confirmations; the bridge can open)
  "runeId": "972111:121",
  "runeName": "AAAAAAAAAAAAAAABDOZNDJIIIHD",
  "spacedName": "AAAAAAAAAAAAAAA•BDOZNDJIIIHD",
  "symbol": "¤",
  "etchTxid": "…",              // on mempool.space
  "inscriptionId": "…i0",       // the parent inscription, on ordinals.com
  "custody": "bc1p…",           // the coin's custody address
  "etchedAt": "2026-10-19T12:00:00Z",
  "onBitcoinRaw": "0",          // raw units bridged out to Bitcoin wallets
  "supplyRaw": "1000000000000000",
  "bridge": { "toBitcoin": false, "toSolana": false }
}

Building a terminal, screener or indexer? The developers page has the keyed API with paging and a live stream.

Timechain

Satoshi's own word for the blockchain, in the pre-release Bitcoin source of 2008. Also this launchpad.

Rune

A fungible token on Bitcoin under the Runes protocol, live since block 840,000.

Etching

The Bitcoin transaction that creates a Rune: its name, symbol and supply.

Runestone

The Runes protocol's data inside a Bitcoin transaction, which etches or moves Runes.

Parent inscription

An inscription linked to a Rune at its etching. On Timechain it holds the picture, name, ticker and Solana mint.

Taproot address

A modern Bitcoin address starting with bc1p. Runes are sent to Taproot addresses.

Sats

Satoshis, the smallest unit of Bitcoin: 100,000,000 sats make one bitcoin.

Confirmations

The number of Bitcoin blocks on top of a transaction's block.

Canister

A program on the Internet Computer. Timechain's canister signs for custody with a key split across the network's nodes.

WBTC

Wrapped Bitcoin on Solana. Timechain coins pair with it on pump.fun, so their prices are in Bitcoin.

Bonding curve

pump.fun's built-in market: the price rises as people buy, until the coin graduates to a pool.

Mint

A coin's address on Solana.