Bitmark Wallet · BTM · in your browser

Load a mnemonic, see your balance, send BTM — signed locally; balance from your own node or an ElectrumX server. Legacy P2PKH (no SegWit). Make a wallet on the keys page. home

⚠ Real coin. BTM has real value. Your mnemonic is your wallet; it stays in this tab and vanishes on reload. Signing is local (keys never leave the tab).

1 · Load wallet

2 · Balance

Run the full node first so it has written its validated UTXO set — then "from my node" reads balance from your own node, no trusted index.

3 · Send

send to (Bitmark address, b…)

amount (sats · 1 BTM = 100,000,000)

fee (sats)

Derives m/44'/177'/0'/{0,1}/i (legacy P2PKH), scans your first 20 receiving + change addresses via ElectrumX, selects coins largest-first, signs each input with the LEGACY sighash (the engine's own verifyInput checks the tx before broadcast), and pushes it with blockchain.transaction.broadcast. Proven in test-keys.mjs / test-sign.mjs / test-sign-multi.mjs / test-electrum.mjs.