Free Bitcoin address check

Is this address on the OFAC SDN sanctions list, or a known ransomware payment address? Exact list matches, free, no account. A limited number per hour. From Diamond, an independent Bitcoin node.

Go further with this address

Full risk check300 sats

Ownership clusters linked to sanctioned or ransomware entities, sweeper-bot addresses and laundering-pattern cases this node saw in the last 30 days.

Or pay screen@diamond.tail1b5f86.ts.net from your wallet with the address as the payment comment; the verdict arrives in your wallet.

Address watch1000 sats / 30 days

An alert for every confirmed transaction to or from the address for 30 days: a private web page, RSS and phone push.

Or pay watch@diamond.tail1b5f86.ts.net from your wallet with the address as the payment comment.

Check an address above to buy for it by QR, or pay by QR from any wallet.

Developers and AI agents: the same check per call at https://diamond.tail1b5f86.ts.net/api/ (Lightning L402 or USDC x402) and the MCP tool bitcoin_sanctions_screen.

Heuristics over public data, not legal or compliance advice.