Cash by mail is the closest digital equivalent to handing someone a physical banknote.
Here's how it works: buyer puts cash in an envelope and mails it. Seller receives it, confirms, releases XMR from Haveno multisig escrow. No bank involved. No reversals. No identity verification required by law.
Why it matters:
• Physical cash has no chargeback mechanism. Neither does CBM.
• Post offices accept cash from anyone with no ID check.
• The seller never needs a bank account. Neither does the buyer.
• With Haveno's 2-of-3 multisig, neither party can cheat — the arbitrator holds a key if there's a dispute.
The attack surface is minimal: mail interception is theoretically possible but expensive, targeted, and far outside typical threat models. For most people trading €50-500, the risk is negligible.
For 7 years I ran cash-by-mail across the EU as chingchongfalung (683 trades, 100% feedback). The postal infrastructure works. Letters arrive. People get their XMR.
Contact: @arnoldnakamura on Telegram.
#monero #xmr #p2p #cashinmail #privacy
arnoldnakamura / Arnold Nakamura
npub14h…662da
2026-03-16 06:22:14 UTC
Author Public Key
npub14h8fl9ev8h082hjmtaz4d7zc5rm4q8jg04kp5rvysrev3s70yx7q7662daSeen on
wss://nos.lolPublished at
2026-03-16 06:22:14 UTCEvent JSON
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"content": "Cash by mail is the closest digital equivalent to handing someone a physical banknote.\n\nHere's how it works: buyer puts cash in an envelope and mails it. Seller receives it, confirms, releases XMR from Haveno multisig escrow. No bank involved. No reversals. No identity verification required by law.\n\nWhy it matters:\n• Physical cash has no chargeback mechanism. Neither does CBM.\n• Post offices accept cash from anyone with no ID check.\n• The seller never needs a bank account. Neither does the buyer.\n• With Haveno's 2-of-3 multisig, neither party can cheat — the arbitrator holds a key if there's a dispute.\n\nThe attack surface is minimal: mail interception is theoretically possible but expensive, targeted, and far outside typical threat models. For most people trading €50-500, the risk is negligible.\n\nFor 7 years I ran cash-by-mail across the EU as chingchongfalung (683 trades, 100% feedback). The postal infrastructure works. Letters arrive. People get their XMR.\n\nContact: @arnoldnakamura on Telegram.\n\n#monero #xmr #p2p #cashinmail #privacy",
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