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<p><strong>New Hampshire has signed HB 639, a blockchain and self-custody bill that sets state-level rules around holding and using digital assets. The measure was included among the bills the governor's office confirmed signing into law.</strong></p><p>The signing is documented through New Hampshire's official legislative record, with the <a href="https://gc.nh.gov/bill_status/legacy/bs2016/billText.aspx?id=722&amp;sy=2025&amp;txtFormat=pdf&amp;v=current" rel="noopener noreferrer nofollow">full text of HB 639</a> available through the state's bill status system. The governor's office separately listed the enactment in its announcement that the <a href="https://www.governor.nh.gov/news/governor-signs-38-bills-law" rel="noopener noreferrer nofollow">governor signed a batch of bills into law</a>.</p><p>HB 639 is identified as a blockchain and self-custody measure, placing it within New Hampshire's ongoing work on digital-asset policy. For related coverage, see <a href="https://www.coinwy.com/crypto-billionaires-money-buys-you-a-vote/" rel="noopener noreferrer nofollow">Crypto Billionaires and Vote Buying: How Wealth Shapes Blockchain Power</a>.</p><h2 id="what-hb-639-says-about-blockchain-and-self-custody">What HB 639 Says About Blockchain and Self-Custody</h2><p>The substance of the law is set out in the bill text itself, which remains the authoritative source for what the measure does. Readers seeking the exact statutory language should consult the <a href="https://gc.nh.gov/bill_status/legacy/amendedbills.aspx?b=" rel="noopener noreferrer nofollow">state's bill records</a> rather than secondary summaries.</p><p>At its core, the bill addresses self-custody, the practice of an individual holding their own digital assets directly, using their own private keys, rather than relying on a third-party custodian or exchange to hold those assets on their behalf.</p><p>Because the verified record here is the legislative text and the state's signing announcement, this article limits its description of the measure to that framing and does not attribute additional provisions that the available record does not confirm.</p><h2 id="why-the-hb-639-signing-matters-now">Why the HB 639 Signing Matters Now</h2><p>For crypto users and self-custody advocates in New Hampshire, a signed statute addressing blockchain and self-custody adds a layer of legal clarity at the state level, defining how the practice is treated under state law.</p><p>The move fits a pattern of New Hampshire engaging directly with digital-asset questions, an arc that also included the state's <a href="https://www.coinwy.com/new-hampshire-100-million-bitcoin-bond-proposal-fails-final-vote/" rel="noopener noreferrer nofollow">$100 million bitcoin bond proposal that failed a final vote</a> and its subsequent decision to <a href="https://www.coinwy.com/new-hampshire-ends-bitcoin-municipal-bond-effort/" rel="noopener noreferrer nofollow">end the bitcoin municipal bond effort</a>.</p><p>Earlier in that same municipal-bond process, the plan had drawn a <a href="https://www.coinwy.com/new-hampshire-bitcoin-bond-moodys-ba2-rating/" rel="noopener noreferrer nofollow">Moody's Ba2 rating</a>, underscoring how far the state has gone in testing crypto-linked policy ideas. Against that backdrop, HB 639 represents a signed law rather than a stalled proposal.</p><p>Coverage of the signing framed it alongside New Hampshire's broader blockchain posture, <a href="https://decrypt.co/373424/new-hampshire-bitcoin-reserve-blockchain-basic-laws-signing" rel="noopener noreferrer nofollow">as reported by Decrypt</a>. The immediate significance is regulatory positioning: the state has moved a blockchain and self-custody bill from proposal to law.</p><p>The state's activity also sits within a wider wave of state-level crypto legislation, including efforts elsewhere such as <a href="https://www.coinwy.com/rhode-island-bitcoin-tax-exemption-bill/" rel="noopener noreferrer nofollow">Rhode Island's bill to eliminate taxes on small bitcoin transactions</a>. HB 639 is New Hampshire's contribution to that state-by-state policy landscape.</p><p>Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.</p><a href="https://www.coinwy.com/?p=19616" rel="noopener noreferrer nofollow">Read original article on coinwy.com</a><div class="coinwy-read-also"><strong class="coinwy-read-also-title">Read also :</strong><ul class="coinwy-read-also-list"><li class="coinwy-read-also-item"><a href="https://www.coinwy.com/bitcoin-quantum-recovery-tool-not-for-satoshis-1-1-million-coins/" class="coinwy-read-also-link" rel="noopener noreferrer nofollow">Bitcoin gets a quantum recovery tool, but not for Satoshi’s 1.1 million coins</a></li><li class="coinwy-read-also-item"><a href="https://www.coinwy.com/visa-stablecoin-platform-ousd/" class="coinwy-read-also-link" rel="noopener noreferrer nofollow">Visa Launches Stablecoin Platform With OUSD Support</a></li><li class="coinwy-read-also-item"><a href="https://www.coinwy.com/us-regulators-miss-genius-act-stablecoin-rules-deadline/" class="coinwy-read-also-link" rel="noopener noreferrer nofollow">US Regulators Miss GENIUS Act Stablecoin Rules Deadline</a></li><li class="coinwy-read-also-item"><a href="https://www.coinwy.com/bitcoin-japan-shares-fall-after-evo-fund-financing-agreement/" class="coinwy-read-also-link" rel="noopener noreferrer nofollow">Bitcoin Japan Shares Fall After EVO Fund Financing Agreement</a></li><li class="coinwy-read-also-item"><a href="https://www.coinwy.com/uniswap-governance-v4-protocol-fees/" class="coinwy-read-also-link" rel="noopener noreferrer nofollow">Uniswap Governance Moves Toward Activating v4 Protocol Fees</a></li></ul></div>

New Hampshire Signs HB 639 Blockchain and Self-Custody Bill

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