2025-06-19T08:47:21Z https://njump.cloud.vinney.xyz salvatoshi https://njump.cloud.vinney.xyz/npub157y6gz0l0rfhw220rfwnujeff6q2mec33nzkwz23umkrt6482exq8e60gr https://pbs.twimg.com/profile_images/1362649835644604417/kJGX0vV9_400x400.jpg https://pbs.twimg.com/profile_images/1362649835644604417/kJGX0vV9_400x400.jpg https://njump.cloud.vinney.xyz/nevent1qqsw56q66swuenq9847cqaats7gtk06wphk59m2jn2k4g6efegf9srczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycr073rw In reply to <a href='/nevent1qqsyu7pf0unmmnsdqwhdetkjzahuxwap97kfcaey282l9dmr8pfxpwqpr9mhxue69uhkummn9ekx7mp0vd5hq6r9wgkh5atvw50nr5zm'>nevent1q…r5zm</a><br/>_________________________<br/><br/>Don&#39;t worry, it was just a silly joke on the term &#34;Data Availability Layer&#39; that is popular in blockchain research... Sorry to interject on a much more serious topic! <br/><br/> 2026-05-13T19:01:51Z https://njump.cloud.vinney.xyz/nevent1qqszxes37haq609u2vram6k5t3zs5aq6c5ktg2njqas47uy28vglseszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc8q6205 In reply to <a href='/nevent1qqsr23e0v8dzt9rv7s5ncpg6gldg0lrv6xrsj3yfmn0m0jugyg33p2qprpmhxue69uhkummn9ekx7mp0daekxctj944xzer9cwdclx'>nevent1q…dclx</a><br/>_________________________<br/><br/>Ah, the famous Data Availability Lawyer <br/><br/> 2026-05-13T15:58:57Z https://njump.cloud.vinney.xyz/nevent1qqsq5797gmsss7rjrmsjhprnd4ar24teka2jp56s7lpk7n4xj3c8dvszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyce3vegp <br/><br/><br/><br/> <img src="https://blossom.primal.net/e81859a1b3b6b0f73993b4bcad3e950607ea24531c8d7b318cb31de71beb639e.jpg"> 2025-12-19T22:46:48Z https://njump.cloud.vinney.xyz/nevent1qqsrupqufy999y99acusl24k3faqyh0926kna5de9mvglenj72dz08czyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc4rp08a It&#39;s CCV o&#39;clock!<br/><br/>I opened a draft PR to bitcoin-inquisition to activate OP_CHECKCONTRACTVERIFY (BIP-443).<br/><br/><a href="https://github.com/bitcoin-inquisition/bitcoin/pull/102">https://github.com/bitcoin-inquisition/bitcoin/pull/102</a><br/><br/>Please help by reviewing, if you can! <br/><br/><br/><br/> <img src="https://blossom.primal.net/4cdff7661c557842b39619d759ae51bf3b48c5aa5218fece20291a1dd6c2b5bd.jpg"> 2025-12-13T18:31:40Z https://njump.cloud.vinney.xyz/nevent1qqsdk4kuswq2e8u8cl3tjxjlcus4edkthrczekj5du58sq5d4fcdzkszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc5wuel4 In reply to <a href='/nevent1qqs2jkecfa423nc087gg4wg63v9952yskqvf3vz5kw68q50j2u46aysxvf0w6'>nevent1q…f0w6</a><br/>_________________________<br/><br/>Bitcoin doesn&#39;t work without entropy.<br/>But entropy implies information content.<br/><br/>It&#39;s from my <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqs0zqyq74avavecxlreqte2ugu5hc7q867qwg386pmeflmd00hdnhqgl4q0e" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>TABConf</span> (<span class="italic">nprofile…4q0e</span>)</a></span> 2024 talk &#34;Entropy, miniscript and hardware signers&#34;, exploring what entropy means for the UX of signing devices.<br/><br/>Full video here: <a href="https://youtu.be/IYOswKz5QAo">https://youtu.be/IYOswKz5QAo</a> <br/><br/> 2025-11-12T13:05:18Z https://njump.cloud.vinney.xyz/nevent1qqs2jkecfa423nc087gg4wg63v9952yskqvf3vz5kw68q50j2u46ayszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycyku2lf This slide summarizes the fundamental reason why forbidding data embeddings on-chain either:<br/>- fails miserably, or<br/>- destroys Bitcoin. <br/><br/><br/><br/> <img src="https://blossom.primal.net/9d5ccd3e0b3bcc7e14497316751caab68be45bf12a1219d74a71484823be0687.png"> 2025-11-12T13:04:14Z https://njump.cloud.vinney.xyz/nevent1qqsrrmk7wlwrmzuvddlulje4kfzzskqyar8cp9qskekxhcp3xtancmczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyczg2vcj I guess I&#39;ll start running v31 today <br/><br/><br/><br/> <img src="https://blossom.primal.net/358353b8c80384d76c20957c7d63c5d0c60a3904c3863cd2ec48bf8eee9534fb.png"> 2025-10-14T22:20:17Z https://njump.cloud.vinney.xyz/nevent1qqs0rsccgfln3avu0yhm0mzku795qhcu0jdcjgda09jez2eeqe3slhgzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc02dla4 Fiat money runs on Poof of Work.<br/><br/>You worked, you got paid... and poof, it&#39;s gone. <br/><br/> 2025-08-29T15:51:03Z https://njump.cloud.vinney.xyz/nevent1qqsguvyw8kn739npqpnjk45dv8ek85s7jufskrg8y67yupwnu9uzw6gzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycyn4rs5 Primal hands down had the most fun booth at BtcPrague<br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqsv4nlv930xxr2axfacyp9tpecw87xjne0mwlwy9w9aka9gze8vd3gpz4mhxue69uhkummnw3ezummcw3ezuer9wchsygzn9kpsmllqnsf7wh5tz3wgy4cclsftqqplv8tpayrhwgw8llunevpsgqqqqqqsstjm0c" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…jm0c</a></span> </div> Hang for sats! Earn 21 sats per second <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub167n5w6cj2wseqtmk26zllc7n28uv9c4vw28k2kht206vnghe5a7stgzu3r" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>BTCPrague</span> (<span class="italic">npub167n…zu3r</span>)</a></span> <br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://blossom.primal.net/1b3659b040cd310ff5da35440f568250ea7f0fa3e2061623e0f989d4f291b09c.mov"></video> </blockquote> 2025-06-22T12:39:52Z https://njump.cloud.vinney.xyz/nevent1qqs8r4ws8wwn6fge9n3fth2uqs0c3yctn9emuw9j6a064deeddns23gzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyct709qn Honored to sit right next to <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqsy2ga7trfetvd3j65m3jptqw9k39wtq2mg85xz2w542p5dhg06e5qpzdmhxue69uhhvct4d36zu6tjd9ejuar0w3mpq9" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Sirius</span> (<span class="italic">nprofile…mpq9</span>)</a></span> on the scoreboard! I&#39;ll try again tomorrow :) <br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqsy4ykx283dc3gd9fcnn5vv0kjadp8gjn00m23q9mpuhlxkz0dqyugpr9mhxue69uhhyetvv9ujuam9d3kx7unyv4ezumn9wspzq5edsvxllcyuz0n4azc5tjp9wx8uz2cqq0mp6c0fqamjr3llly7tqvzqqqqqqyesd44n" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…d44n</a></span> </div> BEAST MODE <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1g53mukxnjkcmr94fhryzkqutdz2ukq4ks0gvy5af25rgmwsl4ngq43drvk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Sirius</span> (<span class="italic">npub1g53…drvk</span>)</a></span> <br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://blossom.primal.net/44e6722b11c32eff0a384cd856f8bce3bd6480ec9bea42a3fa7ea58052905723.mov"></video> </blockquote> 2025-06-19T21:25:58Z https://njump.cloud.vinney.xyz/nevent1qqs0xaxe0sm74he4g97ukzkr6zzm8zz9d6uhj3rhat7xeexs0q8gudgzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc0r6lvc The Script Army Knife<br/><br/>OP_CHECKCONTRACTVERIFY<br/>OP_CAT<br/>OP_CHECKSIGFROMSTACK<br/>OP_AMOUNT<br/>OP_CHECKTEMPLATEVERIFY<br/><br/> <img src="https://image.nostr.build/05d0b8fae735c33d466a49d4f6c16d38b7e1b2571efb7b6e93cb4583f4b7b644.jpg"> <br/><br/>This is a minimal set of opcodes that can implement virtually any of the interesting constructions that I&#39;ve seen discussed and researched in the last few years.<br/><br/>In fact, I&#39;d challenge anyone to find a compelling construction that cannot be implemented with these opcodes.<br/><br/>The exception is of course some extremely complex operation that cannot fit in a block (or is impractically large) without a custom opcode. Examples are Snark verifiers, BLS signatures, quantum-resistant signatures, other advanced crypto, etc.).<br/><br/>However, for those advanced use cases, MATT fraud proofs (enabled by CCV+CAT) might be a viable substitute for many applications, allowing to get the benefits of those constructions on layer 2 without exposing layer 1 to cryptography that is considered too novel.<br/><br/>Each of these opcodes is simple, has at least a draft implementation, and they are all very composable with each other, and with any possible future Script updates. 2025-05-30T01:43:18Z https://njump.cloud.vinney.xyz/nevent1qqsx2fnwej84nvujlgp6shpdx38fw9uds3wcgm9wvml2gwy5uqrzaxszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycljnrfe What happens in Vegas,<br/>hopefully doesn&#39;t stay in Vegas.<br/><br/>See you on Thursday!<br/><br/> <img src="https://image.nostr.build/3c07e6c6c6cd7a5c347de6e92263e6362ec0cb1aee707d4f08a52dfa59b0ef2a.jpg"> 2025-05-28T05:42:18Z https://njump.cloud.vinney.xyz/nevent1qqsy0srqfw8fyx7ngvcz4g8wmx758lrm36eyslsqqlqmxyys55ze92czyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycpnrwsr EUR people wondering why is everyone talking about ATH<br/><br/> <img src="https://image.nostr.build/21be5df342906e6937fd475c8325e6b0c42cae3700c3c90d417cfbe39e62b6a4.gif"> 2025-05-22T09:38:44Z https://njump.cloud.vinney.xyz/nevent1qqs85amp2h2vg8mku25nvkr8l47ve9pv093d2s4xvu5asj62c9e9zmgzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrgmqyw My talk at <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqsphtcc46rrelvptfm4c2y58k85alnam0lfu773mgwdmtynka0zspspr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0gplf72" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>thebitcoinconf</span> (<span class="italic">nprofile…lf72</span>)</a></span> is Thursday 29th May 1:30pm in the Developer Zone.<br/><br/>Let&#39;s chat about useful opcodes.<br/> <img src="https://image.nostr.build/c632d7fe6e3bfaa98a95c0225b9333fdfb2868332673b03283315163d8509cfa.jpg"> 2025-05-21T14:38:08Z https://njump.cloud.vinney.xyz/nevent1qqs2vy3fp8n3pywsqh69l0r3hadcy50n88qacmvk96etwcp0mvtjdvszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc9chpse OP_CHECKCONTRACTVERIFY is BIP-443.<br/><br/>When I presented MATT at the first @btcazores<br/> in September 2022, it was just a concept: a minimal covenant with maximal power. While the covenant was straightforward, what a good implementation would look like was far from clear.<br/><br/>Then came James O&#39;Beirne&#39;s OP_VAULT proposal - a narrower, practical use case for a covenant. And yet, it resonated: the underlying need was the same as in MATT. Both required a way for coins to carry state (data) from input to output.<br/>If two very different problems point to the same technical tool, maybe that tool is a solid foundation.<br/><br/>CCV implements that foundation.<br/><br/>CCV is not made for vaults, but it enables them (alone, or supercharged with CHECKTEMPLATEVERIFY).<br/><br/>CCV is not &#34;MATT&#39;s opcode&#34;, but it&#39;s the main building block.<br/><br/>CCV is also what bridges like BitVMs are simulating with workarounds like Lamport Signatures: updating the state. It makes large part of their on-chain footprint redundant, and greatly simplifies their design.<br/>There&#39;s no more for cabooses, CatVMs, ColliderVMs. Script will finally have an expressive primitive for carrying state in UTXOs.<br/><br/>---<br/><br/>There is still a lot of work to do. The implementation needs to be reviewed and improved, ideally to be made ready for signet. More tooling needs to be developed. More work is necessary to assess what combinations of opcodes work best for a soft-fork.<br/><br/>CCV has no sponsors and no funding.<br/><br/>Can you help?<br/>Find me at <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqsphtcc46rrelvptfm4c2y58k85alnam0lfu773mgwdmtynka0zspspr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0gplf72" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>thebitcoinconf</span> (<span class="italic">nprofile…lf72</span>)</a></span> in Vegas and let&#39;s keep the ball rolling. 2025-05-09T21:42:28Z https://njump.cloud.vinney.xyz/nevent1qqst9fwsdg4f0wskwpqsqrztjfvymrfazrfk8ql4w49zp9jg4eztmeczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrlyh6k In reply to <a href='/nevent1qqsqayq6jy8gyq6js0tml56v8wsptfu599ev4yg5ulnpwss8q4p74rqyep2j3'>nevent1q…p2j3</a><br/>_________________________<br/><br/>Yes, of you provide a chain code yourself and it has enough entropy, then it works somewhat. But it&#39;s not better than a 2-of-2 between the device and the software wallet in terms of security model, and I think the latter is easier to analyze. 2025-05-02T21:47:11Z https://njump.cloud.vinney.xyz/nevent1qqsp3dqjq4cvxzstpv76pal2ekadtg5uus8u3g0a6mfjuc702e3qchczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc2zgpd7 In reply to <a href='/nevent1qqs8wqc6dxrm58q7e9u7rs7n23prpd5ghdz9q3k2qd0az3se3nmx6nqh4ysxc'>nevent1q…ysxc</a><br/>_________________________<br/><br/>I&#39;m gonna shill this blog post I wrote some time back: <a href="https://www.ledger.com/blog/towards-a-trustless-bitcoin-wallet-with-miniscript">https://www.ledger.com/blog/towards-a-trustless-bitcoin-wallet-with-miniscript</a><br/><br/>If you don&#39;t trust a signing device, it&#39;s really hard to meaningfully use it without additional devices - I don&#39;t think creative paths can help much. For example, a device could lie about the xpubs you ask. 2025-05-02T21:21:57Z https://njump.cloud.vinney.xyz/nevent1qqs8dutvnf7cer8t90waha0nxa3llkjmxjdx98pm42txactkggjljnczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycljtkmh In reply to <a href='/nevent1qqsgckr9d3s902pngpnc8r6dnesp9n8r9hrlkm09gm5je6sp6p9g4pgscqm5f'>nevent1q…qm5f</a><br/>_________________________<br/><br/>&gt; Just trying to think about how you can Guarantee that neither the manufacturer or yourself knows the private key<br/><br/>What for? I see footguns in this scheme, but I don&#39;t quite see the benefits.<br/><br/>In general, I think that both cosigners and blind signers are unlikely to make much much sense in multisig setups - much more useful in miniscript wallets, where you can do more &#39;experimental&#39; stuff with the primary spending path, while keeping recovery paths straightforward. 2025-05-02T20:33:15Z https://njump.cloud.vinney.xyz/nevent1qqspzm39jqrsdtvktzx6t500zk0au3kleutx9j0hcj9ssy3mdc5yhwqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycsn9zav In reply to <a href='/nevent1qqsgchlml3wqeggsr09fwg3y8cqu74cj72s7vuuqkulhcxpaa50h0vslwpece'>nevent1q…pece</a><br/>_________________________<br/><br/>The derivation paths doesn&#39;t really change anything in the meaning of the policy, so as long as it&#39;s a path you can export from your signer, everything will work.<br/><br/>(some devices might have path restrictions for xpubs they export, though - so using standard patterns maximizes compatibility)<br/><br/>What is your goal?<br/> 2025-05-02T19:57:18Z https://njump.cloud.vinney.xyz/nevent1qqsqvqw5fs2z8dk625xh8rhl7dka7xffqhw8cf8whmrtsl6akeej90szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycvu6ln5 In reply to <a href='/nevent1qqs8gg2qt32x87ykusanzen900jksev33rfmrtmkzy3wspu25sydwvcq3m38h'>nevent1q…m38h</a><br/>_________________________<br/><br/>YOU TAKE THAT BACK 2025-05-02T19:50:16Z https://njump.cloud.vinney.xyz/nevent1qqs8ft402hhazz0yk4chgwkjmnszqwua7zt7ddzjx29z6mqp3sjrdtszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycm9macx In reply to <a href='/nevent1qqsg3rt7wq78qwdsrll38elf785xzsmpl5jjgpdzx88gmzt2exg9vvqx8un6h'>nevent1q…un6h</a><br/>_________________________<br/><br/>Oh no, you merkelized. 2025-05-02T19:49:30Z https://njump.cloud.vinney.xyz/nevent1qqs9uwfz7vea6c3pe3tfc4ws29tshfhr2p2jjwkxlld2tu9jlad8pzszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycuv22zd In reply to <a href='/nevent1qqsygquf4ahem5ur48axgn29qqd7j3qfk53323p0fqhzn8ftcrgqt2ggsvmsn'>nevent1q…vmsn</a><br/>_________________________<br/><br/>How many hours long is the talk? 🤣 2025-05-02T17:39:36Z https://njump.cloud.vinney.xyz/nevent1qqsw72pm0yzf9ndxkslnpr4rwvluvdkkdz8sq2kt49kfsd35t3nswkqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc0felr0 In reply to <a href='/nevent1qqsdunt7g8lhqn8wq2f8s8lw4lcnmv3wurrwsxx68kcvkyyt4q7uh7sfj8w5h'>nevent1q…8w5h</a><br/>_________________________<br/><br/> <img src="https://image.nostr.build/03daacead0cd6d4bd1dad93cea8c1bf90d9aa50d54b0b2c03c8d7515cfbf2c6a.jpg"> 2025-05-02T10:01:02Z https://njump.cloud.vinney.xyz/nevent1qqstvuksu56xawsr0vc9asqzgawk4z0trvqznvcvnmajcnktsg04kjczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycmvpv7q I will be at <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqsphtcc46rrelvptfm4c2y58k85alnam0lfu773mgwdmtynka0zspspzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcd55m55" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>thebitcoinconf</span> (<span class="italic">nprofile…5m55</span>)</a></span> in Vegas with a session on `OP_CHECKCONTRACTVERIFY`.<br/><br/>What should I talk about? 2025-05-02T09:44:19Z https://njump.cloud.vinney.xyz/nevent1qqs2rk5dmcf8s54f4pdmexc6m0dn3hynq50rgmegrtdfp2eq9a92n8szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrwek87 Security/privacy ⇒ Entropy<br/>Entropy ⇒ Information content 2025-04-29T11:15:35Z https://njump.cloud.vinney.xyz/nevent1qqsf2tjzatw80qa7ne43erh8gza2qll3rsa45ha05ymedwpeqe7wnegzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycvyvhwa In reply to <a href='/nevent1qqsxzyqfmg9h9w9d4jcgqvkjx06s7kltf3e6crl29f4nr6ka6q2552gkzz4zr'>nevent1q…z4zr</a><br/>_________________________<br/><br/>There are two failure modes for the cosigner:<br/>- it stops signing. Then your primary spending path is frozen, but if you&#39;re in a liana-like setup, that&#39;s no big deal.<br/>- it signs things it shouldn&#39;t sign. Then you basically fall back to the security model you&#39;d have without the cosigner - for example a single-sig with you hardware wallet.<br/><br/>Unlike on-chain usage of moon math like ZKPs (roll ups, bridges, etc.), where failure is catastrophic, here you&#39;d just fallback to a weaker security model.<br/><br/>Also, I think the fact that all the complexity can be handled in the software wallets (without needing any new features from hardware signers) makes it a lot more likely to happen. It&#39;s not easy to build, but once built, it&#39;s basically a library that can be used as a black box by software wallets. Bullish! 2025-04-26T14:31:44Z https://njump.cloud.vinney.xyz/nevent1qqspkly4pyhu35cste4953kvlncv80vc40uvm7kgjwcz7gwedclt0wszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc4nwtuw In reply to <a href='/nevent1qqsdyvy4pf2g5jqjlznajzz69ycam2l4208pc3je2g9x74zhjr99tesnah4uf'>nevent1q…h4uf</a><br/>_________________________<br/><br/>Yep, you can definitely have multiple invisible cosigners!<br/><br/>For example, one could be self-hosted if you have an always-online machine.<br/><br/>Of course, since MuSig2 is an AND of all the cosigners, having more increases the chance of at least one of them failing, so in practice I expect a single cosigner managed by a professional entity to be a very popular option. In that direction, an interesting thing to explore is: how private can this be? It should be possible to combine MuSig2 with Schnorr blind signing, so that the cosigner doesn&#39;t necessarily have to learn about your transactions, while still being able to check predicates in them (this paper does it for single-sig: <a href="https://eprint.iacr.org/2022/1676">https://eprint.iacr.org/2022/1676</a> but smarter people tell me it should be generalizable for MuSig/FROST). 2025-04-26T08:35:16Z https://njump.cloud.vinney.xyz/nevent1qqspqgwdewr9dg46hcy5ms607zhfkvdvrvgadhuj373j6gvsjnqxllszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycduj9ch &#34;MuSig2 is the cherry on top of the taproot cake&#34;<br/><br/>I&#39;m somewhat of a poet myself.<br/><br/>Read about Ledger Bitcoin app&#39;s support of MuSig2 in this blog post - written with the legend Yannick Seurin in person.<br/><br/> <img src="https://image.nostr.build/35b3c88b9fe426da75def37c5069fd1a34093aee7c621d8592fb44139b2b5991.jpg"> <br/><br/><a href="https://www.ledger.com/blog-musig2-ledger-bitcoin-app">https://www.ledger.com/blog-musig2-ledger-bitcoin-app</a> 2025-04-25T21:21:07Z https://njump.cloud.vinney.xyz/nevent1qqszdwml7wgkqznk5jux7t0tyq3ly7rnrj3w0we5vpcz90lwwq6wcnczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycz7423u In reply to <a href='/nevent1qqsy2zl6k4ruxprlcqefdr06z6qaud0ujxfcsxl6u4vyjfddg4uw66szs9h8d'>nevent1q…9h8d</a><br/>_________________________<br/><br/>Zaps are all custodial over here 🥲 2025-04-22T22:44:57Z https://njump.cloud.vinney.xyz/nevent1qqsq6rlytvdrklyjp03gwxg7qsy4lvz05l2euwkz5kcmxgdg7nt6wkqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycvp5pfy In reply to <a href='/nevent1qqsrcnwgrkx2yr06d2mncyfh3dptt0nhc0gqz2yv928hszszrvxxdtqpx7qu6'>nevent1q…7qu6</a><br/>_________________________<br/><br/>Then the evil bitcoin-core developers removed it to keep all the coins for themselves 🤬 2025-04-17T13:36:13Z https://njump.cloud.vinney.xyz/nevent1qqszv5fnafzd35nyn44ceeha725gk67dkmrvs7aepe0w543qx9jgcyszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyct0djuq If you use any wallet that is not single-signature (multisig, miniscript, etc.), it is important to have a backup of the descriptor/wallet policy.<br/>But we have no standard on how to do it.<br/><br/>How should we do it? Here&#39;s my attempt at an ideal approach: <a href="https://delvingbitcoin.org/t/a-simple-backup-scheme-for-wallet-accounts/1607">https://delvingbitcoin.org/t/a-simple-backup-scheme-for-wallet-accounts/1607</a><br/><br/>The approach I propose tries to achieve a number of desirable properties:<br/><br/>- Encrypted: so you can outsource its storage;<br/>- Easy to implement: really, it&#39;s very simple;<br/>- Vendor-independent: it should work with any signing device;<br/>- Deterministic: the backup should be repeatable.<br/><br/>In the post, I try to give motivation on the approach, and come with a scheme that tries to be pragmatic, and easy to adopt.<br/>Of course, variations, more features, etc. are possible, but I believe this scheme is good for the use cases of the typical user.<br/><br/>And certainly, good enough is better than the status quo where most wallets just tell the user &#34;you should have a backup&#34; 🙃<br/>What do you think? 2025-04-16T13:02:23Z https://njump.cloud.vinney.xyz/nevent1qqsvuk9j20vnr0y9t94d0vq308jczrk9xyasd6pmgcj82n0h98vfl3qzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycfemtjw In reply to <a href='/nevent1qqswee27q3kjhaaa5qjf8xdg56lse0tutagj6eyp7xd73wmxu2u6regkl6k7j'>nevent1q…6k7j</a><br/>_________________________<br/><br/>Atomize All The Things! 2025-04-15T20:47:26Z https://njump.cloud.vinney.xyz/nevent1qqs9ygv5pj5dfmrxkyl3fgs3tjuaa9dm2xlwsvlap6xw5pw8xtmfcpqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrujp6y Not sure why people think Merkle trees are hard.<br/><br/> <img src="https://image.nostr.build/a66983a8c1ae9406c2686d4332cb7ba2ed13d592d4eaa9419017f66f6d97bf38.jpg"> 2025-04-15T20:23:48Z https://njump.cloud.vinney.xyz/nevent1qqswecz9capn5zvemdrsfxeqavmzwsags3d92xgup5vweqxqll7kjaczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycgyye5t New polymarket just dropped <img src="https://image.nostr.build/9ea77f2567d8e50f8a7a98f7f76e32b48e0e5a684ee66a91eb6b154a08020522.jpg"> 2025-04-13T18:49:06Z https://njump.cloud.vinney.xyz/nevent1qqs2w4394tatuk7c7rzx5rmxm0t2ufk55h6c2s7v2u8znfcssjc2v3gzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc9fm6ee When Ruben Somsen writes a gist, you know it&#39;s going to be good:<br/><br/><a href="https://gist.github.com/RubenSomsen/a61a37d14182ccd78760e477c78133cd">https://gist.github.com/RubenSomsen/a61a37d14182ccd78760e477c78133cd</a><br/><br/>On improving IBD time. 2025-04-09T13:52:21Z https://njump.cloud.vinney.xyz/nevent1qqspcz7lkacz807d699tym8s9vszfzepcpfntnqewfudsr8h62lzxkszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc782e98 What would be needed in order to make zaps work with bolt12-supporting wallets like Phoenix?<br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqsgg95lxf756pwt5tan8d7tgf05vp0m4rnu7rqgtk0cv4g6086td3qpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsygqdj7l2u4nlemyuv460r3h0vynw495afxfvxxvw28q043fv2f62zspsgqqqqqqs7g66tv" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…66tv</a></span> </div> Phoenix has bolt 12, we need to make zaps work for it. </blockquote> 2025-04-04T20:00:43Z https://njump.cloud.vinney.xyz/nevent1qqsgp6wur4plp5dae8w395lcvzn0ucd479jqsw6kpypaz7s2wwtlfcqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycqds08v In reply to <a href='/nevent1qqsyam0rxkantjs3hk44z2p8rdk7rfryxsf08tewd4y9eshc4ztae5ghaflgs'>nevent1q…flgs</a><br/>_________________________<br/><br/>I have Phoenix wallet in the phone, and an <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qqsw5t3us9xs3gmclzjm37hvk2yy6pv9t96utjjttsj794hexc5x79qpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhs4njjxr" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>umbrel</span> (<span class="italic">nprofile…jjxr</span>)</a></span> node at home - it feels like this should be a solvable problem! 2025-04-03T10:33:22Z https://njump.cloud.vinney.xyz/nevent1qqsfm5ue6eagrlxa28j8x8zcc2var9qtv5euvcyetzq676saykdqyzqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyctzllv9 In reply to <a href='/nevent1qqswkfgvval3gt7xajq3ktum7s33znj3klgu8mtwxy4wrjmz9afkmdcvaayve'>nevent1q…ayve</a><br/>_________________________<br/><br/>I shall not be zappable until I figure how to do it self-custodially, but I&#39;ve been lazy 😅 2025-04-03T09:26:57Z https://njump.cloud.vinney.xyz/nevent1qqsr32lqdpsvze3nya0mesvujxjxh8rp4czlqy7st0ks08q9cw08m5czyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycmcuzkq Self-custody can&#39;t be evil.<br/><br/>Minimize evil in bitcoin by holding the keys.<br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqsqc4lm857p4ercd58khthuxcslg63qrwv4jla6487suwj50s6d30spzpmhxue69uhkummnw3ezumt0d5hsyg983xjqnlmc6dmjjnc6t5lyk22wszk7wyvvc4nsj50xas674f6kfspsgqqqqqqsdetq2d" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…tq2d</a></span> </div> "Don't be evil", as Google taught us, is not a viable long-term strategy for businesses working with content.<br/><br/>"Can't be evil" is the way. </blockquote> 2025-04-03T08:40:14Z https://njump.cloud.vinney.xyz/nevent1qqsqc4lm857p4ercd58khthuxcslg63qrwv4jla6487suwj50s6d30szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycyljll2 &#34;Don&#39;t be evil&#34;, as Google taught us, is not a viable long-term strategy for businesses working with content.<br/><br/>&#34;Can&#39;t be evil&#34; is the way. 2025-04-03T08:29:45Z https://njump.cloud.vinney.xyz/nevent1qqs2j7r59jmwej2vp95yel3ltg9n07c3u84urxl8rcl9g7ngp3j95vszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycfxx5nn In reply to <a href='/nevent1qqsyx3jx2ptqdg4570aa7kdlknsen9gdrge76an2zgda45ke96geu3szswrad'>nevent1q…wrad</a><br/>_________________________<br/><br/>BIP draft: <a href="https://github.com/bitcoin/bips/pull/1793">https://github.com/bitcoin/bips/pull/1793</a><br/>implementation: <a href="https://github.com/bitcoin/bitcoin/pull/32080">https://github.com/bitcoin/bitcoin/pull/32080</a><br/><br/>Please review! 2025-04-01T12:30:31Z https://njump.cloud.vinney.xyz/nevent1qqsyx3jx2ptqdg4570aa7kdlknsen9gdrge76an2zgda45ke96geu3szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrddgty Thanks to bitcoin-core developers for merging the next soft-fork!<br/> <img src="https://image.nostr.build/4deda64c5562b44991dec2185c224e114259a6f010bb6a7f7ee482c5916b7558.jpg"> <br/>Merkle trees can&#39;t be stopped. 2025-04-01T12:29:58Z https://njump.cloud.vinney.xyz/nevent1qqsvkypze4hu0u0lu6yld5hc2zr3v7nl7gyux9rhkrm3sfcp32wvp2gzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycrrdhpk In reply to <a href='/nevent1qqsrj7mepdwx5sastufgj4e90zrmvznfgnhdrl0lqqk0wj83fhldxwgm6vzgw'>nevent1q…vzgw</a><br/>_________________________<br/><br/>Anything you&#39;d like to build? 2025-03-28T16:52:20Z https://njump.cloud.vinney.xyz/nevent1qqs0rdq0sjytfpkdx9serfv8ac22gskdpzmgkaqqynyu5kz4wlkhpggzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycgqr7d9 What should a nostr app for signing devices be able to do? I need requirements - writing it is easy.<br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqsdnv6t4eqr7qr4nt7hgve3c05524tq0p04vmqtyylgm93630zcrycpz4mhxue69uhkummnw3ezummcw3ezuer9wchsyg983xjqnlmc6dmjjnc6t5lyk22wszk7wyvvc4nsj50xas674f6kfspsgqqqqqqs9dq2nz" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…q2nz</a></span> </div> Writing apps for hardware signing devices is about to get this easy<br/><br/>```<br/>#![cfg_attr(target_arch = "riscv32", no_std, no_main)]<br/><br/>extern crate alloc;<br/>use alloc::vec::Vec;<br/><br/>sdk::bootstrap!();<br/><br/>fn process_message(_app: &mut sdk::App, msg: &[u8]) -> Vec<u8> {<br/> msg.to_vec()<br/>}<br/><br/>pub fn main() {<br/> sdk::App::new(process_message).run();<br/>}<br/>```<br/><br/> </blockquote> 2025-03-28T11:03:48Z https://njump.cloud.vinney.xyz/nevent1qqsdnv6t4eqr7qr4nt7hgve3c05524tq0p04vmqtyylgm93630zcryczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyccnl5pr Writing apps for hardware signing devices is about to get this easy<br/><br/>```<br/>#![cfg_attr(target_arch = &#34;riscv32&#34;, no_std, no_main)]<br/><br/>extern crate alloc;<br/>use alloc::vec::Vec;<br/><br/>sdk::bootstrap!();<br/><br/>fn process_message(_app: &amp;mut sdk::App, msg: &amp;[u8]) -&gt; Vec&lt;u8&gt; {<br/> msg.to_vec()<br/>}<br/><br/>pub fn main() {<br/> sdk::App::new(process_message).run();<br/>}<br/>```<br/><br/> 2025-03-28T10:59:31Z https://njump.cloud.vinney.xyz/nevent1qqsdewa4uc05g36d5n43hwr0es0ve6uun7wtts8kldghj0tq47lewkgzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc7xjufy In reply to <a href='/nevent1qqs99xwz6j537kkd3z9pp8zp4vd0s3x9jjzdeh4g42dg8zh2s04vncstxvy4a'>nevent1q…vy4a</a><br/>_________________________<br/><br/>Past generators I tried struggled to understand binary trees. 2025-03-26T22:49:10Z https://njump.cloud.vinney.xyz/nevent1qqs99xwz6j537kkd3z9pp8zp4vd0s3x9jjzdeh4g42dg8zh2s04vncszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyck8msvv Fun <img src="https://image.nostr.build/6cac5d7f657772843e401d5e3f23f0ba10328152cf795a394c1816758611c0c7.jpg"> <img src="https://image.nostr.build/6cac5d7f657772843e401d5e3f23f0ba10328152cf795a394c1816758611c0c7.jpg"> 2025-03-26T22:47:49Z https://njump.cloud.vinney.xyz/nevent1qqswpnprfjj7duk8ps6pg2pnlljxq7j5s3pkrva7x2hx33mp0u7z40czyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc98qnkq Some updates on OP_CHECKCONTRACTVERIFY:<br/>- BIP draft: <a href="https://github.com/bitcoin/bips/pull/1793">https://github.com/bitcoin/bips/pull/1793</a><br/>- bitcoin-core concept implementation: <a href="https://github.com/bitcoin/bitcoin/pull/32080">https://github.com/bitcoin/bitcoin/pull/32080</a><br/>- Delving post: <a href="https://delvingbitcoin.org/t/op-checkcontractverify-and-its-amount-semantic/1527">https://delvingbitcoin.org/t/op-checkcontractverify-and-its-amount-semantic/1527</a><br/><br/>In the new post on delving, I delve into the amount logic of CCV, something that has somewhat evolved since the initial posts.<br/>I argue that while scriptPubKey checks are just equality checks this transaction-wide logic is preferable, and it&#39;s difficult to replicate it otherwise.<br/><br/>However, while the amount logic is not difficult, transaction-wide checks present some implementation challenges, because of multi-threaded Script validation in core.<br/>Solving this seems to be necessary for several possible soft forks (CCV, VAULT, TXHASH, CISA), but even just to implement batch validation for Schnorr signatures, which is an optimization available today.<br/>More details in the PR.<br/><br/>As usual, you&#39;ll find all the links at <a href="https://merkle.fun">https://merkle.fun</a>.<br/>I look forward to your comment and ideas. 2025-03-17T12:13:28Z https://njump.cloud.vinney.xyz/nevent1qqsrry554nqlsj7nqj7vpng6va0uxqcyeslxhxf66jcun758sjzlhuszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycz2hw52 In reply to <a href='/nevent1qqsd7468yn6rj0sg8ndnhc4zl008aepcvnhh7zq3kkanzkjfzpd332cn6agkg'>nevent1q…agkg</a><br/>_________________________<br/><br/>The end goal is to be able to use rust-bitcoin but &#39;hijack&#39; anything crypto.<br/><br/>In theory, you should be able to just patch the upstream crates doing crypto, but I think that would be much more work than just having my local forks of rust-bitcoin and rust-secp256k1<br/><br/>The con is that backporting updates will be painful every time. 2025-03-12T08:41:44Z https://njump.cloud.vinney.xyz/nevent1qqsqgfj04fwg4dpjpxs7qzw2z5vwp2gn6z7fhj24qwhjh5fv8gv4mpqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycjc4r3v In reply to <a href='/nevent1qqstwakg0m43f0ynzkv77a3r4wrusmzrsdnnp6x5hpqyrq55qrf9u2gw502v0'>nevent1q…02v0</a><br/>_________________________<br/><br/>Yup, and chopped off a bunch of features of secp256k1 I don&#39;t need<br/><br/><a href="https://github.com/LedgerHQ/vanadium/pull/77">https://github.com/LedgerHQ/vanadium/pull/77</a><br/><br/>Most implementations are still `todo!()`, but... it compiles! 2025-03-12T08:26:38Z https://njump.cloud.vinney.xyz/nevent1qqsf4amd0070clsdzhktenh6fyu7m2skyxdydvzd6pez5vskl3x8n2czyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycpk702u In reply to <a href='/nevent1qqsrm5kndwvzz3lezf8ruzt2dm3g6spmn7wm3c68u7gtd2kq3qarlvqkemyhz'>nevent1q…myhz</a><br/>_________________________<br/><br/>I ended up keeping secp256k1 - death to secp256k1_sys! 2025-03-11T23:02:03Z https://njump.cloud.vinney.xyz/nevent1qqsfp8symetj25mcf4wzkn782mgkhfksm2hmvlta2s85aludnmjc7ngzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycr4gur8 In reply to <a href='/nevent1qqs2n8yxy8qjvvcd5c5tvh2llj5nt3tttv9egld6ra6pajussdd9qjg2j97mm'>nevent1q…97mm</a><br/>_________________________<br/><br/>You mean to say 2013 wasn&#39;t a good time to sell your Bitcoin? 2025-03-11T11:45:50Z https://njump.cloud.vinney.xyz/nevent1qqs08q7y0p0vw0ya3xdtm2ksqhnj5hpynfk0f5knh47js8n5a79d79szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc6fjq8l In reply to <a href='/nevent1qqsz47a7dhqsy6ztdq9c005p3l9wkdzxydn68zp7y3fyglj8xk9jszg3khz0h'>nevent1q…hz0h</a><br/>_________________________<br/><br/>Oh, I will! But you might not like what I replace it with 🤣 2025-03-11T09:26:13Z https://njump.cloud.vinney.xyz/nevent1qqs9yk2f0r4n7x8t527lgj8er5lqumx6tq0h6k3ujxsaged02v7ffdqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycm3hvqg In reply to <a href='/nevent1qqsqf8f7zzj696yy9mpxrx42z9wlml8sxh0twzq90ltnhldgwwm87cqhm8qr0'>nevent1q…8qr0</a><br/>_________________________<br/><br/>I&#39;ll write my own Rust implementation with the same API. Doing the same C API is probably harder anyway 2025-03-10T12:23:00Z https://njump.cloud.vinney.xyz/nevent1qqsvuw8wkd8jufr5pt0jzs5hvltepkjmxk33v7cmlkl0k74usmvdpuszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc59j07x In reply to <a href='/nevent1qqs85jfsyppc2cdqq85vmnchyddm5ts5dh0jg85e2ny4496309nw5kc7htux9'>nevent1q…tux9</a><br/>_________________________<br/><br/>I promise, I have a good reason 😅 2025-03-10T11:01:25Z https://njump.cloud.vinney.xyz/nevent1qqs85jfsyppc2cdqq85vmnchyddm5ts5dh0jg85e2ny4496309nw5kczyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycv7p94j In reply to <a href='/nevent1qqsgkg933atqnqcf2962zcrlaqknvzw4e6vym0s4mtmnh7ck0exeujs06vdee'>nevent1q…vdee</a><br/>_________________________<br/><br/>How would I roll my own crypto otherwise, duh?? 2025-03-10T11:01:04Z https://njump.cloud.vinney.xyz/nevent1qqs06cesvuj0md0dlzpsuddr0z84r0q5pqhnpdu393w2c3tsp5jeakqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc2t606u GM, I&#39;m trying to compile rust-bitcoin without rust-secp256k1. How&#39;s your day? 2025-03-10T09:53:51Z https://njump.cloud.vinney.xyz/nevent1qqsqvd2ztwus4su4jws05njllm70a8tj6x9pnpzyep6tczr3red6qzqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyczgrzjq You can&#39;t prevent governments from buying bitcoin, but you should strive to make sure governments can&#39;t prevent you. 2025-03-08T19:32:33Z https://njump.cloud.vinney.xyz/nevent1qqsxpf43z6z3vae2jcm3xpmrxuvwk3ud9gwdxm3hv82yl7qg2vsentszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyce6299v In reply to <a href='/nevent1qqsgd0dzynxlfn85s6ucexz3zchlkzaekcueq2z39ywjqvnp6jx8p0spkp5jg'>nevent1q…p5jg</a><br/>_________________________<br/><br/>I&#39;m mostly interested in Bitcoin use cases, but: yes, you&#39;ll be able to build a signer for nostr :) 2025-01-14T13:30:42Z https://njump.cloud.vinney.xyz/nevent1qqsgd0dzynxlfn85s6ucexz3zchlkzaekcueq2z39ywjqvnp6jx8p0szyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc4hlfk7 I got various requests over time about supporting certain special Scripts in the Ledger bitcoin app.<br/><br/>It is a delicate topic to support signing arbitrary scripts, and it&#39;s not yet clear to me if there&#39;s a way that is both generic and secure enough to add to the Ledger bitcoin app. Doing it incorrectly might weaken the security model for existing Scripts.<br/><br/>It is not enough to have enough info in the PSBT to technically sign - the device needs to know what kind of checks needs to be performed on the transaction before signing.<br/><br/>BIP-388 defines a very generic class of Scripts that is still uniform enough to share the same signer&#39;s behavior (&#34;you spend from a well-defined account, and change must go back to the same account&#34;), and that&#39;s been the focus so far.<br/><br/>Unless a generalization is found that makes sense (and is compatible with BIP-388), custom signing behavior might be better served by separate apps, so that you can have clear signing, a UX that makes sense, and hardened checks for that use case.<br/><br/>I&#39;m working on a solution for that. Please reach out if you have the need for signing certain custom Scripts – it would help to know about your use cases! 2025-01-14T13:22:34Z https://njump.cloud.vinney.xyz/nevent1qqswytf6eg7ja92eucryr9yx84xpxvpcna3xcqzah0tdrzfgkrm02xszyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyctnp7x4 Happy year 45x45!<br/>Stay laser-focused, and let&#39;s make it the best year for Bitcoin, fair and square. 2024-12-31T23:52:47Z https://njump.cloud.vinney.xyz/nevent1qqsvnn36ltsv5243lrku4k5u2g2l9f8vj23rlqs9wl48yrnsw8vzuqqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atyc56r5e6 Merry Christmas to those who cerebrate — I hope you have some bright thoughts. 2024-12-24T23:56:39Z https://njump.cloud.vinney.xyz/nevent1qqsp8zeyjs9v9wrrv0cpm6w2jnxxpcnsfmfrj2xppl4rs72znzv5xmqzyzncnfqflaudxaeffud960jt998gpt08zxxv2ecf28nwcd025atycd60ysd My comments on the proposed opcodes in the &#34;Covenants support&#34; page:<br/><br/><a href="https://gist.github.com/bigspider/2b0892da45884d26eb7f4c9cb2395a7d">https://gist.github.com/bigspider/2b0892da45884d26eb7f4c9cb2395a7d</a><br/><br/>I think it&#39;s not very meaningful to &#34;support&#34; specific opcodes: most opcodes are not very good in isolation, but might be good in the right combination.<br/>A soft-fork can enable multiple opcodes, and it should be a coherent set of changes that does one or a few things well.<br/><br/>Therefore, I think it&#39;s more important to identify and discuss the &#34;primitives&#34; that the opcodes (and packages of opcodes) can enable.<br/><br/>I identify the following tentative list of primitives enabled (one way or another) by the various proposals:<br/><br/>- commitments to transactions<br/>- signing a message<br/>- vector commitments<br/>- concatenation<br/>- state-carrying UTXOs<br/>- multi-step transactions<br/>- generic introspection<br/><br/>I argue that if some opcodes poorly enable a valuable primitive, then other opcodes that implement that primitive _well_ should be enabled together.<br/>Otherwise, we&#39;re shooting ourselves in the foot with the bloat that will inevitably come.<br/><br/>I discuss my opinion on whether or not it might be dangerous to enable new primitives in Script.<br/><br/>Finally, I suggest a potential minimal package of opcodes that would enable _all_ the identified primitives pretty well, while each is fairly simple and self-contained:<br/><br/>- OP_CTV<br/>- OP_CAT<br/>- OP_CCV<br/>- OP_CSFS<br/>- OP_AMOUNT 2024-12-20T14:28:52Z