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<title>BitBlocks — composable infrastructure for an internet you own</title>
<meta name="description" content="A stack of composable Nostr and Bitcoin building blocks: identity, policy, feeds, payments, and agent capabilities — for apps that can't lock anyone in.">
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      bitblocks
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      <a href="#blocks">the blocks</a>
      <a href="#compose">how they compose</a>
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      <a class="cta" href="https://tessera.bitblocks.network">Tessera →</a>
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<header class="hero">
  <div class="frame">
    <div class="lead">
      <p class="coord">composable nostr · bitcoin infrastructure</p>
      <h1 class="display">The web made you a tenant. <span class="own">Own</span> the stack.</h1>
      <p class="lede">BitBlocks is a set of composable building blocks for apps that can't lock anyone
        in — no platform that owns your state, no account to close, no algorithm you can't swap. Each block does
        one thing, signs everything, and runs on open relays.</p>
      <div class="actions">
        <a class="btn" href="#blocks">See the blocks</a>
        <a class="btn ghost" href="#compose">How they fit together</a>
      </div>
    </div>
    <div class="assembly" aria-label="The BitBlocks stack: four primitives and Tessera">
      <div class="stack">
        <a class="block-bar" style="--bc:var(--c-login)" href="https://login.bitblocks.network"><span class="swatch"></span><span class="bn">BitLogin</span><span class="bq">who are you</span></a>
        <a class="block-bar" style="--bc:var(--c-gate)" href="https://gate.bitblocks.network"><span class="swatch"></span><span class="bn">BitGate</span><span class="bq">what may you do</span></a>
        <a class="block-bar" style="--bc:var(--c-feed)" href="https://feed.bitblocks.network"><span class="swatch"></span><span class="bn">BitFeed</span><span class="bq">what do you see</span></a>
        <a class="block-bar" style="--bc:var(--c-unlock)" href="https://bitunlock.network"><span class="swatch"></span><span class="bn">BitUnlock</span><span class="bq">how you're paid</span></a>
        <a class="block-bar" style="--bc:var(--c-tessera)" href="https://tessera.bitblocks.network"><span class="swatch"></span><span class="bn">Tessera</span><span class="bq">what you can do</span></a>
      </div>
    </div>
  </div>
</header>

<section class="thesis">
  <div class="frame">
    <p class="coord">§ 01 — the premise</p>
    <p class="lead">Every platform you use owns the four things that matter: your name, your feed, your
      money, and your right to be there.</p>
    <div class="cols">
      <div>
        <span class="k">the tenant's web</span>
        <p>Your identity is a row in someone's database. Your feed is an algorithm you can't read.
          Your payments run through a processor that can freeze them. Your account can be closed,
          and everything you built inside it goes with it. You are renting.</p>
      </div>
      <div>
        <span class="k">the owner's web</span>
        <p>BitBlocks moves each of those to open ground: a key you hold, a feed recipe you write,
          money that settles cryptographically, and a presence no host can revoke. The apps become
          clients over public data — replaceable, forkable, unable to hold you hostage.</p>
      </div>
    </div>
  </div>
</section>

<section class="blocks" id="blocks">
  <div class="frame">
    <div class="section-head">
      <p class="coord" style="width:100%">§ 02 — the blocks</p>
      <h2 class="display">Four primitives.<br>One proof.</h2>
      <p>Four small, independent primitives — identity, policy, feeds, payments. Use one, or snap them
        together. Then Tessera proves they compose: a real application built from the four.</p>
    </div>
    <div class="block-list">
      <a class="block-row" style="--bc:var(--c-login)" href="https://login.bitblocks.network">
        <div class="id"><span class="sq"></span><div><div class="nm">BitLogin</div><div class="q">who are you</div></div></div>
        <p class="desc">A <b>portable Nostr identity</b> — a familiar username and password unlock a key
          that's yours, backed by public relays with an independent recovery phrase. No account server,
          no password-reset email, no database. Any app already written for a NIP-07 signer works
          unchanged.</p>
        <span class="go">login.bitblocks.network →</span>
      </a>
      <a class="block-row" style="--bc:var(--c-gate)" href="https://gate.bitblocks.network">
        <div class="id"><span class="sq"></span><div><div class="nm">BitGate</div><div class="q">what may you do</div></div></div>
        <p class="desc">A <b>policy engine</b> with four independent dimensions — rank, show, interact,
          transact. You supply the policy; it supplies precedence, composition, and a readable
          explanation of every decision. Moderation and access control without writing the machinery.</p>
        <span class="go">gate.bitblocks.network →</span>
      </a>
      <a class="block-row" style="--bc:var(--c-feed)" href="https://feed.bitblocks.network">
        <div class="id"><span class="sq"></span><div><div class="nm">BitFeed</div><div class="q">what do you see</div></div></div>
        <p class="desc">A <b>headless feed engine</b>. You write the algorithm as providers and a recipe;
          it sources, scores, mixes, orders, and explains — and contains no recommendation logic of its
          own. Swap the recipe, swap the feed. The algorithm is yours, and it's legible.</p>
        <span class="go">feed.bitblocks.network →</span>
      </a>
      <a class="block-row" style="--bc:var(--c-unlock)" href="https://bitunlock.network">
        <div class="id"><span class="sq"></span><div><div class="nm">BitUnlock</div><div class="q">how you're paid</div></div></div>
        <p class="desc"><b>Payment-verified delivery.</b> Every required Lightning leg settles before an
          encrypted payload is released — re-encrypted to the buyer's own key. Sell digital goods,
          access, and capabilities in bitcoin, with cryptographic proof instead of a payment processor.</p>
        <span class="go">bitunlock.network →</span>
      </a>
      <div class="tier-label">built with the four ↓</div>
      <a class="block-row" style="--bc:var(--c-tessera)" href="https://tessera.bitblocks.network">
        <div class="id"><span class="sq"></span><div><div class="nm">Tessera</div><div class="q">what you can do</div></div></div>
        <p class="desc">The <b>capability network for agents</b> — Agent Plugins published, curated, and
          installed over Nostr, by people and by the agents themselves. Every listing is a signed event;
          installs verify on your machine. Tessera is also the proof the stack composes: it's built from
          the other four.</p>
        <span class="go">tessera.bitblocks.network →</span>
      </a>
    </div>
  </div>
</section>

<section class="compose" id="compose">
  <div class="frame">
    <div class="section-head">
      <p class="coord" style="width:100%">§ 03 — how they compose</p>
      <h2 class="display">Four primitives.<br>One proof they compose.</h2>
      <p>Read it bottom to top: an open substrate, four primitives built on it, and applications
        assembled from those primitives. The client is the disposable part.</p>
    </div>
    <div class="arch" aria-label="BitBlocks architecture: an open substrate, four primitives, and applications built with them">
      <div class="tier">
        <span class="tk">built with the stack</span>
        <div class="tier-row n3">
          <a class="cell" style="--bc:var(--c-tessera)" href="https://tessera.bitblocks.network"><span class="sq"></span><b>Tessera</b><span>agent capabilities — the worked example</span></a>
          <div class="cell ghost"><span class="sq"></span><b>your app</b><span>assembled from the same four</span></div>
          <div class="cell ghost"><span class="sq"></span><b>what's next</b><span>a second, unlike application</span></div>
        </div>
      </div>
      <div class="tier-join">composed from ↓</div>
      <div class="tier">
        <span class="tk">four primitives</span>
        <div class="tier-row n4">
          <a class="cell" style="--bc:var(--c-login)" href="https://login.bitblocks.network"><span class="sq"></span><b>BitLogin</b><span>identity — who are you</span></a>
          <a class="cell" style="--bc:var(--c-gate)" href="https://gate.bitblocks.network"><span class="sq"></span><b>BitGate</b><span>policy — what may you do</span></a>
          <a class="cell" style="--bc:var(--c-feed)" href="https://feed.bitblocks.network"><span class="sq"></span><b>BitFeed</b><span>feeds — what do you see</span></a>
          <a class="cell" style="--bc:var(--c-unlock)" href="https://bitunlock.network"><span class="sq"></span><b>BitUnlock</b><span>payments — how you're paid</span></a>
        </div>
      </div>
      <div class="tier-join">built on ↓</div>
      <div class="tier">
        <span class="tk">open substrate</span>
        <div class="tier-row n2">
          <div class="cell"><span class="sq" style="background:var(--ink)"></span><b>Nostr</b><span>signed events · public relays</span></div>
          <div class="cell"><span class="sq" style="background:var(--c-unlock)"></span><b>Lightning</b><span>cryptographic payment</span></div>
        </div>
      </div>
    </div>
    <p class="note"><b>Tessera is the worked example.</b> It signs users in with BitLogin, moderates
      with BitGate's four dimensions, ranks its feed with BitFeed-shaped recipes, and gates paid
      plugins through BitUnlock — a real application assembled entirely from the four. Nothing about it
      is special-cased; it's just a client over public events. Prove the architecture and a second,
      unlike app should assemble from the same four the same way.</p>
  </div>
</section>

<section class="principles">
  <div class="frame">
    <div class="section-head">
      <p class="coord" style="width:100%">§ 04 — what holds it together</p>
      <h2 class="display">The shared foundation.</h2>
    </div>
    <div class="prin-grid">
      <div class="prin"><div class="n">01</div><h3>Signed by substrate</h3><p>Every action is a signed event. Provenance isn't a feature bolted on — it's the storage layer, verified on your device, not taken on a server's word.</p></div>
      <div class="prin"><div class="n">02</div><h3>No platform-owned source of truth</h3><p>State lives on open relays, not a platform database — any client can read it and no single operator controls it. Relay retention is best-effort, so keep your recovery export.</p></div>
      <div class="prin"><div class="n">03</div><h3>Own the algorithm</h3><p>The feed, the policy, the trust graph, the price — all of it is data you write and swap. No opaque ranking, no locked-in rules.</p></div>
      <div class="prin"><div class="n">04</div><h3>Static-first</h3><p>Each block embeds in a plain static site. The code that decides anything about you runs on your side, where you can read it.</p></div>
      <div class="prin"><div class="n">05</div><h3>Bitcoin-native money</h3><p>Value moves over Lightning and settles cryptographically. Payment is proof, not a promise from a processor that can reverse it.</p></div>
      <div class="prin"><div class="n">06</div><h3>No lock-in</h3><p>Vendor-neutral format and distribution: fork any client, self-host any service. The network is the events, not the front door.</p></div>
    </div>
  </div>
</section>

<section class="builders" id="build">
  <div class="frame">
    <div>
      <p class="coord" style="margin-bottom:18px">§ 05 — for builders</p>
      <h2 class="display">Assemble your own.</h2>
      <p>Every block is open and composable, with a dependency-free core and a static build. Start with
        the capability network — install its skill and let an agent search, publish, and install over
        Nostr — or embed a single block in a site you already have.</p>
      <div class="actions">
        <a class="btn" href="https://tessera.bitblocks.network">Explore Tessera</a>
        <a class="btn ghost" href="https://github.com/PR0M3TH3AN">Source on GitHub</a>
      </div>
    </div>
    <div class="term" aria-hidden="true">
      <div><span class="c"># install the capability network's own skill</span></div>
      <div><span class="g">$</span> tessera install tessera</div>
      <div style="height:10px"></div>
      <div><span class="c"># it verifies signature + hash on your machine</span></div>
      <div><span class="c"># — signed by substrate, not our word</span></div>
      <div style="height:10px"></div>
      <div><span class="g">$</span> tessera search "pdf ocr"</div>
      <div><span class="g">$</span> tessera inspect &lt;naddr&gt;<span class="c"> # trust report</span></div>
    </div>
  </div>
</section>

<footer>
  <div class="frame">
    <div class="fcol">
      <h4>the blocks</h4>
      <a href="https://login.bitblocks.network">BitLogin — identity</a>
      <a href="https://gate.bitblocks.network">BitGate — policy</a>
      <a href="https://feed.bitblocks.network">BitFeed — feeds</a>
      <a href="https://bitunlock.network">BitUnlock — payments</a>
      <a href="https://tessera.bitblocks.network">Tessera — capabilities</a>
    </div>
    <div class="fcol">
      <h4>build</h4>
      <a href="https://github.com/PR0M3TH3AN">GitHub</a>
      <a href="https://agent-plugins.org">Agent Plugins spec</a>
      <a href="#compose">How they compose</a>
    </div>
    <div class="fcol" style="align-self:flex-end;text-align:right">
      <span class="sign">bitblocks · an owner's internet</span>
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