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<title>meshbay.git/docs/per-node-identity-v1.md, branch main</title>
<subtitle>MeshBay — read-only public mirror</subtitle>
<id>https://git.meshbay.org/meshbay.git/atom?h=main</id>
<link rel='self' href='https://git.meshbay.org/meshbay.git/atom?h=main'/>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/'/>
<updated>2026-09-10T22:19:06Z</updated>
<entry>
<title>docs: remove the documents MESHBAY_DESIGN.md replaces</title>
<updated>2026-09-10T22:19:06Z</updated>
<author>
<name>Christophe Besson</name>
<email>cbesson@gmail.com</email>
</author>
<published>2026-09-10T22:19:06Z</published>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/commit/?id=f059cb118c556d1f0279350507f74b8a47d5a98a'/>
<id>urn:sha1:f059cb118c556d1f0279350507f74b8a47d5a98a</id>
<content type='text'>
Twenty-four files, about 17 000 lines: the two architecture drafts, the three
security reviews, eleven design notes, the roadmap, the decisions file, the v1–v4
archive, the deprecated user guide and the stale quickstart. Their content is in
MESHBAY_DESIGN.md, and git history holds the originals.

The reason to delete rather than keep bannered: a document that is superseded but
present still gets read, and a reader cannot always tell which of two accounts of
one mechanism is the live one. That was the argument for retiring the user guide
rather than repairing it, and it applies to the whole set.

What made this safe is the concordance. Roughly 290 comments and docstrings cite
these files by section — `musicbay.md §6`, `mediacenter.md §5.5`, `draft-v6 §2.11`
— and section 16 maps every one onto its replacement, so not a single comment
needs editing to stay followable. It now says plainly that the files are gone and
where to recover them, and it gained rows for the three reviews (their findings
are section 13), and for the two guides.

Four kept documents pointed into the set and were repointed first: `playlists.md`
(nine references — it is a live proposal and must not dangle), `WINDOWS-PORT.md`,
and CLAUDE.md's example. No dangling reference remains outside section 16.

Two files were dropped from the list after checking what they hold. `HTTPS.md` is
an operational runbook — Caddy, certificate renewal, DNS, troubleshooting — and
MESHBAY_DESIGN.md deliberately covers no operations, so nothing would replace it;
the versioned Caddyfile is the config, not the procedure. `cast-smart-tv.md` is
the plan for the unbuilt DLNA phase of a feature whose first two phases ship, and
section 11.4 summarises it in four lines rather than carrying the SSDP/UPnP work.

There is no user guide now, and section 0.1 says so rather than leaving a reader
to discover it.

Suites green: 2258 passed, 4 skipped.

Co-Authored-By: Claude Opus 5 &lt;noreply@anthropic.com&gt;
Claude-Session: https://claude.ai/code/session_01YVoHVCcfBqud6ZjG4db3y7
</content>
</entry>
<entry>
<title>docs: point the superseded drafts at the design document</title>
<updated>2026-09-10T16:45:03Z</updated>
<author>
<name>Christophe Besson</name>
<email>cbesson@gmail.com</email>
</author>
<published>2026-09-10T16:45:03Z</published>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/commit/?id=d82a0e7eec97844cd5eaf8aa49315146d5ed3d33'/>
<id>urn:sha1:d82a0e7eec97844cd5eaf8aa49315146d5ed3d33</id>
<content type='text'>
Twenty-three documents that MESHBAY_DESIGN.md absorbs gain a header saying so
and naming the sections their content went to. None is deleted: code comments,
tests and the documents themselves cite their sections and their labels, and
each records reasoning a synthesis compresses.

The header states the precedence, because two documents describing one system
will disagree eventually: where a draft disagrees with MESHBAY_DESIGN.md the
design document is right, and where either disagrees with the code the code is.

Seven status lines were corrected on the way through, all of them claiming less
than the truth. Videos, Music, Photos, partial-read hashing and account recovery
were headed "proposal, not implemented" months after they shipped; the desktop
client said "nothing here is implemented" with stages A through D running; draft
v6 still called itself the current specification.

Co-Authored-By: Claude Opus 5 &lt;noreply@anthropic.com&gt;
Claude-Session: https://claude.ai/code/session_01YVoHVCcfBqud6ZjG4db3y7
</content>
</entry>
<entry>
<title>feat!: identity keys per node — C4's blast radius drops to one operator</title>
<updated>2026-08-14T15:51:48Z</updated>
<author>
<name>Christophe Besson</name>
<email>cbesson@gmail.com</email>
</author>
<published>2026-08-14T15:51:48Z</published>
<link rel='alternate' type='text/html' href='https://git.meshbay.org/meshbay.git/commit/?id=f0984e86d9cb596a282ce6feb7cfc2f075b2794b'/>
<id>urn:sha1:f0984e86d9cb596a282ce6feb7cfc2f075b2794b</id>
<content type='text'>
One keypair was copied to every node its owner joined, so cracking the bundle on
any single node yielded the identity used on all of them: their content on other
operators' machines, and the ability to sign as them anywhere. That lateral reach
was the part of C4 worth attacking.

Each node now gets its own keypair, generated the first time its owner joins it
and left with that node alone. An operator who cracks what sits on their own disk
holds a key that is a stranger to every other node — and on their own node, one
that unlocks nothing they did not already hold: they serve the content, the index
and every byte of it by design.

Nothing changes for the user. A first contact with a node already needed that
operator's code, and the key is created in the same step; a second browser still
recovers it from the node with the passphrase alone. Two operators can also no
longer tell they host the same person by comparing keys.

BREAKING, and deliberately without a compatibility path — the deployment is wiped
for the next demo:

  - users.pk_ed25519 / pk_x25519 dropped (migration a7c31f9e40b2)
  - registration no longer sends or stores a key
  - PUT /v1/users/me/keys and regenerateKeys() gone; rotation is now
    `member unpin` plus a fresh code, decided on the machine that pinned it
  - /pubkeys returns an account id and a node's linking key. It was the directory
    H3 read, and nothing wraps for it any more
  - the pk_user JWT claim is gone

That last one closed a live defect the inventory turned up: the node recorded
pk_user as the uploader's identity and authorized deletion against it, so a hub
issuing a token naming its own key could delete anyone's uploads on any node.
Attribution now uses the key the node itself pinned.

A simplification falls out. Registration generates nothing, so a scripted signup
is a real account: `demo.py bootstrap` takes a wiped hub and node to a working
demo with no browser, which was impossible while keys were born in one.

Also fixes, found by running it on a wiped deployment: the key handed back on a
join now belongs to the group the connection is for, not the group named in the
invitation — an operator pairs node-wide but redeems the code while opening a
group, and expects to read it.

Tests: 343, including the two that state the property — a key pinned by one node
is refused at another, and someone else's code does not admit it. Verified end to
end against a wiped hub and node: bootstrap, pair, invite, join, download,
stream, second browser, revoke.

Design: docs/per-node-identity-v1.md

Co-Authored-By: Claude Opus 5 &lt;noreply@anthropic.com&gt;
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