diff --git a/docs-site/astro.config.mjs b/docs-site/astro.config.mjs
index 28a95b0e0..a7709af56 100644
--- a/docs-site/astro.config.mjs
+++ b/docs-site/astro.config.mjs
@@ -58,6 +58,7 @@ export default defineConfig({
             },
             { label: 'Cypher Query Language', slug: 'guide/cypher-guide' },
             { label: 'Graph Construction', slug: 'guide/graph-construction' },
+            { label: 'Move portable projects', slug: 'guide/portable-projects' },
             { label: 'Analytics Integration', slug: 'guide/analytics-integration' },
             { label: 'Visualization examples', slug: 'guide/visualization' },
             { label: 'Exploratory Analyst', slug: 'guide/exploratory-analyst' },
diff --git a/docs-site/scripts/sync-content.mjs b/docs-site/scripts/sync-content.mjs
index 89cff1759..99cc565cc 100755
--- a/docs-site/scripts/sync-content.mjs
+++ b/docs-site/scripts/sync-content.mjs
@@ -53,6 +53,7 @@ const PAGES = [
   'guide/tutorial.md',
   'guide/cypher-guide.md',
   'guide/graph-construction.md',
+  'guide/portable-projects.md',
   'guide/analytics-integration.md',
   'guide/visualization.md',
   'guide/exploratory-analyst.md',
diff --git a/docs/guide/overview.md b/docs/guide/overview.md
index e3f552ade..d2ec61a97 100644
--- a/docs/guide/overview.md
+++ b/docs/guide/overview.md
@@ -13,6 +13,7 @@ trees.
 | [Quick Start](quickstart.md) | First graph in five minutes |
 | [Tutorial](tutorial.md) | Step-by-step walkthrough |
 | [VS Code extension](vscode-extension/) | Explore projects, run Cypher, and pair with coding agents inside your editor |
+| [Move projects with portable project v2](portable-projects.md) | Verify and move immutable projects locally, air-gapped, or through OCI |
 
 ## Everyday workflows
 
@@ -31,6 +32,10 @@ Build graphs programmatically using the Python API.
 ### [Analytics Integration](analytics-integration.md)
 Export graphs to NetworkX, igraph, and pandas for further analysis.
 
+### [Move projects with portable project v2](portable-projects.md)
+Preview, export, verify, import, selectively share, and promote immutable project
+packages without copying live storage state or committing graph data to Git.
+
 ### [Visualization examples](visualization.md)
 Comparable Plotly, Jaal, PyVis, Cytoscape.js, and Sigma.js paths over one shared
 real-data GraphForge projection.
diff --git a/docs/guide/portable-projects.md b/docs/guide/portable-projects.md
new file mode 100644
index 000000000..aa2ce7236
--- /dev/null
+++ b/docs/guide/portable-projects.md
@@ -0,0 +1,155 @@
+# Move projects with portable project v2
+
+Portable project v2 is GraphForge's primary workflow for moving a project
+between workspaces, machines, and registries. It packages one immutable project
+generation with a canonical semantic identity. Use it for local copies,
+air-gapped transfer, selective sharing, and OCI promotion.
+
+> **Never copy, archive, synchronize, or publish a live `.graphforge/`
+> directory.** It contains generation pointers, journals, locks, leases, and
+> other runtime state that are not an interchange contract. Do not commit graph
+> or source data, `.gfpb` bundles, `.gfproject/` packages, imports, exports, or
+> materialized project state to Git. Keep those paths ignored and move them with
+> portable-v2 instead.
+
+The Rust engine owns selection, packaging, verification, import, and OCI
+behavior. Python, Node, and the CLI are thin projections of the same operations
+and return the same package identity, selection receipt, state classification,
+progress, and typed failures.
+
+## Choose the package you intend to share
+
+Preview before exporting. A preview is content-free: it reports the package
+class, dependency closure, omissions, redactions, estimated size, and selection
+fingerprint without copying payload bytes.
+
+Built-in profiles cover:
+
+- `complete`, for a clean project round trip;
+- `ontology-only`, for ontology plus its required bounded metadata;
+- component-selective data, artifacts, or non-secret settings; and
+- deterministic graph/data subsets with an explicit closure and redaction
+  policy.
+
+An ambiguous selector or missing dependency fails. GraphForge never widens a
+selection silently. Selective packages do not imply graph merge or ontology
+adoption; they require an explicit class-specific consumer.
+
+```text
+graphforge portable preview --current --profile complete --strict
+graphforge portable export --current --profile complete \
+  --format bundle --output transfer.gfpb
+```
+
+Use `--checkpoint NAME` instead of `--current` to package a named immutable
+checkpoint. For inspectable directory form, use `--format expanded` and a
+`.gfproject` destination. Expanded and bundle representations have different
+transport digests but verify to the same semantic package digest and selection
+receipt.
+
+## Verify before use
+
+Full verification is required before import or promotion:
+
+```text
+graphforge portable verify --input transfer.gfpb --mode full
+```
+
+`--mode inspect` checks bounded structure only. It is useful for inventory, but
+it does **not** report content as cryptographically verified. A full report
+keeps these states separate:
+
+- **completeness**: required structure and declared participants are present;
+- **integrity**: every claimed byte and semantic digest matches;
+- **compatibility**: versions, capabilities, schemas, and dependencies are
+  supported; and
+- **authenticity**: an optional explicit signer/trust policy succeeded.
+
+A digest match proves content integrity, not publisher identity or authority.
+Package identity (`package_digest`) describes selected logical content;
+transport identity describes exact bundle bytes or an OCI manifest. Neither is
+the source generation or the imported project's new generation.
+
+## Import a complete package
+
+Import only into a new, empty, or pristine initialized destination, using a
+caller-owned idempotency key:
+
+```text
+graphforge portable import --input transfer.gfpb \
+  --idempotency-key 018f0f4e-7f4d-7c24-8f8f-8cbab5f47001
+```
+
+GraphForge fully verifies before admitting the destination, streams content
+through bounded buffers, publishes one durable generation atomically, and then
+reopens it. Corruption, cancellation, resource failure, or a crash leaves the
+old-or-new authoritative state and no partially published project. Retrying the
+same operation identity is safe. Complete import rejects selective packages
+without mutating the destination.
+
+## Local and air-gapped transfer
+
+For local or removable-media transfer:
+
+1. Preview the pinned generation and review omissions/redactions.
+2. Export a `.gfpb` bundle or `.gfproject/` expanded package.
+3. Record the package digest and selection fingerprint separately from the
+   file/media checksum.
+4. Copy the completed portable package—not the live project directory.
+5. Run full verification on the receiving machine before import or selective
+   consumption.
+
+The workflow needs no registry, server, cloud account, or signature service.
+Apply normal access controls to the completed package; selection protects only
+what was intentionally omitted or redacted.
+
+## Promote through OCI by digest
+
+OCI Distribution is an optional transport adapter. Publish verifies the local
+package before upload; pull verifies downloaded content before publishing the
+destination.
+
+```text
+graphforge portable publish-oci --package transfer.gfpb \
+  --registry ghcr.io --repository example/graphforge-projects --tag candidate
+
+graphforge portable pull-oci --registry ghcr.io \
+  --repository example/graphforge-projects \
+  --reference sha256:OCI_MANIFEST_DIGEST \
+  --expected-digest sha256:PACKAGE_DIGEST \
+  --destination received.gfpb
+```
+
+Tags are mutable discovery references. Resolve a tag, record the returned OCI
+manifest digest, and promote or pull by that digest. Keep the GraphForge package
+digest separate: it remains stable across expanded, bundled, and OCI forms.
+
+Credentials are caller-owned and must come from a secure provider or process
+environment. Never put credentials in a package, command transcript, receipt,
+error report, or progress event. HTTPS is the default. `--insecure-http` is only
+for a disposable, isolated local registry and is never a production fallback.
+
+Optional signature attachments establish authenticity only when an explicit
+signer/key policy is evaluated. Unsigned content may be integrity-valid while
+authenticity is absent.
+
+## API map
+
+All surfaces call the same Rust authority:
+
+| Workflow | Rust API authority | CLI |
+| --- | --- | --- |
+| Preview | `GraphForge::preview_portable_v2_selection` | `portable preview` |
+| Export | `GraphForge::export_portable_v2` | `portable export` |
+| Inspect / verify | `verify_portable_v2` | `portable verify` |
+| Complete import | `GraphForge::import_portable_v2` | `portable import` |
+| OCI publish | `publish_portable_v2_oci` | `portable publish-oci` |
+| OCI pull | `pull_portable_v2_oci` | `portable pull-oci` |
+
+Python and Node expose equivalent preview, export, verify, import, publish, and
+pull methods without wrapper-owned archive, selection, registry, or fallback
+semantics. Counts and byte sizes remain lossless at the binding boundary.
+
+For the normative layout, identity, resource, compatibility, and security
+contract, see [Portable project v2 architecture](../book/architecture/portable-project-v2.md)
+and [ADR 0021](../adr/0021-portable-project-v2.md).
diff --git a/docs/reference/api.md b/docs/reference/api.md
index bc7b961cd..2766cf058 100644
--- a/docs/reference/api.md
+++ b/docs/reference/api.md
@@ -32,6 +32,14 @@ across Rust, Python, and Node because all three surfaces use the versioned
 [canonical fingerprint contract](../book/architecture/canonical-fingerprints-v1.md)
 and its shared golden vectors.
 
+Portable project movement is exposed through the Rust-owned preview, export,
+verify, complete-import, OCI-publish, and OCI-pull facades. Python, Node, and
+the CLI project the same typed receipts and failures; they do not implement
+archive, selection, or registry behavior. Start with the user workflow in
+[Move projects with portable project v2](../guide/portable-projects.md), then
+use the [normative architecture contract](../book/architecture/portable-project-v2.md)
+for exact types, limits, identities, and security states.
+
 The shipped immutable provenance, assertion, confidence, evidence, capability,
 and algorithm-run surfaces implement the frozen
 [Immutable knowledge public API contract](../book/architecture/knowledge-public-api-v1.md). Their