diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # stream
 
-a zig implementation of [jetstream](https://github.com/bluesky-social/jetstream) — the full-network archive and streaming service for atproto. built on [zat](https://tangled.org/zat.dev/zat).
+a zig implementation of [jetstream](https://github.com/bluesky-social/jetstream) — the full-network archive and streaming service for atproto, designed and written by [Jim Calabro](https://calabro.io). the archival design is jetstream V2's; this port carries it to zig, built on [zat](https://tangled.org/zat.dev/zat).
 
 A live instance runs at **[stream.waow.tech](https://stream.waow.tech)** —
 Jetstream V2-compatible feeds with the whole network archived behind them
diff --git a/docs/product-copy-context.md b/docs/product-copy-context.md
index b183e50..4aae4f0 100644
--- a/docs/product-copy-context.md
+++ b/docs/product-copy-context.md
@@ -29,6 +29,16 @@ The distinction matters. “Rebuilt from upstream every restart” does not impl
 “fan out to every PDS every restart.” A durable, colocated or nearby archive can
 make ephemeral consumers cheap without making the network absorb the rebuild.
 
+## Attribution
+
+Jetstream V2 (`bluesky-social/jetstream`) is designed and written by Jim
+Calabro ([calabro.io](https://calabro.io)); upstream itself runs on atmos, his
+Go atproto library. The archival design — full-network history in columnar
+segments behind the live tail — is upstream's choice, which this port carries;
+public copy must not present it as Stream's invention. Upstream is pre-1.0 and
+unannounced, and its own instances exist independently of this port; do not
+describe stream.waow.tech as the only archival jetstream.
+
 ## Claims the public pages may make
 
 - Say **historical bootstrap** only when it is configured and actually running.