[corey-hathaway]

RFC: Core-resolved public profiles

Summary

A person's public profile is one dotNS text record, profile, under their own name: a SCALE record of typed entries (avatar as a Bulletin CID with its format, display name, pinned items, feeds). The core resolves it with the walk it already makes for product manifests, fetches the avatar bytes through the host's preimage backend, checks them against the CID, and answers the host with the profile, a definite absence, or a failure. Hosts decode nothing and fetch from no gateway. The call is host-facing only; no product can reach it.

Checklist

• Added docs/rfcs/core-resolved-public-profiles.md (no number)
• Summary, Motivation, Approach (the design and its Rust shapes), Trade-offs, Open questions
• Rust traits: none change; the call is a method on NativeTrUApiHostRuntime, not a product trait. Implementation follows in a separate PR.
• Label: rfc

Motivation

Contacts are letter tiles because no record a person can publish is read by every host. Seity now writes one under the person's name (seity cbh/profile-envelope, proven on paseo-next-v2 on 26 October). Reading it in the core gives one decoder for iOS, Android and dotli, and keeps avatar fetches off any HTTP gateway, which would otherwise learn which contacts a user looks at. Who may write the record, under which permission and who pays, is deliberately left to a follow-up RFC.

🤖 Generated with Claude Code

[github-actions]

Bundle size report

Compared with main at e61b7e3.

	Raw	Gzip	Brotli
truapi-host	8.40 MiB	5.83 MiB	5.51 MiB
truapi-provider	4.04 MiB	1.27 MiB	961.4 KiB
truapi	7.50 MiB	1.04 MiB	870.7 KiB
trinity-stack	634.2 KiB	247.5 KiB	204.8 KiB
Total	20.56 MiB	8.39 MiB	7.50 MiB

WebAssembly modules

	Raw	Gzip	Brotli
truapi-host/wasm/web/truapi_server_bg.wasm	3.29 MiB	1.14 MiB	870.3 KiB
truapi-host/wasm/web/truapi_verifiable_bg.wasm	4.89 MiB	4.64 MiB	4.61 MiB
truapi-provider/truapi_provider_bg.wasm	4.00 MiB	1.27 MiB	953.6 KiB
trinity-stack/wasm/trinity_stack_bg.wasm	564.4 KiB	230.5 KiB	190.0 KiB

No file changed size.

_{Commit: c5d3303}

[github-actions]

CI Status: 24 required jobs green, 16 passed and 8 skipped by path filter.

All job results

job	result
android-app	skipped
android-bindings	skipped
bundle-size	success
changes	success
changeset-guard	skipped
cli-package	skipped
codegen	success
e2e	skipped
explorer	success
headless-install	success
host-wasm	success
ios-app	skipped
ios-bindings	success
licenses	success
playground	success
provider-android-bindings	skipped
release-guard	success
rust	success
ts-client	success
ts-debugger	success
ts-host	success
ts-trinity-stack	success
wasm-provider	success
workflow-lint	skipped

Signing credentials: valid as of 2026-11-03

_{Commit c5d33034 · run log}