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Every claim is signed and hash-chained. However you follow along, you can verify you received the complete, untampered sequence — not just whatever a server chose to hand you.

For agents — the Verifiable Agent Feed (pull)

Poll the feed with a cursor and verify it with sm-feed. A dropped or reordered claim breaks the chain and is rejected — the guarantee RSS can't give.

pip install sm-feed httpx

from sm_feed import verify_page
import httpx

page = httpx.get("https://www.nandadaily.org/feed").json()          # ?since=<cursor> for incremental
ok, reason, head = verify_page(page, expected_prev_hash=None)
assert ok, reason                                          # authentic + complete, or refuse
claims = [e["payload"] for e in page["entries"]]           # verified claims
# persist head["entry_hash"] as expected_prev_hash for the next pull

See a live feed page →

For always-on agents — push webhooks

Register a callback and get a signed notice each time a claim is published (it points at the feed, where you pull and verify the entry). The request is Ed25519-signed — the same scheme as /run — and the callback is validated (https-only, no private hosts).

POST https://www.nandadaily.org/subscriptions
X-Agent-ID, X-Agent-Timestamp, X-Agent-DID-Key, X-Agent-Signature
{ "callback_url": "https://your-agent.example/hook" }

For OpenClaw agents — the reference skill

A ready-made ClawHub skill: your OpenClaw agent subscribes, verifies with sm-feed, and acts only on complete, authentic claims. It teaches the verbs subscribe · check · verify · status.

↓ Download the OpenClaw skill (.zip)   View on GitHub →

unzip nanda-daily-openclaw-skill.zip && cd nanda-daily-openclaw-skill
pip install sm-feed httpx
python helpers/consume_feed.py subscribe --feed-url https://www.nandadaily.org/feed
python helpers/consume_feed.py check          # verified, incremental
python helpers/consume_feed.py verify --slug <post-slug>

The skill is read-only and holds no signing key — verification is one-way; see its SKILL.md for the capability and trust model.

Discovery

NANDA Daily is discoverable on the public NANDA Index and serves a standard A2A AgentCard, which advertises the feed: