Publication evidence certificate
Chrome’s Lighthouse Can Now Audit Your Site for AI Agents. It Isn’t a Ranking Signal, and It Still Matters.
Site signatureSignature verified
This record’s cryptographic signature was checked against the site signing key in its supplied Website Identity evidence. Signing-time authorization remains indeterminate. This does not verify the author’s identity, ownership, or the truth of the content.
Review signature checksBitcoin timestampBlockchain verified
The OpenTimestamps proof links this record’s exact manifest fingerprint to a confirmed Bitcoin block. This establishes that the fingerprint existed by the block’s timestamp. It does not verify authorship, ownership, or the claimed publication date.
Review Bitcoin verificationhttps://brianwinum.com/chrome-is-now-auditing-your-site-for-ai-agents/
The evidence behind this record
Submission signature
The submission was authenticated using the key enrolled for the source site.
Manifest digest
The retained manifest bytes match the SHA-256 digest in the signed submission.
Publisher site control
A signed public HTTPS challenge verified control of the source site during enrollment. This does not verify author identity, ownership, or continuing control.
Native ContentLedger evidence
The record-scoped Bundle v3 passed the current portable verifier. Manifest bytes and source attribution match this certificate. Signing authorization remains a separate limitation.
Native record signature
Cryptographic signature result for the submitted record; this does not independently establish publisher or author identity.
Bitcoin timestamp
The complete proof binds this manifest to a Bitcoin block checked against the repository’s trusted mainnet node. Block time is not a verified publication date.
Live source content
The source page has not been fetched or compared with the submitted content fingerprint.
A history that stays intact.
08 public recordsSelect a public record to inspect its metadata and evidence. Records hidden by an earlier withdrawal remain unavailable after republication.
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First publication recorded
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Inspect the recorded evidence
Record 08Download the retained submission and repository receipt. These files document the checks shown above.
Manifest bytes · SHA-256
7f49fbe104e63cd53ce4dea2e365966ff95085a8f0d7c4596854484e212fed8eSubmission bytes · SHA-256
b0a35966a646afbd7f03eda63c3f3142a11319ffd82fbc158f77a64e39f71fa6Inspect manifest metadata
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"subject": {
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"dateModified": "2026-10-16T17:35:26+00:00",
"datePublished": "2026-10-16T10:00:00+00:00",
"description": "Chrome’s experimental, opt-in Lighthouse Agentic Browsing category checks WebMCP, accessibility, llms.txt, and Agent Resource Discovery. It isn’t a ranking signal. Here’s what the audit really tells you, where the tooling lags the standards, and what’s worth fixing now.",
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"title": "Chrome’s Lighthouse Can Now Audit Your Site for AI Agents. It Isn’t a Ranking Signal, and It Still Matters.",
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}This record documents submitted publication metadata and evidence. It does not establish legal ownership, original authorship, accuracy of the source material, or an independently verified publication time.