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Publication evidence certificate

Google Just Standardized the Machine-Readable Web, and Almost Nobody Noticed

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.

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Bitcoin 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 verification

https://brianwinum.com/google-just-standardized-the-machine-readable-web-and-almost-nobody-noticed/

Source author
Brian Winum

As attributed by the publisher

Source publisher
Brian Winum

Publisher-submitted attribution

First published by source

Publisher-reported date

The evidence behind this record

Submission signature

The submission was authenticated using the key enrolled for the source site.

Verified

Manifest digest

The retained manifest bytes match the SHA-256 digest in the signed submission.

Verified

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.

Verified at enrollment

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.

Valid with limitations

Native record signature

Cryptographic signature result for the submitted record; this does not independently establish publisher or author identity.

Verified

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.

Bitcoin anchor verified

Checked · Block 974600 · View Bitcoin block

Live source content

The source page has not been fetched or compared with the submitted content fingerprint.

Not checked

A history that stays intact.

04 public records

Select a public record to inspect its metadata and evidence. Records hidden by an earlier withdrawal remain unavailable after republication.

  1. 04

    Publication revision recordedLatest

    a8a3a59f-55b4-4d3a-b2f5-0e36095132d8
    Viewing record
  2. 03

    Publication revision recorded

    b18fc728-a4c8-4e29-9cb0-4998fe7efa95
    View record 03
  3. 02

    Publication revision recorded

    3300706f-197d-44d8-b104-ba412184867f
    View record 02
  4. 01

    First publication recorded

    42a66b81-7cfe-4da1-b0a0-90fcdbb36f1c
    View record 01

Inspect the recorded evidence

Record 04

Download the retained submission and repository receipt. These files document the checks shown above.

Manifest bytes · SHA-256

dc9e64fec5de3cf67056acc5551fd3c5fc511129b5a18abec79c311947d50359

Identifies the manifest file, not a fresh comparison with the live article.

Submission bytes · SHA-256

6bd38cfe6e1f5bf45d06ffed74f1f4467a8dde7a39778b019c30dfe2963b4354
Download evidence JSON Download manifest What this certifies
Inspect manifest metadata
{
  "$schema": "https://brianwinum.com/?wal_manifest_schema=2",
  "digests": [
    {
      "algorithm": "sha-256",
      "canonicalization": "wp-contentledger-content-v1",
      "scope": "canonical-content",
      "value": "162e614dad1660f9a689cbda1ac52d5ae13ecd321ed94c37d33cd7d69c2426cc"
    }
  ],
  "entryId": "urn:uuid:e6155e72-ceee-4ce2-a379-03f75404eae1",
  "evidenceScope": [
    "canonical-content-integrity",
    "publisher-controlled-recording"
  ],
  "generator": {
    "name": "WP ContentLedger",
    "version": "0.13.29"
  },
  "limitations": [
    "Origin evidence does not by itself prove legal ownership, original authorship, first publication, or third-party preservation.",
    "Internet Archive status and later evidence artifacts are maintained separately so this immutable manifest is never rewritten."
  ],
  "manifestVersion": "2.0",
  "provenance": {
    "evidenceCapturedAt": "2026-11-03T21:51:26+00:00",
    "recordSource": "bulk",
    "sealedFromPreviouslyCapturedEvidence": false
  },
  "sealedAt": "2026-11-03T21:51:26+00:00",
  "subject": {
    "author": {
      "name": "Brian Winum",
      "url": "https://brianwinum.com/author/brian-winum/"
    },
    "canonicalUrl": "https://brianwinum.com/google-just-standardized-the-machine-readable-web-and-almost-nobody-noticed/",
    "dateModified": "2026-07-28T17:01:39+00:00",
    "datePublished": "2026-06-22T12:00:00+00:00",
    "description": "Buried in a Google Cloud rebrand announcement was the Open Knowledge Format, a markdown-and-YAML spec that lets AI agents read your content directly. It stacks on top of your sitemap and LLMs.txt rather than replacing them, and it preserves the internal links a flat scrape throws away.",
    "featuredImage": "https://brianwinum.com/wp-content/uploads/2026/07/google-machine-readable-web-featured-robot-reader-branded.webp",
    "language": "en-US",
    "postType": "post",
    "publisher": {
      "name": "Brian Winum",
      "url": "https://brianwinum.com/"
    },
    "taxonomies": {
      "category": [
        {
          "name": "Blog",
          "slug": "blog"
        }
      ],
      "post_tag": [
        {
          "name": "Google",
          "slug": "google"
        },
        {
          "name": "OKF",
          "slug": "okf"
        },
        {
          "name": "Open Knowledge Format",
          "slug": "open-knowledge-format"
        }
      ]
    },
    "title": "Google Just Standardized the Machine-Readable Web, and Almost Nobody Noticed",
    "type": "WebPage"
  }
}

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.