Chain of custody receipt

Source #66300

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleSEC EDGAR: 10-K — MICROSOFT CORP (2013-07-30)
Original URLhttps://www.sec.gov/Archives/edgar/data/789019/000119312513310206/0001193125-13-310206-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2013-07-30
EntityMicrosoft
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T00:51:16.357Z UTC
SHA-256fbd1c5d1008ae79180f92d3afa979f6105f85a934586c68d778779ae914f1d76
Content length637 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000789019"
  ],
  "period_ending": "2013-06-30",
  "file_num": [
    "000-14278"
  ],
  "display_names": [
    "MICROSOFT CORP  (MSFT)  (CIK 0000789019)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2013-07-30",
  "biz_states": [
    "WA"
  ],
  "sics": [
    "7372"
  ],
  "form": "10-K",
  "adsh": "0001193125-13-310206",
  "film_num": [
    "13996075"
  ],
  "biz_locations": [
    "Redmond, WA"
  ],
  "file_type": "EX-10.19",
  "file_description": "RESIGNATION AGREEMENT BETWEEN MICROSOFT CORPORATION AND STEVEN SINOFSKY",
  "inc_states": [
    "WA"
  ],
  "items": []
}

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

Or POST the candidate content to /source/66300/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66300/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66300/receipt.json