Chain of custody receipt

Source #70526

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 (2026-07-29)
Original URLhttps://www.sec.gov/Archives/edgar/data/789019/000119312526323660/0001193125-26-323660-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-07-29
EntityMicrosoft
Captured2026-09-27T18:22:08.602Z UTC
Hash computed at2026-09-27T18:22:08.602Z UTC
SHA-256d2c3b4e505fcb5f24ad2f833ab947dab8ca046aa0ca36420a417b89c76e031f9
Content length575 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000789019"
  ],
  "period_ending": "2026-06-30",
  "file_num": [
    "001-37845"
  ],
  "display_names": [
    "MICROSOFT CORP  (MSFT)  (CIK 0000789019)"
  ],
  "xsl": null,
  "sequence": "4",
  "root_forms": [
    "10-K"
  ],
  "file_date": "2026-07-29",
  "biz_states": [
    "WA"
  ],
  "sics": [
    "7372"
  ],
  "form": "10-K",
  "adsh": "0001193125-26-323660",
  "film_num": [
    "261217433"
  ],
  "biz_locations": [
    "Redmond, WA"
  ],
  "file_type": "EX-19.3",
  "file_description": "EX-19.3",
  "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/70526/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70526/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70526/receipt.json