Chain of custody receipt

Source #61489

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: filing — McKesson Corp (2015-11-05)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22McKesson%20Corp%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2015-11-05
EntityMcKesson Corp
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:16:17.747Z UTC
SHA-256b3f97d63c22dcadd4804556116d69f2ea78393a0ce0bf9f53a3d6ababe86c198
Content length619 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000775368"
  ],
  "period_ending": "2015-09-30",
  "file_num": [
    "028-01590"
  ],
  "display_names": [
    "ALLEGHANY CORP /DE  (CIK 0000775368)"
  ],
  "xsl": "xslForm13F_X01",
  "sequence": 2,
  "root_forms": [
    "13F-HR"
  ],
  "file_date": "2015-11-05",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "6331"
  ],
  "form": "13F-HR",
  "adsh": "0000950123-15-010828",
  "film_num": [
    "151201337"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "INFORMATION TABLE",
  "file_description": "INFORMATION TABLE FOR FORM 13F",
  "inc_states": [
    "DE"
  ],
  "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/61489/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61489/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61489/receipt.json