Chain of custody receipt

Source #64706

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: SC 13G/A — MCKESSON CORP (2016-02-12)
Original URLhttps://www.sec.gov/Archives/edgar/data/927653/000031506616005285/0000315066-16-005285-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2016-02-12
EntityMcKesson Corp
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T01:16:43.577Z UTC
SHA-2564a7395b162023bf2fd0dd5e2b4573757cabea07520d943e50a53ed49811d17e1
Content length672 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000927653",
    "0000315066"
  ],
  "period_ending": null,
  "file_num": [
    "005-44207"
  ],
  "display_names": [
    "MCKESSON CORP  (MCK)  (CIK 0000927653)",
    "FMR LLC  (CIK 0000315066)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2016-02-12",
  "biz_states": [
    "CA",
    "MA"
  ],
  "sics": [
    "5122",
    "0000"
  ],
  "form": "SC 13G/A",
  "adsh": "0000315066-16-005285",
  "film_num": [
    "161415018"
  ],
  "biz_locations": [
    "San Francisco, CA",
    "Boston, MA"
  ],
  "file_type": "SC 13G/A",
  "file_description": null,
  "inc_states": [
    "DE",
    "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/64706/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/64706/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/64706/receipt.json