Chain of custody receipt

Source #60767

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 — Amalgamated Transit Union (2003-12-01)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Amalgamated%20Transit%20Union%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-12-01
EntityAmalgamated Transit Union
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:54:46.835Z UTC
SHA-25621c8c6431ab99d5adec4b89baddf419facfccd9761bff5bb3e399eab883525a6
Content length582 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000737874"
  ],
  "period_ending": "2003-08-31",
  "file_num": [
    "000-13109"
  ],
  "display_names": [
    "LAIDLAW INTERNATIONAL INC  (CIK 0000737874)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2003-12-01",
  "biz_states": [
    "IL"
  ],
  "sics": [
    "4100"
  ],
  "form": "10-K",
  "adsh": "0000950137-03-006179",
  "film_num": [
    "031029188"
  ],
  "biz_locations": [
    "Naperville, IL"
  ],
  "file_type": "10-K",
  "file_description": "ANNUAL REPORT",
  "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/60767/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60767/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60767/receipt.json