Chain of custody receipt

Source #61461

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 — Machinists/Aerospace Workers Union (2003-03-07)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Machinists%2FAerospace%20Workers%20Union%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-03-07
EntityMachinists/Aerospace Workers Union
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:13:30.699Z UTC
SHA-256898de92078c3312c206d8c0c0359ddd6e14de87aee38b54f0d9c7d7c36a35692
Content length610 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000079716"
  ],
  "period_ending": "2002-12-31",
  "file_num": [
    "001-05313"
  ],
  "display_names": [
    "POTLATCH CORP  (CIK 0000079716)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2003-03-07",
  "biz_states": [
    "WA"
  ],
  "sics": [
    "2621"
  ],
  "form": "10-K",
  "adsh": "0001032210-03-000293",
  "film_num": [
    "03595746"
  ],
  "biz_locations": [
    "Spokane, WA"
  ],
  "file_type": "10-K",
  "file_description": "ANNUAL REPORT FOR THE FISCAL YEAR ENDED DECEMBER 31, 2002",
  "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/61461/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61461/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61461/receipt.json