Chain of custody receipt

Source #59890

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 — American Federation of Teachers (2004-06-03)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22American%20Federation%20of%20Teachers%20(AFT)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2004-06-03
EntityAmerican Federation of Teachers (AFT)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-17T21:16:24.634Z UTC
SHA-2560f4f922cd89d6527bcf8c29743df357e2c0e8541e7b5ebdbb68676363279ec73
Content length703 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000077543",
    "0001029028"
  ],
  "period_ending": null,
  "file_num": [
    "005-13694"
  ],
  "display_names": [
    "PERINI CORP  (TPC)  (CIK 0000077543)",
    "UNION LABOR LIFE INSURANCE CO  (CIK 0001029028)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2004-06-03",
  "biz_states": [
    "MA",
    "DC"
  ],
  "sics": [
    "1540"
  ],
  "form": "SC 13D/A",
  "adsh": "0001193125-04-098249",
  "film_num": [
    "04847344"
  ],
  "biz_locations": [
    "Framingham, MA",
    "Washington, DC"
  ],
  "file_type": "SC 13D/A",
  "file_description": "SCHEDULE 13D AMENDMENT #2",
  "inc_states": [
    "MA",
    "MD"
  ],
  "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/59890/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/59890/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/59890/receipt.json