Chain of custody receipt

Source #59894

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 (2003-09-30)
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
Date2003-09-30
EntityAmerican Federation of Teachers (AFT)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-17T21:16:24.708Z UTC
SHA-256b1fde02bcb5e0cc5121a762fa87b52a222138cb87a46653f1b3682302d59c5c8
Content length572 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001089567"
  ],
  "period_ending": "2003-06-30",
  "file_num": [
    "000-27817"
  ],
  "display_names": [
    "EDISON SCHOOLS INC  (CIK 0001089567)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2003-09-30",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "8200"
  ],
  "form": "10-K/A",
  "adsh": "0000950123-03-010934",
  "film_num": [
    "03916208"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "10-K/A",
  "file_description": "FORM 10-K",
  "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/59894/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/59894/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/59894/receipt.json