Chain of custody receipt

Source #60896

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 — AT&T Inc (2008-06-20)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22AT%26T%20Inc%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2008-06-20
EntityAT&T Inc
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:55:57.809Z UTC
SHA-256d9356d6c315e3716766d6e0b61a6c93e391ba86f94213671caed502a4e6da5ed
Content length762 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001436223",
    "0000732717"
  ],
  "period_ending": null,
  "file_num": [
    "005-84067"
  ],
  "display_names": [
    "Telmex Internacional, S.A.B. de C.V.  (CIK 0001436223)",
    "AT&T INC.  (T, TBB, TBC, T-PA, T-PC)  (CIK 0000732717)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2008-06-20",
  "biz_states": [
    "O5",
    "TX"
  ],
  "sics": [
    "8880",
    "4813"
  ],
  "form": "SC 13D",
  "adsh": "0001193125-08-137497",
  "film_num": [
    "08910602"
  ],
  "biz_locations": [
    "Mexico, Df, O5",
    "San Antonio, TX"
  ],
  "file_type": "EX-99.(I)",
  "file_description": "DIRECTORS AND OFFICERS OF THE REPORTING PERSONS",
  "inc_states": [
    "O5",
    "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/60896/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60896/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60896/receipt.json