Chain of custody receipt

Source #60804

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 Electric Power (2019-02-21)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22American%20Electric%20Power%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2019-02-21
EntityAmerican Electric Power
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:55:17.809Z UTC
SHA-256a89ed12ba3c25bb59e5c38828b063e57743670bb11a63796efc210c0e7ef9c9e
Content length1,656 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000004904",
    "0000081027",
    "0000092487",
    "0000006879",
    "0000050172",
    "0000073986",
    "0001702494",
    "0001721781"
  ],
  "period_ending": "2018-12-31",
  "file_num": [
    "001-03525",
    "000-00343",
    "001-03146",
    "001-03457",
    "001-03570",
    "001-06543",
    "333-217143",
    "333-221643"
  ],
  "display_names": [
    "AMERICAN ELECTRIC POWER CO INC  (AEP)  (CIK 0000004904)",
    "PUBLIC SERVICE CO OF OKLAHOMA  (CIK 0000081027)",
    "SOUTHWESTERN ELECTRIC POWER CO  (CIK 0000092487)",
    "APPALACHIAN POWER CO  (CIK 0000006879)",
    "INDIANA MICHIGAN POWER CO  (CIK 0000050172)",
    "OHIO POWER CO  (CIK 0000073986)",
    "AEP Transmission Company, LLC  (CIK 0001702494)",
    "AEP Texas Inc.  (CIK 0001721781)"
  ],
  "xsl": null…

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/60804/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60804/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60804/receipt.json