Chain of custody receipt

Source #41056

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 — JPMorgan Chase (2003-03-31)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22JPMorgan%20Chase%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-03-31
EntityJPMorgan Chase
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256387c6cd6fb73fe1455c9365af514011a274e6d7c275d69967968de5f1db79c18
Content length591 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000936988"
  ],
  "period_ending": "2002-12-31",
  "file_num": [
    "000-20949"
  ],
  "display_names": [
    "MBNA AMERICA BK NAT ASSOC MBNA MASTER CREDIT CARD TRUST II  (CIK 0000936988)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2003-03-31",
  "biz_states": [
    "DE"
  ],
  "sics": [
    "6189"
  ],
  "form": "10-K",
  "adsh": "0000936988-03-000011",
  "film_num": [
    "03628484"
  ],
  "biz_locations": [
    "Wilmington, DE"
  ],
  "file_type": "10-K",
  "file_description": null,
  "inc_states": [],
  "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/41056/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41056/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41056/receipt.json