Chain of custody receipt

Source #60937

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 — Blue Cross/Blue Shield (2003-03-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Blue%20Cross%2FBlue%20Shield%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-03-10
EntityBlue Cross/Blue Shield
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:56:18.829Z UTC
SHA-256d588a69eb43146fdbd7bf630719754fed50ae857d97911e6c852d292dc224eb0
Content length557 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001184702"
  ],
  "period_ending": "2002-12-31",
  "file_num": [
    "001-31513"
  ],
  "display_names": [
    "WELLCHOICE INC  (CIK 0001184702)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2003-03-10",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "6324"
  ],
  "form": "10-K",
  "adsh": "0000909518-03-000118",
  "film_num": [
    "03596960"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "10-K",
  "file_description": null,
  "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/60937/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60937/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60937/receipt.json