Chain of custody receipt

Source #65426

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: SC 13D/A — Banco Santander, S.A. (2021-07-02)
Original URLhttps://www.sec.gov/Archives/edgar/data/1580608/000119312521207042/0001193125-21-207042-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2021-07-02
EntityBanco Santander
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T03:53:54.608Z UTC
SHA-2562b53b7e8c969a652f481e3311815dc47bbafa1ca3a0d627c64aad694b502042b
Content length738 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001580608",
    "0000891478"
  ],
  "period_ending": null,
  "file_num": [
    "005-88663"
  ],
  "display_names": [
    "Santander Consumer USA Holdings Inc.  (CIK 0001580608)",
    "Banco Santander, S.A.  (SAN, BCDRF)  (CIK 0000891478)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2021-07-02",
  "biz_states": [
    "TX",
    "U3"
  ],
  "sics": [
    "6141",
    "6029"
  ],
  "form": "SC 13D/A",
  "adsh": "0001193125-21-207042",
  "film_num": [
    "211067996"
  ],
  "biz_locations": [
    "Dallas, TX",
    "Madrid, U3"
  ],
  "file_type": "SC 13D/A",
  "file_description": "AMENDMENT NO. 9 TO SCHEDULE 13D",
  "inc_states": [
    "DE",
    "U3"
  ],
  "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/65426/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65426/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65426/receipt.json