Chain of custody receipt

Source #63931

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 — Mark Esper (2024-11-18)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Mark%20Esper%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2024-11-18
EntityMark Esper
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-27T01:46:16.272Z UTC
SHA-256fe4f02c22a10b24e200f183182f51f91ee280303df102c23b38ae3fb20d02e95
Content length591 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001808548"
  ],
  "period_ending": null,
  "file_num": [
    "021-529642"
  ],
  "display_names": [
    "Elroy Air, Inc.  (CIK 0001808548)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2024-11-18",
  "biz_states": [
    "CA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001808548-24-000003",
  "film_num": [
    "241469493"
  ],
  "biz_locations": [
    "South San Francisco, CA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B"
  ]
}

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/63931/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63931/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63931/receipt.json