Chain of custody receipt

Source #63301

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 — Leonard Leo (2025-06-26)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Leonard%20Leo%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2025-06-26
EntityLeonard Leo
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T22:16:04.434Z UTC
SHA-256e7b17d3037f605c6e172fdad80614056edc9334af86cc5e1e233bfb4ce051f6d
Content length554 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001794546"
  ],
  "period_ending": null,
  "file_num": [
    "333-288339"
  ],
  "display_names": [
    "CARLSMED, INC.  (CIK 0001794546)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2025-06-26",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3841"
  ],
  "form": "S-1",
  "adsh": "0000950123-25-006117",
  "film_num": [
    "251076602"
  ],
  "biz_locations": [
    "Carlsbad, CA"
  ],
  "file_type": "S-1",
  "file_description": "FORM S-1",
  "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/63301/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63301/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63301/receipt.json