Chain of custody receipt

Source #63302

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 (2025-07-15)
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
Date2025-07-15
EntityLeonard Leo
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T22:16:04.488Z UTC
SHA-25603b2aa09cd0cce677fbffa9ad6cc00fc53a6b56772f7fa91e3b3de6d00a3f3e2
Content length563 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001794546"
  ],
  "period_ending": null,
  "file_num": [
    "333-288339"
  ],
  "display_names": [
    "CARLSMED, INC.  (CARL)  (CIK 0001794546)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2025-07-15",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3841"
  ],
  "form": "S-1/A",
  "adsh": "0000950170-25-095710",
  "film_num": [
    "251123045"
  ],
  "biz_locations": [
    "Carlsbad, CA"
  ],
  "file_type": "S-1/A",
  "file_description": "S-1/A",
  "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/63302/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63302/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63302/receipt.json