Chain of custody receipt

Source #46718

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 — Continental Stock Transfer & Trust Company (2025-08-29)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Continental%20Stock%20Transfer%20%26%20Trust%20Company%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2025-08-29
EntityContinental Stock Transfer & Trust Company
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:18:48.919Z UTC
SHA-256c6114125c579b670d5eea882763dab447317dcf7be50a75290db14d046cdbcdb
Content length558 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0002083106"
  ],
  "period_ending": null,
  "file_num": [
    "333-289948"
  ],
  "display_names": [
    "Grayscale Cardano Trust ETF  (CIK 0002083106)"
  ],
  "xsl": null,
  "sequence": "6",
  "root_forms": [
    "S-1"
  ],
  "file_date": "2025-08-29",
  "biz_states": [
    "CT"
  ],
  "sics": [],
  "form": "S-1",
  "adsh": "0002083106-25-000004",
  "film_num": [
    "251281565"
  ],
  "biz_locations": [
    "Stamford, CT"
  ],
  "file_type": "EX-10.9",
  "file_description": "EX-10.9",
  "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/46718/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/46718/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/46718/receipt.json