Chain of custody receipt

Source #66273

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 13G — Founders Fund V Management, LLC (2021-02-16)
Original URLhttps://www.sec.gov/Archives/edgar/data/1801777/000110465921024315/0001104659-21-024315-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2021-02-16
EntityFounders Fund
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T00:50:38.417Z UTC
SHA-25675295742069b2601856caeb9907bd179c8a9d44c204e9844aeca12e0c0a55326
Content length688 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001801777",
    "0001697733"
  ],
  "period_ending": null,
  "file_num": [
    "005-91533"
  ],
  "display_names": [
    "Applied Molecular Transport Inc.  (CIK 0001801777)",
    "Founders Fund V Management, LLC  (CIK 0001697733)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2021-02-16",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "2834"
  ],
  "form": "SC 13G",
  "adsh": "0001104659-21-024315",
  "film_num": [
    "21640207"
  ],
  "biz_locations": [
    "South San Francisco, CA",
    "San Francisco, CA"
  ],
  "file_type": "SC 13G",
  "file_description": "SC 13G",
  "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/66273/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66273/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66273/receipt.json