Chain of custody receipt

Source #67143

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 13D — Foundry Group Select Fund, L.P. (2021-02-22)
Original URLhttps://www.sec.gov/Archives/edgar/data/746210/000110465921026239/0001104659-21-026239-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2021-02-22
EntityFoundry
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T02:12:30.805Z UTC
SHA-2564372d7a834ab93914a741d43b97a4110957d5e3a2f82c5c09523f054c08e2b1c
Content length668 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000746210",
    "0001581766"
  ],
  "period_ending": null,
  "file_num": [
    "005-47565"
  ],
  "display_names": [
    "Oblong, Inc.  (OBLG)  (CIK 0000746210)",
    "Foundry Group Select Fund, L.P.  (CIK 0001581766)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2021-02-22",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "7370"
  ],
  "form": "SC 13D",
  "adsh": "0001104659-21-026239",
  "film_num": [
    "21661213"
  ],
  "biz_locations": [
    "Conifer, CO",
    "Boulder, CO"
  ],
  "file_type": "SC 13D",
  "file_description": "SC 13D",
  "inc_states": [
    "DE",
    "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/67143/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/67143/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/67143/receipt.json