Chain of custody receipt

Source #47612

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 — Mithril GP LP (2021-09-20)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Mithril%20GP%20LP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-09-20
EntityMithril GP LP
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:14:36.745Z UTC
SHA-25601bab2c7d4a792801bc3e86b78bcc101250b82524a2cb63013a11e33bfb3d11e
Content length688 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001753539",
    "0001669609"
  ],
  "period_ending": null,
  "file_num": [
    "005-91190"
  ],
  "display_names": [
    "BlackSky Technology Inc.  (BKSY, BKSY-WT)  (CIK 0001753539)",
    "MITHRIL II LP  (CIK 0001669609)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2021-09-20",
  "biz_states": [
    "VA",
    "CA"
  ],
  "sics": [
    "3663"
  ],
  "form": "SC 13D",
  "adsh": "0001193125-21-277424",
  "film_num": [
    "211264064"
  ],
  "biz_locations": [
    "Herndon, VA",
    "San Francisco, CA"
  ],
  "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/47612/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47612/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47612/receipt.json