Chain of custody receipt

Source #41441

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 — RADARSAT Constellation Mission (RCM) (2020-03-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22RADARSAT%20Constellation%20Mission%20(RCM)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2020-03-02
EntityRADARSAT Constellation Mission (RCM)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256caafc1394cbaf61af63607172102cc597b36d7632b4fae558e26941a28f25af6
Content length559 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001121142"
  ],
  "period_ending": "2019-12-31",
  "file_num": [
    "001-38228"
  ],
  "display_names": [
    "Maxar Technologies Inc.  (CIK 0001121142)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2020-03-02",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "3663"
  ],
  "form": "10-K",
  "adsh": "0001558370-20-001895",
  "film_num": [
    "20677303"
  ],
  "biz_locations": [
    "Westminster, CO"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "inc_states": [],
  "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/41441/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41441/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41441/receipt.json