Chain of custody receipt

Source #5344

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 — MDA Space (2021-02-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22MDA%20Space%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2021-02-24
EntityMDA Space
Captured2026-04-12T17:39:57.227Z UTC
Hash computed at2026-04-12T17:39:57.227Z UTC
SHA-25612ce134823a6082cf246a787c527b34c78546c0b3ba4e0b59653aa4a55b26312
Content length11,114 bytes
Content preview (first 800 chars) 
{"took":2369,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":17,"relation":"eq"},"max_score":19.454496,"hits":[{"_index":"edgar_file","_id":"0001558370-21-001635:maxr-20201231xex21d1.htm","_score":19.454496,"_source":{"ciks":["0001121142"],"period_ending":"2020-12-31","file_num":["001-38228"],"display_names":["Maxar Technologies Inc. (CIK 0001121142)"],"xsl":null,"sequence":3,"root_forms":["10-K"],"file_date":"2021-02-24","biz_states":["CO"],"sics":["3663"],"form":"10-K","adsh":"0001558370-21-001635","film_num":["21674756"],"biz_locations":["Westminster…

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/5344/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5344/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5344/receipt.json