Chain of custody receipt

Source #13079

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 — Suhas Subramanyam (2022-02-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Suhas%20Subramanyam%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2022-02-28
EntitySuhas Subramanyam
Captured2026-04-23T06:52:05.464Z UTC
Hash computed at2026-04-23T06:52:05.464Z UTC
SHA-2565f473fa1b14bb2c98145ad7efcecb5ab2e295fef388c6e3b31539c4ca730e026
Content length3,370 bytes
Content preview (first 800 chars)
{"took":274,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":4,"relation":"eq"},"max_score":29.043982,"hits":[{"_index":"edgar_file","_id":"0001493152-21-025336:form10-k.htm","_score":29.043982,"_source":{"ciks":["0000825322"],"period_ending":"2021-06-30","file_num":["000-30202"],"display_names":["MPHASE TECHNOLOGIES, INC. (XDSL) (CIK 0000825322)"],"xsl":null,"sequence":1,"root_forms":["10-K"],"file_date":"2021-10-13","biz_states":["MD"],"sics":["3690"],"form":"10-K","adsh":"0001493152-21-025336","film_num":["211321864"],"biz_locations":["Gaithersburg…

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/13079/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/13079/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/13079/receipt.json