Chain of custody receipt

Source #49

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.

TitleResearch: Peter Mandelson - SEC filing
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Peter%20Mandelson%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationPublic Record Research
Source typediscovery_scope_note
Date2024
EntityPeter Mandelson
Captured2026-04-05T07:36:31.850Z UTC
Hash computed at2026-04-05T07:36:31.850Z UTC
SHA-2563c728965c8bcdbfe73092b048f0888793e444df6dedbb8346935b83f93c4e9f3
Content length3,128 bytes
Content preview (first 800 chars) 
{"took":1536,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":3,"relation":"eq"},"max_score":24.565323,"hits":[{"_index":"edgar_file","_id":"0000903423-16-001279:jsfcs13da6ex991_0922.htm","_score":24.565323,"_source":{"ciks":["0001115837","0001222806"],"period_ending":null,"file_num":["005-78965"],"display_names":["MOBILE TELESYSTEMS PJSC (CIK 0001115837)","JOINT STOCK FINANCIAL CORP SISTEMA (CIK 0001222806)"],"xsl":null,"sequence":2,"root_forms":["SC 13D"],"file_date":"2016-09-23","biz_states":["1Z"],"sics":["4812"],"form":"SC 13D/A","adsh":"0000903423-16-001279","film_num":["161900168"],"biz_locations":["Moscow, 1Z","Russian Federation…

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/49/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/49/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/49/receipt.json