Chain of custody receipt

Source #9649

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 — John K. Tien (2024-04-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22John%20K.%20Tien%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2024-04-02
EntityJohn K. Tien
Captured2026-04-13T21:20:52.251Z UTC
Hash computed at2026-04-13T21:20:52.251Z UTC
SHA-256ce310b9c582a9503ccd87cae800618d92608ef02fc4491f3927c1dd364e90c3b
Content length14,502 bytes
Content preview (first 800 chars) 
{"took":503,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":23,"relation":"eq"},"max_score":21.472204,"hits":[{"_index":"edgar_file","_id":"0000100885-25-000042:a202410-kexx24.htm","_score":21.472204,"_source":{"ciks":["0000100885"],"period_ending":"2024-12-31","file_num":["001-06075"],"display_names":["UNION PACIFIC CORP (UNP) (CIK 0000100885)"],"xsl":null,"sequence":"7","root_forms":["10-K"],"file_date":"2025-02-07","biz_states":["NE"],"sics":["4011"],"form":"10-K","adsh":"0000100885-25-000042","film_num":["25600409"],"biz_locations":["Omaha…

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/9649/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/9649/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/9649/receipt.json