Chain of custody receipt

Source #12670

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 — Taiwan Semiconductor Manufacturing Company (TSMC) (2013-02-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Taiwan%20Semiconductor%20Manufacturing%20Company%20(TSMC)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2013-02-15
EntityTaiwan Semiconductor Manufacturing Company (TSMC)
Captured2026-04-23T06:38:12.858Z UTC
Hash computed at2026-04-23T06:38:12.858Z UTC
SHA-2565ae4c9cf57a5b6dc97e7c4a6ae459d069c950b209f87a47ebc85eeea747007f2
Content length56,881 bytes
Content preview (first 800 chars) 
{"took":641,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":368,"relation":"eq"},"max_score":21.423092,"hits":[{"_index":"edgar_file","_id":"0001493152-16-009900:form10-q.htm","_score":21.423092,"_source":{"ciks":["0000771999"],"period_ending":"2016-03-31","file_num":["001-32146"],"display_names":["DOCUMENT SECURITY SYSTEMS INC (DSS) (CIK 0000771999)"],"xsl":null,"sequence":1,"root_forms":["10-Q"],"file_date":"2016-05-16","biz_states":["NY"],"sics":["2650"],"form":"10-Q","adsh":"0001493152-16-009900","film_num":["161654048"],"biz_locations":["Rochester…

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/12670/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12670/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12670/receipt.json