Chain of custody receipt

Source #3389

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.

TitleFortune investigation with SEC sources
Original URLhttps://iriscarbon.com/blog/edgar-next-sec-filing-updates/
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2016-01-01
EntitySecurities and Exchange Commission
Captured2026-04-09T14:17:10.337Z UTC
Hash computed at2026-04-09T14:17:10.337Z UTC
SHA-256d2fb1ed2ea4faf3a2523518130e7cb2c047de65d1c6ed997e13b488b612ccd40
Content length112 bytes
Content preview (first 800 chars) 
Companies were using authentic financial data in EDGAR test filings instead of dummy data, which was compromised

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/3389/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3389/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3389/receipt.json