Chain of custody receipt

Source #2613

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.

TitleWikipedia description of 2005 DSEI exhibition
Original URLhttps://www.sec.gov/search-filings
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2005-01-01
EntitySCL Group
Captured2026-04-08T17:26:48.321Z UTC
Hash computed at2026-04-08T17:26:48.321Z UTC
SHA-256aae5083c15773dd081f904f0b1c69cafdd2af4a9c1a9343e56cdfddc0daa9b98
Content length9,593 bytes
Content preview (first 800 chars)
SEC.gov | Search Filings

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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/2613/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/2613/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/2613/receipt.json