Chain of custody receipt

Source #6322

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.

TitleProPublica nonprofit database and IRS records
Original URLhttps://projects.propublica.org/nonprofits/organizations/522149962
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityIn-Q-Tel
Captured2026-04-13T03:05:17.654Z UTC
Hash computed at2026-04-13T03:05:17.654Z UTC
SHA-256b1410bdfc5ae5e1be9cf4da30716b040d1722b75eb3fc67f4d3973f8a402e771
Content length39,377 bytes
Content preview (first 800 chars)
In Q Tel Inc - Nonprofit Explorer - ProPublica

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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/6322/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6322/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6322/receipt.json