Chain of custody receipt

Source #6330

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.

TitleCB Insights data
Original URLhttps://projects.propublica.org/nonprofits/display_990/522149962/download990pdf_03_2022_prefixes_47-54/522149962_202103_990_2022030219680233
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2026-02-13
EntityIn-Q-Tel
Captured2026-04-13T03:05:17.721Z UTC
Hash computed at2026-04-13T03:05:17.721Z UTC
SHA-256d77ce7dfaf4b01d4c0e7ac063e5548b783ce7934879dd94089658ec459d0d548
Content length5,292 bytes
Content preview (first 800 chars)
In Q Tel Inc - Form 990 for period ending Mar 2021 - 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/6330/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6330/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6330/receipt.json