Chain of custody receipt

Source #49914

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.

TitleResearch: Brennan Center for Justice — IRS Form 990 filings (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typeform_990
Date2026
EntityBrennan Center for Justice
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T07:10:09.590Z UTC
SHA-25617040bb2bd3f5d8c40f3168dec901002da33509a8375536df6998309b96d0043
Content length262 bytes
Content preview (first 800 chars) 
No IRS Form 990 filings found for "Brennan Center for Justice" (5 candidates rejected at disambiguation — likely name collision). This may be due to name variations, subsidiary filings, or limited search coverage — not necessarily absence from public record.

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/49914/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/49914/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/49914/receipt.json