Chain of custody receipt

Source #80033

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: Association of Cancer Care Centers (ACCC) — IRS Form 990 filings (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typeform_990
Date2026
EntityAssociation of Cancer Care Centers (ACCC)
Captured2026-10-01T12:43:30.812Z UTC
Hash computed at2026-10-01T12:43:30.812Z UTC
SHA-256c52f9df41e914794192dc4bc707aa3d6b1c6be080f17823fa81ac332700760cb
Content length243 bytes
Content preview (first 800 chars) 
No IRS Form 990 filings found for "Association of Cancer Care Centers (ACCC)" in public databases or web search. 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/80033/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80033/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80033/receipt.json