Chain of custody receipt

Source #4248

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.

TitleIRS Form 990: Acts (EIN: 33-0859311)
Original URLhttps://projects.propublica.org/nonprofits/organizations/330859311
PublicationIRS Form 990 via ProPublica Nonprofit Explorer
Source typeform_990
Date2026
EntityACTS17
Captured2026-04-12T01:50:38.206Z UTC
Hash computed at2026-04-12T01:50:38.206Z UTC
SHA-256b6a4be92794bf63d4e39294ae1b6b0a0096bff3822228a37ca523b472736b514
Content length1,548 bytes
Content preview (first 800 chars)
{
  "organization": {
    "id": 330859311,
    "ein": 330859311,
    "name": "Acts",
    "careofname": "% JAMES M ADEE",
    "address": "3104 CRELA ST",
    "city": "Bonita",
    "state": "CA",
    "zipcode": "[ZIP+4 redacted]",
    "exemption_number": 0,
    "subsection_code": 3,
    "affiliation_code": 3,
    "classification_codes": "1000",
    "ruling_date": "1999-08-01",
    "deductibility_code": 1,
    "foundation_code": 15,
    "activity_codes": "000000000",
    "organization_code": 1,
    "exempt_organization_status_code": 1,
    "tax_period": "2022-12-01",
    "asset_code": 0,
    "income_code": 0,
    "filing_requirement_code": 2,
    "pf_filing_requirement_code": 0,
    "accounting_period": 12,
    "asset_amount": 0,
    "income_amount": 0,
    "revenue_amount": 0…

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/4248/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4248/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4248/receipt.json