Chain of custody receipt

Source #4904

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: Imez Academy (EIN: 93-1362581)
Original URLhttps://projects.propublica.org/nonprofits/organizations/931362581
PublicationIRS Form 990 via ProPublica Nonprofit Explorer
Source typeform_990
Date2026
Entityimec
Captured2026-04-12T17:34:00.860Z UTC
Hash computed at2026-04-12T17:34:00.860Z UTC
SHA-256b6a8ce3af9b47b43c8b8222c262704fd4f19f7ddc1c4acdb3c54e147d3e7fe43
Content length1,552 bytes
Content preview (first 800 chars)
{
  "organization": {
    "id": 931362581,
    "ein": 931362581,
    "name": "Imez Academy",
    "careofname": null,
    "address": "239 RAHWAY AVE",
    "city": "Elizabeth",
    "state": "NJ",
    "zipcode": "[ZIP+4 redacted]",
    "exemption_number": 0,
    "subsection_code": 3,
    "affiliation_code": 3,
    "classification_codes": "2000",
    "ruling_date": "2023-11-01",
    "deductibility_code": 1,
    "foundation_code": 16,
    "activity_codes": "000000000",
    "organization_code": 1,
    "exempt_organization_status_code": 1,
    "tax_period": "2024-12-01",
    "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/4904/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4904/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4904/receipt.json