Chain of custody receipt

Source #5429

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: Defi Education Fund — 2023 (EIN: 87-1014079)
Original URLhttps://projects.propublica.org/nonprofits/organizations/871014079
PublicationIRS Form 990 via ProPublica Nonprofit Explorer
Source typeform_990
Date2023
EntityDeFi Education Fund
Captured2026-04-12T17:40:39.591Z UTC
Hash computed at2026-04-12T17:40:39.591Z UTC
SHA-25626dda2d62c484126d6bc9b48450182d85f843e88d53f76f5a13abfe6685b7f7e
Content length2,795 bytes
Content preview (first 800 chars)
{
  "organization": {
    "id": 871014079,
    "ein": 871014079,
    "name": "Defi Education Fund",
    "careofname": null,
    "address": "1155 F STREET NW STE 1050",
    "city": "Washington",
    "state": "DC",
    "zipcode": "[ZIP+4 redacted]",
    "exemption_number": 0,
    "subsection_code": 4,
    "affiliation_code": 3,
    "classification_codes": "3000",
    "ruling_date": "2022-03-01",
    "deductibility_code": 2,
    "foundation_code": 0,
    "activity_codes": "000000000",
    "organization_code": 1,
    "exempt_organization_status_code": 1,
    "tax_period": "2024-12-01",
    "asset_code": 8,
    "income_code": 8,
    "filing_requirement_code": 1,
    "pf_filing_requirement_code": 0,
    "accounting_period": 12,
    "asset_amount": 18450662,
    "income_amount": 13273908…

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/5429/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5429/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5429/receipt.json