Chain of custody receipt

Source #4073

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: Hawaii Coalition For Health — 2021 (EIN: 94-3266455)
Original URLhttps://projects.propublica.org/nonprofits/download-filing?path=IRS%2F943266455_202112_990_2023053121328270.pdf
PublicationIRS Form 990 via ProPublica Nonprofit Explorer
Source typeform_990
Date2021
EntityHealthy Hawaii Coalition
Captured2026-04-12T01:49:29.919Z UTC
Hash computed at2026-04-12T01:49:29.919Z UTC
SHA-256b98ec5628d5968db258aef421545399fac52ba3ff7cef0bfe6d364d7b272636b
Content length2,940 bytes
Content preview (first 800 chars)
{
  "organization": {
    "id": 943266455,
    "ein": 943266455,
    "name": "Hawaii Coalition For Health",
    "careofname": "% RAFAEL DEL CASTILLO",
    "address": "289 KAWAIHAE ST APT 222",
    "city": "Honolulu",
    "state": "HI",
    "zipcode": "[ZIP+4 redacted]",
    "exemption_number": 0,
    "subsection_code": 3,
    "affiliation_code": 3,
    "classification_codes": "1000",
    "ruling_date": "2022-03-01",
    "deductibility_code": 1,
    "foundation_code": 16,
    "activity_codes": "994531000",
    "organization_code": 1,
    "exempt_organization_status_code": 1,
    "tax_period": "2024-12-01",
    "asset_code": 6,
    "income_code": 4,
    "filing_requirement_code": 1,
    "pf_filing_requirement_code": 0,
    "accounting_period": 12,
    "asset_amount": 1017401…

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/4073/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4073/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4073/receipt.json