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.
| Title | SEC EDGAR: 4 — Andreessen Marc L (2020-01-10) |
|---|---|
| Original URL | https://www.sec.gov/Archives/edgar/data/1764925/000120919120003112/0001209191-20-003112-index.htm |
| Publication | SEC EDGAR |
| Source type | sec_filing |
| Date | 2020-01-10 |
| Entity | Marc Andreessen |
| Captured | 1970-01-01T00:00:00.000Z UTC |
| Hash computed at | 2026-05-31T02:32:34.680Z UTC |
| SHA-256 | 7cf26bacc7c9a942ab9f46d28ddab893bfed8a5110395afa580fbfbdc5e4d568 |
| Content length | 804 bytes |
{
"ciks": [
"0001160077",
"0001166586",
"0001764925"
],
"period_ending": "2020-01-08",
"file_num": [
"001-38926",
"001-38926"
],
"display_names": [
"Andreessen Marc L (CIK 0001160077)",
"HOROWITZ BENJAMIN A (CIK 0001166586)",
"Slack Technologies, Inc. (CIK 0001764925)"
],
"xsl": "xslF345X03",
"schema_version": "X0306",
"sequence": 1,
"root_forms": [
"4"
],
"file_date": "2020-01-10",
"biz_states": [
"CA"
],
"sics": [
"7385"
],
"form": "4",
"adsh": "0001209191-20-003112",
"film_num": [
"20522172",
"20522173"
],
"biz_locations": [
"",
"",
"San Francisco, CA"
],
"file_type": "4",
"file_description": "FORM 4 SUBMISSION",
"inc_states": [
"",
"",
"DE"
]…
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:
url + '\n' + content and SHA-256 it.Or POST the candidate content to /source/65038/verify and our server will compare for you:
curl -X POST https://www.goblinhouse.net/source/65038/verify \ -H "Content-Type: text/plain" \ --data-binary @document.txt
Companion machine-readable receipt: /source/65038/receipt.json