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: SC 13G/A — NORFOLK SOUTHERN CORP (2021-01-29) |
|---|---|
| Original URL | https://www.sec.gov/Archives/edgar/data/702165/000083423721004836/0000834237-21-004836-index.htm |
| Publication | SEC EDGAR |
| Source type | sec_filing |
| Date | 2021-01-29 |
| Entity | Norfolk Southern Corp. |
| Captured | 2026-09-30T08:43:40.361Z UTC |
| Hash computed at | 2026-09-30T08:43:40.361Z UTC |
| SHA-256 | 627af9aa79271e4acbe7752f7b873a90070e8c2dcc9cebf7670ff6838b6ea725 |
| Content length | 689 bytes |
{
"ciks": [
"0000702165",
"0001364742"
],
"period_ending": null,
"file_num": [
"005-52833"
],
"display_names": [
"NORFOLK SOUTHERN CORP (NSC) (CIK 0000702165)",
"BlackRock Inc. (BLK) (CIK 0001364742)"
],
"xsl": null,
"sequence": 1,
"root_forms": [
"SC 13G"
],
"file_date": "2021-01-29",
"biz_states": [
"VA",
"NY"
],
"sics": [
"4011",
"6211"
],
"form": "SC 13G/A",
"adsh": "0000834237-21-004836",
"film_num": [
"21572760"
],
"biz_locations": [
"Norfolk, VA",
"New York, NY"
],
"file_type": "SC 13G/A",
"file_description": null,
"inc_states": [
"VA",
"DE"
],
"items": []
}
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/76610/verify and our server will compare for you:
curl -X POST https://www.goblinhouse.net/source/76610/verify \ -H "Content-Type: text/plain" \ --data-binary @document.txt
Companion machine-readable receipt: /source/76610/receipt.json