Chain of custody receipt

Source #76506

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.

TitleResearch: National Stone, Sand & Gravel Association (Rockpac) — SEC filings (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typesec_filing
Date2026
EntityNational Stone, Sand & Gravel Association (Rockpac)
Captured2026-09-29T08:23:54.204Z UTC
Hash computed at2026-09-29T08:23:54.204Z UTC
SHA-2566bfdb929a46cbc9cb575b63f4943200133bb758ff400e51be5901a9acc9970d9
Content length244 bytes
Content preview (first 800 chars) 
No SEC filings found for "National Stone, Sand & Gravel Association (Rockpac)" in public databases or web search. This may be due to name variations, subsidiary filings, or limited search coverage — not necessarily absence from public record.

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/76506/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/76506/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/76506/receipt.json