Chain of custody receipt

Source #3399

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.

TitleSEC.gov EDGAR data access documentation
Original URLhttps://guides.library.columbia.edu/Hist_Corp_Rept/SEC
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityPost-Acceptance Correction (PAC)
Captured2026-04-09T14:18:04.247Z UTC
Hash computed at2026-04-09T14:18:04.247Z UTC
SHA-2568c449c1e0e7ce3ee8466bef6b56af1437b62429da4dcea7dfd95f7a642bac501
Content length151 bytes
Content preview (first 800 chars) 
Post-acceptance corrections are incorporated in weekly index rebuilds but removals processed on subsequent days not reflected in previous daily indexes

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/3399/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3399/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3399/receipt.json