Chain of custody receipt

Source #11335

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.

TitleSEARCH_ERROR: Katherine Clark not found in propublica_congress
Original URL(none — typed-API result with no web URL)
PublicationPipeline — search validation (propublica_congress)
Source typeclaim_flag
Date2026-04-20
EntityKatherine Clark
Captured2026-04-20T03:26:20.910Z UTC
Hash computed at2026-04-20T03:26:20.910Z UTC
SHA-256ce5975135279b8a2094c8cc0e9877ab5903b0c180c6a419fec7032cf73a67e1e
Content length284 bytes
Content preview (first 800 chars) 
Entity Katherine Clark is expected to appear in propublica_congress (matches profile: fec, opensecrets, propublica_congress). Null result likely indicates query mismatch (legal-name variant, subsidiary, or wrong identifier). No alternate identifiers stored — manual review required.

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/11335/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/11335/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/11335/receipt.json