Chain of custody receipt

Source #20012

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	Claim: Smith voted in favor of a carbon tax amendment requiring congressional approval
Original URL	https://justfacts.votesmart.org/issue/3243/amendment-vote/116880/congressman-adrian-smith
Publication	Handoff
Source type	`congress_handoff`
Date	—
Entity	Adrian Smith
Captured	2026-04-25T05:35:15.119Z UTC
Hash computed at	2026-04-25T05:35:15.119Z UTC
SHA-256	`190d7bae0c8a48d826840bd404e8220d18260cd958a8f7373324bbd367e97625`
Content length	2,492 bytes

Content preview (first 800 chars)

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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:

Take the URL field and the original document content.
Concatenate url + '\n' + content and SHA-256 it.
Compare to the SHA-256 row above.

Or POST the candidate content to /source/20012/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/20012/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/20012/receipt.json