Chain of custody receipt

Source #160

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: Trumid Holdings - federal contracts site:usaspending.gov
Original URLhttps://www.usaspending.gov/search/?hash=eyJmaWx0ZXJzIjp7ImtleXdvcmQiOiJUcnVtaWQgSG9sZGluZ3MifX0
PublicationPublic Record Research
Source typediscovery_scope_note
Date2024
EntityTrumid Holdings
Captured2026-04-05T07:59:38.374Z UTC
Hash computed at2026-04-05T07:59:38.374Z UTC
SHA-25670e9e27a60f7e6d867ae90ec6b70c88da6a94c03a256031cfd3fc91fba037f81
Content length712 bytes
Content preview (first 800 chars)
Trumid Holdings LLC is a financial technology company founded in 2014 that operates an electronic trading platform for corporate bonds. The company is primarily focused on the institutional fixed-income market, providing technology solutions for bond trading between financial institutions. Based on available public information, Trumid operates as a private fintech company serving the financial services industry rather than as a federal government contractor. A search of USASpending.gov for federal contract awards would be the authoritative source for any government contracting activity, but Trumid's core business model as a bond trading platform does not suggest significant federal contracting activity.

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/160/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/160/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/160/receipt.json