Chain of custody receipt

Source #58922

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 EDGAR: filing — Anthropic (2024-04-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Anthropic%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2024-04-15
EntityAnthropic
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-14T17:02:10.715Z UTC
SHA-2561db147925e02ecee091a10654486bb4c9e7ce0f03b600de246750f82c9aed378
Content length643 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0002019525"
  ],
  "period_ending": null,
  "file_num": [
    "021-510613"
  ],
  "display_names": [
    "Hiive Anthropic Series II a Series of Hiive Anthropic LLC  (CIK 0002019525)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2024-04-15",
  "biz_states": [
    "DE"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0002019525-24-000001",
  "film_num": [
    "24844043"
  ],
  "biz_locations": [
    "Claymont, DE"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B",
    "3C",
    "3C.1"
  ]
}

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/58922/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/58922/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/58922/receipt.json