Chain of custody receipt

Source #67401

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: D — KRKN P2 2025, a Series of Carbyne Capital Master, LLC (2026-05-04)
Original URLhttps://www.sec.gov/Archives/edgar/data/2131689/000213168926000001/0002131689-26-000001-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-05-04
EntityCarbyne
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T07:53:58.309Z UTC
SHA-256b2894782c45eb7d9c5dc546f6af978ed718199720d21509aae956fe6a0c35c39
Content length636 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0002131689"
  ],
  "period_ending": null,
  "file_num": [
    "021-582660"
  ],
  "display_names": [
    "KRKN P2 2025, a Series of Carbyne Capital Master, LLC  (CIK 0002131689)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2026-05-04",
  "biz_states": [
    "FL"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0002131689-26-000001",
  "film_num": [
    "26933957"
  ],
  "biz_locations": [
    "Miami, FL"
  ],
  "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/67401/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/67401/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/67401/receipt.json