Trust Center

The Bronze seal ledger is hash-chained: the head (hash of the last record) commits to every byte of every record before it. We periodically publish this head hash — an external immutability anchor. Anyone holding a published head can re-verify that the ledger was not rewritten.

Current head

6cbfdb4a

Records

19

Last anchor

2026-09-16 03:10:01 UTC

The ADR 2025 Volume II rules (7.5.2 mixed loading matrices, 8.6.4 tunnel table, 5.3 placarding) are now verified and sealed (rules manifest f3089d9a) — the former NEEDS_REVIEW fallbacks and split-code assumptions were replaced by verbatim-grounded verdicts. Anything still not derivable from the sealed data (e.g. EHS status per 2.2.9.1.10, carriage temperature) is surfaced as an explicit check prompt, never guessed.

Road (ADR) is live. Road + Sea (ADR + IMDG 41-22TR) is live as v0 (segregation / stowage / EmS) with honest edition and translation notes.

Every API answer carries { edition: ADR2025, articles, manifest: edda6235, generatedAt } so an auditor can reproduce it against the exact same text.

{
  "result": { ... },
  "basis": {
    "edition": "ADR2025",
    "articles": ["1.1.3.6.3", "1.1.3.6.4"],
    "manifest": "edda6235",
    "generatedAt": "2026-08-01T12:00:00.000Z"
  }
}

HazSeal collects as little personal data as it can and says exactly what it does with it. Today the only personal data we store is the waitlist e-mail address, and only with your explicit consent.

Data controller: Doğan Kirden (sole proprietorship — this will be updated once the business is incorporated).

Retention: kept until the launch-notification purpose ends, at the latest 6 months after launch. If you withdraw your consent, the record is deleted immediately.

• ·Waitlist: e-mail address only, stored solely to notify you about the product launch / founder pre-sale, on the legal basis of your explicit consent (KVKK m.5/1, GDPR art.6(1)(a)). The consent record keeps the timestamp and the version of the notice you accepted.
• ·Compliance checks: the UN numbers and quantities you enter are processed to compute the verdict. Optional SDS PDF uploads are processed in memory and discarded — never stored. Seal records store a hash of the checked payload and its edition basis — not your identity.
• ·No advertising, no profiling, no sale of data to third parties, and no transfer of waitlist e-mails to anyone else.
• ·Erasure or access: send us an e-mail and your waitlist record is removed. We answer within 30 days (KVKK m.11 / m.13, GDPR art.15-17).
• ·Empty-search log: when a search returns no result we store only the query text, timestamp and UI language — no IP address, user id or cookie — so the synonym dictionary can improve; this is not personal data processing.

Data requests: kvkk@hazseal.comkvkk-2026-08-v2