Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Warum kann ich keine Mailadressen löschen?”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2684163355

Proof data

Record hash (SHA-256)

0ec30137bf1ef3d0803e1127f96a77c333528709fd080239348392583a689a09

Signature (Ed25519, base64)

Xh/SFCZN5xTaudw19lHA330mDKep0z8jLDM7n85GVvo/kDdUKqhBe8RaeMq5bDeVcTbuf9PGu2GzPjT4jPqmCA==

Merkle root

404e3c13e38cb64105d39456b35227bf21885d8da4853edbdc28c1291169b69f

Merkle path

["0ec63a339c08a70747bb8666c6ea6bc054001d26e4d0dd803cf9e05beb0fa62f","c70539834933fae51038571d0e51d26debcf3b3589f89fc3fc204f9e724e9c31","c0511863c811889c0d065010871a3f756cb96442e50b5ed67b728d8d94cc89b1","e93013ab4388be7d5af9b4531a953174df1816cef9d93b52ddd52b3f27f54c53","be02f6359616076aa271f1f69e73c391c92edb6476851c470387fcedf87bbfe5","5ac15732d35ac2e00c48cb01b8336bdd7cdf1c1e6b8bdc0256bb359d5433c3c7","f7497fd78bd3f0f0fc2b970bc9c5799a1b002c5c437109aba55806c9563e0260","6f5160d3cf89255e4ff26fcf3d175c1cb48ae65c628ab073ea95d7875c16eaf5","f517040690c6d3911799088e02598de65d459d15d26bafb3c8b402cd9ac3dd87","761f54f9ecb7be0944c3916d23b154e9d6d14d207f62eb9220fa0a96c3ded0ad","3ccc20e9593eca6775f2c8a1da14b38dc53b4ea30b9b5b7e75b398b60402074d","5c0eadcd95032a9154ecd9aff9cf286ce38d392bb7e5263e65d22b770c6624a4","15d2e7111dd71c6ca8e6466c194f5ce08d202efe38071f7b3fe773e133385ebd","bde050f080e8537023a46ea459bb1518e1d885f47b2ddaedca03653a64f35bdd","63269a191012537d921c10ea30214f6deffddee0c8302c1d6e8c9845e6049806"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2684163355 · entry 108e9186e8c5677a55e5…

Expected log hash

4066e61b2031c5768194188ceb0300adcf0b5443c63f9d6a4476a0f6ecc5beac The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1788335271191","kind":"published-quote","locale":"de","page":"subtheme:proton/ordering/gratis-plan-upgrades/de","quote":"Warum kann ich keine Mailadressen löschen?","rating":1,"review_date":"2026-07-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (404e3c13e38c…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.