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.

“Sie zwingen mich, für die Plus-Mitgliedschaft zu bezahlen, um E-Mails empfangen oder senden zu können.”
Google Play · 2/5 · 2026-08-07

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 2524810465

Proof data

Record hash (SHA-256): 0931990e409fb77d8c9c3490ee9d71ea568f82e7104e3a5af69af1c33357d419
Signature (Ed25519, base64): Y80xTIsHFeXt242Hb2WyvWFcIgqbxade10YbhyJGQSuQaPHjjW2BwyjiG9xbbJ+BqqJK79OJ9uFdpYWu0H08Dw==
Merkle root: 3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3
Merkle path: ["092ae0ef04a8f27fa4d4e03c2ddb6c393bbf1a7baadb9892b8acb2d0b79ec28a","e0e53fddc3e700aa4cfbe92c5aca09fa8a77d29fc18004d6600ba9516e6afcbc","632a12d4fae7de002a5aefc124a20709c4cec4f20b98565d703908617f500be8","35dbd446ed230d7acbe838741d9e1648e28481d562fea7e0e43dd78ae299fbfa","c2640b489c361bd25a020d084086aac575f03586a4acfa8d727885abb3ace6e7","cec07d97a900a945b2575a3da37f33aa520eafafd5d07caa3261c1549fd0dea6","28002a7c3a4eee1018f6fb62fcd505d8fe9b1a589a73e05a7adefbb572822334","e3da12725f546289139bec1eae884079473478e8b4a3c7a32823ce668c52f123","3eb7b3ed5b9bddc33fda4c28fdbce11c2df14d266fd76f1f30a1a5bbaa3625cb","21bfd967beebef549712bdd5934300fc0ac86addf90f1223764607fd47af5806","aacadc64e7d7887ff88699bc333daff48d46b4e6179a20d2f7632f1b62733181","a84f19b73d0745b184029b69cf9f25565f40d942048a82955efda21766296b26","fb183b6f6365289d9e03a04ab6a5ee3d62de93cb7a6ce2bfeccdcb2ed00acf48","0790a9ec23117ba3e0ba9a310290906a4f1d2b0055d4607b106ab21651087c1d","db72b82118c1e08b77018004fa72584377d6eccdc4c75ec19bef6a78273f75c9"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…
Expected log hash: 129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"de","page":"theme:proton/billing/de","quote":"Sie zwingen mich, für die Plus-Mitgliedschaft zu bezahlen, um E-Mails empfangen oder senden zu können.","rating":2,"review_date":"2026-08-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (3e1c67438f65…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.