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.

“Die App tut exakt das, was sie soll”
Google Play · 5/5 · 2026-07-31

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 2543154575

Proof data

Record hash (SHA-256): 65e4b2eb52d6f392cb7c4cb08308bce0dad6533d86d623029efd27f4276939df
Signature (Ed25519, base64): XvVWONqq5HgvD20lZiGlQN6mDv+spPxZngNFdYcWhEE/mBM1XvFt3aqBkq3SUwmMXIKfusb6GcrzNWfjTeEeCw==
Merkle root: 9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e
Merkle path: ["65e407865d4f8221aab80bcfeb70ebd67c89461ce79156ce6625789d6c68959e","8f2978a96dbdca67f5a77fefdf285465fd9685773a61b7d9a50270fdfc88ea99","2da7ef7706506d128f3947cc073629b4f11677c5cdb58ebe52d7217d0d8f25db","b073d935b3540dd893dd3ac87556609048382680e2eeefe0ca50b5b9dbbddc3d","b60ab37f8e389eaf224ae2830917d97e6be7a47760b5be62ec68b04fef62133a","aa7e92dad43dfca494a95f661bdccae7c95a4b5884af51f67d3b546f539c31a8","046657e12b6c6df4a751216fdd9a6c52717635869f7d36375128e945b0978c73","63eac9217b4b5cbe81879af28120deabb43901ffb7fa1b41c4fd6352b3db3702","424f048b07a859010347511da1018df0ad292fd3d0ef6853911bbfc39d0a9216","356b5afb583f295596ea9d4e8dff86ce69a41f9045f5853054db8d05ed027a72","5dabcdb14e83e92f6a4b0a0b6f082dc87d9eb8769967094e0c95e4c11a27f66f","a383dda54097c814975bbe4525893869077a5f762d195960171df04e5dba1c42","969114be98209aceeb13470003a6154b1294d7c8dc772e07d6980600f808e932","bb86c0787e05591c350bbf95c58c2d99f0ba679999db51dee6e8bbec88a42a61","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…
Expected log hash: 0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","kind":"published-quote","locale":"de","page":"theme:storytel/quality/de","quote":"Die App tut exakt das, was sie soll","rating":5,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (9ca8f1c1ad15…), 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.