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.

“Es ist teuer für uns aus drittweltländern.”
Google Play · 5/5 · 2026-06-10

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 3668908157

Proof data

Record hash (SHA-256): 02df57bd25309f4699e4618d3a0feb37b3edd17c8d84efeeeb46b2d776a6b3a1
Signature (Ed25519, base64): GlshfZVX8qlMhAdJc1EEWympeBHAxkjENBT0w6NRqBwx2XOrYJFgv8zHu9zcqq0Bx//e2heKZUIWTd/rOVpMDA==
Merkle root: 05cfc62de4d0c54d5988c234e4de0ad83bfc41ea25849dd9d979eded6f322593
Merkle path: ["02e6ca3fa7e9fb1dc43b94ada4242b90227466143b8d1df5e1b58f04b7abe3f5","fb2e3c4c10d86dba6b3a7082450e0ebdea185373edd35f89e5db6e8c92fe0650","9cb57562e7c68193770279a13f30f189b0042b86b7b4d04734e7c96a905745dc","596459c932a0e0f1fec1831e9581a99b3c7692e9b8b294478e7d007cc3dc5344","343ec152d7961fb1efcd5ceaeeb91a7ddc4b03115b0d50fb30a854bbd06173ae","a66ede3dcceb003e5f514d50dcd9e1fea99b7689929225c05c6cb78f41d2553c","64560bf7d011f2f1a527d7d823752cf6824a06cc9c5b40bc2076bd89942fc30a","6b7de70c25fc70d3c7d7957327aa1182827bbdae362bc7046c5ef5d6db4cf219","1b0c2921b8c065e75d9ba281faa0f344e93a7dc3e54df18e0ee981c0021ee675","24ca0b75807d76aba4d46e3d5a18cc94e8df1204d6607c0a2dd3c26c9695b31a","065729d96395e304fddfe27eeff74b8f1f0d5044a256599a2f899b5336b6cbde","c10e7a497069a8ad0d43c03574ca1525bf4e3c77b72778d80149d53e277da637","63be509b3dc15b74d2801a17187772630297b93244215543f157cb4be936b8ef"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668908157 · entry 108e9186e8c5677af58f…
Expected log hash: 554a3bd1bf640e4c4cee904a7897bcc74cb572b6d2b741111b4ee09cd6a9dd1c 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":"v1793707394647","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Es ist teuer für uns aus drittweltländern.","rating":5,"review_date":"2026-06-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (05cfc62de4d0…), 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.