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.

“Großartig für schnelle Bearbeitungen unterwegs”
Google Play · 5/5 · 2026-07-08

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 2647647551

Proof data

Record hash (SHA-256): 09c27553466579381418688d9e79fec150f6dba2494d490c9f7e6c4204b0028c
Signature (Ed25519, base64): v/oQCjS5eeLnSoRlPJB4aquME7H5CxdBefuHTFVSPLk2DURo3aIusdXvxePm4FeqDVzduN+nyAYCJt0ldaXmAw==
Merkle root: 6e81627552f2ac346e22c9eab513b5697475b3faba110f5b1d208622b33b78e9
Merkle path: ["09c2f980442bf6bbd222214c32a1bfa13261b4c8d206b9223068276486d6589d","fefa6e5b3ad5ad2e87c829cfcf507fcebcf7ef9a2484bf564f7e5644cf001e24","91c91e3d8bce38ff66482dcd67e94a8c205cc557735eeebfaec091ac29df4302","e8a382f5927dafc6b85870f64deb3f4f8418f715358e752e08aea894d16ab0a7","a4278a75b3bd1bb0e5242f422cec4b640102c663bfb02ef3e5ecd6499b428230","a53643bcf45be991dc101398f14bef0396678cdc401b0c1fc35243540d1b7362","9b1a8bd4a380a3e166b12296df8c8e6ff8db28e2f0df1683281c4d847baac6f9","4a6907b070e14a5c739a20d62167d408f7713375f56bc8491f63c6de3f925206","ac5baab643ee32449f861ab119fea3cd34a9c84fa660d47b8f5ae68b504fe8a9","1825de4b0c5fc18b41a770f44f6826db8eb5b2ce4cbd8e1ecf0b8a55e42504e5","6cc8b8e34f9c29f26f412853d50ddeb9f405fa59f35dadc77cd00574cf336c27","2d5b76f36d376318023bb0ddbd33722f1e6c2445842808cfc1c4eec244f77816","2de2337567418e9730d9935ac48504a2961df590512213a68fd44d97ca49c300","92865c042267b50b2e80a085961d6bc0e14e984b1b1736b31a5406d17d7c28c9","a140bb68429284d6b768e6e83ab2503eb3818b2fc3adb438e4e092cd869726ff"]
Anchored: 2026-08-30
Public log entry: search.sigstore.dev, log index 2647647551 · entry 108e9186e8c5677ac48e…
Expected log hash: dcb20aeec915a281d96e164bbd9aaff5ca0e571eaf509f60cc28a86099f52bcf 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":"v1788066004428","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Großartig für schnelle Bearbeitungen unterwegs","rating":5,"review_date":"2026-07-08","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 (6e81627552f2…), 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.