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.

“Für mich der beste pdf-Reader”
Google Play · 5/5 · 2026-02-04

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 3138947147

Proof data

Record hash (SHA-256): 1f3e3727428b5cc566069b80121defdd38ae8cdd0b681e39385594ca66f77de8
Signature (Ed25519, base64): hmAhSNR3FIA49U0myN+wIOjujO8j000g0psc3ZbLnyU+4KMnnLfQE0WGgBZYNBl5D8DzNoFfFaftR3fIPEdxCw==
Merkle root: 1b26d1b85473caad1868633ec4c931eb970e81199eea87926818f3f1753af37b
Merkle path: ["1f3f43e7707c5d81be273906d3f3ce677581596395ec77f0c10d27408fbbcf15","9a229878acb94c4d755c486f840d38c3d5b5fd5339ccc2ee3df76ba66e2b4213","d4bc504f27a878aff1b97126d8a48cf1820ff4f8ceb471aa43aa3ce78f28da46","2cfa14f8b619c52808a1f4a00be152db166d115d02ab41d8f20c7397b26fa7c4","d9ad03b8011cacf73c331bf77085fc1338619ad8d2d3044588ce829ce1366f09","6071a3cc6df572c291aa1820a445a72359678c536ea1773a22baefca3198d03f","3b5cb587ab219e8305a9abbba3b5838a7bd778befee0e241ce3457067dd083b2","83dac5c58efb23e230ac2a7e5991e42382599aeb23abd5f38763d1d307e011d5","52ed53627b39c28e7a671b4da190f51799c6fc8a541dac3e1e6fd0562f5a7972","7c1dfe3771f0900539245fb3def65b194ea45faf7ddca10b6223c95c6e63e345","2ee8fdd9f4f407e526864a8ba3702d86f1097bb26b89614052b4ded4db8d4678","3e245e6d740eb81c4f09792f11d7fdad46833a72e13bd136ecc679eef2e69b63","0a715bd63526388883fdeb099e9129563e4c22e6bfb87e7eb3c16d297d4dcf78","a52caabaaff23a9dd211857be614b6dbb651e724ed1f53485e9621733590c1c2","06054c91b82ccf7b99bb6b4fcb7c60afa97f93295e6829b75e5bf1efe9493e63"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3138947147 · entry 108e9186e8c5677a2712…
Expected log hash: 8f66b765b7efcb11dcdcf57b81c46ed3317a5895f5b870638e23b76f1efbb2d5 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":"v1791425549743","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Für mich der beste pdf-Reader","rating":5,"review_date":"2026-02-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (1b26d1b85473…), 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.