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.

“My only issue was that when I opened a PDF with filled fields, the fields became blank.”
Google Play · 4/5 · 2026-06-26

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 2683384390

Proof data

Record hash (SHA-256): 3623c5a4090faf43aa7c569953739df5861891ada6b1f0692372208768dc7f92
Signature (Ed25519, base64): o4g8n2YJ3f0PHsAsZfBOnfvJspO5qkbUzMhcD4uI9UZAT64sjvjtCwKv/6eiStsvlvKnm6TpglvaQl3OemqjDA==
Merkle root: d4c4aaf139801abe64089c6a646a11881b578559d9cb7d88d2fc9332bf4b830b
Merkle path: ["36241e795637ac6adf2a725e08a154daf176f519605c47663241234880c482f3","d4f3fa218a08f824ea42493965c45e27c87ce9b62973f5e068e7591f1fa3b16a","5d1756c5e990a2343d41f34e8c1df2734edc404ea86458dd7848f98bb2b17ee5","ff00882732eafd4720d158765bb5867ee08155bdfe63416f00d8f72afca2c60e","ec075fa312ee24f98d043ada2eaceebfac8a47d2669df51c0669a4773d0c727a","3573fe01bd2244cead926206f12bc72928f991d7c9602079fd0d10c2a1f66cbf","1899fb6df4495c85f4b34f66ea063a5f9df67ceed1a944bfd069cfa7e9c62f62","dca91fcbfabec5550ad9065a3ce5651f95f818d0dfdadbf16781eb17b0231440","f72d28a6a9cabf56857f27e9ef7ce58fcd30d399acb07d66303bec46dd0e62af","d48b4628aa6416f2d53de0ae917a7b209a3335bd8434ed39360c98e1f1327f42","d7b58f35b1b1ce1b12e05ff19f760236967963831206b2ba1404662ebeb8c3c7","6fbcfa4079d1058a79992b8d9a70b2ca43b8c2bd2a205f5f3c6208c7c4ed37d8","ffb133066a77f2e306bdb0ef8734103e8fd9fe30db508022f3e02b358231e536","ef527f45d797e2d831211fa20aa17755e8de8cd626bcb27abeeea7640d159dbe","9b3fe954f7b51d7ce6fa763f00e1815ec4c70f892ca128b9deb83a2e107b9fb2"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2683384390 · entry 108e9186e8c5677ab9ad…
Expected log hash: 911a6ed7ed419f928c9567229b2f9168f943e91a3951514581f7a3ba93db232b 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":"v1788324112523","kind":"published-quote","locale":"de","page":"brand:pdffiller","quote":"My only issue was that when I opened a PDF with filled fields, the fields became blank.","rating":4,"review_date":"2026-06-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pdffiller","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 (d4c4aaf13980…), 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.