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.

“saves/ shares documents blank”

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 2657230937

Proof data

Record hash (SHA-256)

1215fae2e6ddebca69e490f30e3bd73d805295ff4dbb038061d9a534ed18d2d9

Signature (Ed25519, base64)

5orPxsI2qy72t82AdXYT0CkRgIKnemjfbcvHtK5+YMH5JxxCw7q9OveUR2EGh7JLt1eLRWc2c6mIDKjZFmKaBQ==

Merkle root

2915d94fc718eb48f67362a65d9a83b80dcd4c926c786eb2e38f4d8ced0439b7

Merkle path

["12168e7906124fbb9894ce54f15ed20f3fc614356980c639bab66c2d3254f719","3f49dfdd8ea57216909cf1c40e5484a54f64b84709acfae5d8c3a927124c7d35","be4c6002a435777d34024580392bce28ca905a9dc28555b1c081795c73c1a5f8","d2f188ec25a9f0011fbede1bcd0bf778b6ca66105ff44a611ab359287fc0b6ad","f2656e25a6849c271bb53d44d7a9d9bf64caf16a950e46e208aae41bb5f472ff","0af48ab559b5a6375719c862e7547335fbd0a3297470a02c9ddab61b2e3e31cc","dcd623a552b8f7b0094fa595814d4773d3918538b8e2dcc4b0ae06a21023636c","393c28301dcaea41757d87757a9a10416a91bd071bb6c4e20676bd90a28f5ec1","c44af9189aa3bed89abdaead36c1d2780c1fbd935d1d0e78a510db332d87eda7","20c2a89a087b27c35458ee1ae6660275e9b8a489a84079110af78455e7062cd9","051ea78f9b051571a178fbf2ae098d3d2715039e8aa0e55b5a7ab058764b50c6","a67e5025ed174812cc85ffad7fb608d1ec0e7e7057369282aa8c38f78ecb6fb6","dbdc65b9f91ecf7a21686f427f84950f149ff3313cf7cdbaf938355c0225fc98","5b8a2081ec81ef2101256bd7209457c75dcc1be14257b40200d45a88003c0c32","1936eb7713ae59e20354a37b8314d3745433b23d047da205242414a6fea32b67"]

Anchored

2026-08-31

Public log entry

search.sigstore.dev, log index 2657230937 · entry 108e9186e8c5677a80c3…

Expected log hash

1d9aec1bd239e45b6e622f366eaab4292482e627111ddcfb4c651bb1e08e92ad 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":"v1788143889053","kind":"published-quote","locale":"en","page":"product:smallpdf/merge-pdf/en","quote":"saves/ shares documents blank","rating":1,"review_date":"2025-09-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (2915d94fc718…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.