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.

“Up to 3 times I was editing a files then when it came time to save the app closed itself and left the document blank”
Apple App Store · 1/5 · 2026-02-15

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 2611910343

Proof data

Record hash (SHA-256): 0af928c9d6fee9aed7b1e57a906744ace82aa43754915dfce62bb310d9c045cf
Signature (Ed25519, base64): +h9SMTlCJXto0q58g2YdunSTkL0jysp4L2n0KYy7W3apdoqTOjFdXBnRATSMOsBbPNRUOp13z7cyzafVg6aCDA==
Merkle root: 78886eed79c5c55077432ce3df8d075efabb6513370ceff84d7b706b9eae04c7
Merkle path: ["0af77a4b823058bfd358a42e880b6672635475ad08446262c55adc9e3300b8c9","9eaca70759f5d527ebb43e77488cb3eeee8792635b5c5a69002528f59a457c96","840faeb9c8052f3a493cc64c29a2d62109d64a3d6e38cb6f2b721658db5e9f2f","bce06a4b4dcc337f5287160fe0f74c772a5f6e4b83cbc9aa2c819f474a76ffc0","27adb7aefce18381bec99ff81d44925e67a428b7a0c7c95cb5c9a570c3bb7fe1","a185c5390e48acfcf523fa9456db02e73bf9cd2e58a3426cb17b561f419075a2","2f01ca1dc28d9eb541384ae992641731e2d98f5dd58b571d6ef9c3848018001a","52901569131731d26f1ef47ed4ed338cf18e20f3a0842492ee0310d5691f5d83","c01bd65f293d8c8ba398de4185254ecfde944aff196588e0da5584fba6bbb561","934bcba283c962f75e1c521fe9660843340cb8dd9ee7c1018850e33262e09a2d","f2316a6854ff9fb83b1085d3455d89106cefb01f2684c4489025e5d0a411d032","d91421428fedd26e7cecce1d5e33ad568bf29352e514102640bc5ad56ca56783","9fe048f55ef1db993b15a6e86f672087aa43b92600c87c54204aa5032ace339e","dca3255210bd4138ad43ee9195c33d4e1bfb62117fe1834a1314b7522fa9bfae","4799bf594f7e0d9e563de0da432e35b6bec9a5a67d166463ed76ae787b7b69f7"]
Anchored: 2026-08-27
Public log entry: search.sigstore.dev, log index 2611910343 · entry 108e9186e8c5677aed98…
Expected log hash: 357f342aabcc9f7336397f12ae873d9647084d84f84802d1a7af0f5727328ea8 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":"v1787796746663","kind":"published-quote","locale":"en","page":"product:smallpdf/edit-pdf/en","quote":"Up to 3 times I was editing a files then when it came time to save the app closed itself and left the document blank","rating":1,"review_date":"2026-02-15","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1485259500?see-all=reviews","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 (78886eed79c5…), 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.