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.

“the minimum zoom is locked at 100% (a full screen page).”

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 2514383033

Proof data

Record hash (SHA-256)

f8d5ac8bbd98717eb04e423b7c81b66ce1a9e906129eb1e501fb9f7683cb2024

Signature (Ed25519, base64)

NFWb35zLEe8N3sRPyxRpKk9CyTpE3nzRWIX7bIzAJiwWpgck7DmguKrFZ8USxogeaMQK02e31B0Zicpl5a2ABw==

Merkle root

197f899fafda406e0c9d0591eaf3664c281655082dfd19c34045187b374127b6

Merkle path

["f8d59e7d5991c912dff1d0dfdb02daf5b868d2aaaf8c0d7da1045c046acd582f","352666f2834d6baa37bdfd447f834cf31b6120755d08bab0b9633967040b38c7","cb21bd89dd0c9f842e6005e6779d8e3aa04213ecbf49da258688419631d9902e","a4c66dd4646db3c72482927c29c8c2bac949d7a80b3d81e205c76d0b44c6eb89","e221708406c6034c5d2de5638701b0cb1196c48ceaa54e94df4df29cb7dc4740","60a2ce58dddf706df0c59f6ac7ba160d0cfcba3f456c5757f615f21d98298c6a","489aaaaf07c4fef80cf9505652ef5ca731fa27081b8e5189c65c6a00fc50cd8d","a516457dfffe73d064c108369d4153ac61f760eb53607bd2f2fc846916059659","52f301c8e14aeb6e106f2c587fb4cb25d3e1704e9c29cf85c815ad7d15ae0f2e","ef1fd7033e0f945134835f1d6ddf1aea1bbee043c0a5a68222023a70f6545b1a","83bc9ef2ec75491ace7b71f62c2952313f728808bd93bdd844e25afabc0a1e52","9c76d14f9ecad384be95e0fb9468ac610d3cf006a044c55960e95f654d5da9d0","9d8eb60d36f443bb134fadec774a73a1c6c1ee8363fabeb826b6d33b69331125"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514383033 · entry 108e9186e8c5677a6078…

Expected log hash

4e5cbdb3dc34f3dbd6a57b603e905df6c94968b41f5bd83d5c9a25f2ea060d8e 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":"v1787127398505","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"the minimum zoom is locked at 100% (a full screen page).","rating":2,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (197f899fafda…), 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.