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.

“When opening a PDF from an external app (Plus Messenger/Telegram) and pressing "Back", Xodo exits directly to the Android Home Screen instead of returning to the chat.”
Google Play · 4/5 · 2026-10-06

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 3162293789

Proof data

Record hash (SHA-256): 17a7ebb69b171245f616671ddddf52cb61aa897fd93d1f3ef42b01da21159dc6
Signature (Ed25519, base64): hoBKGEeTvBAAk0Zt/ZtAaMCfdi0dzgmUUWkb0hoBP8u1ebIqwH85umBLJU0ZrQXf7BUYINeGukidKBq1IRLoBQ==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["17a796b0ff045ed459500cd5fc8215331e40567681050a171ce6603d28542437","a38c2761b1550bb6935e8294ace78dda9204f5dc92423f3ccc02cbed6d0fd309","e4b977b16aa0896c8b0f2d48843488a34e859451f59479e4cb08b90ca5f7ac8e","0c75ae6ab3b787a009c3b1e72d4d060f4a861c915675cc4a8592beae422a6e41","60d1fcec49b58cc7b0f7c26816fd48f19699ea0b4c690d0313369a1e51913882","7445c90e03a74c7d035167834c985cf34303ecb4707078815e0f0b6b99d235ad","9946b912106d4e23676b3230f1b635dd65a22c5f8da787f151ab4bb10b5685ab","47a07c48edd29e01bbcf435a1c7edd46ec57bd934ac0a270664c9ccdc54169d9","6d5d7325498f272a49ca06823133bdb423d2a16f929d1c7040a93a66c6824fdf","cf496d04bbbfd6727e92d40c5b1fa0c9043f26e438eda377c1ac99c6f2071e35","d1c8ff8c8bff6e1437d1d0b99928fbdfbaa656a852f36b4fef47a399f2e983af","cc82dcedf1803fb9cd4fbf2969503996cb7816723bd49062350004454130bee0","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…
Expected log hash: 49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"When opening a PDF from an external app (Plus Messenger/Telegram) and pressing \"Back\", Xodo exits directly to the Android Home Screen instead of returning to the chat.","rating":4,"review_date":"2026-10-06","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 (ab8d4de5853e…), 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.