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.

“At least one forced popup every time i open the app”

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 2541942774

Proof data

Record hash (SHA-256)

63727ff67da97b57f4a282ddcb4b061596cd6f08a8d5bf0f85a9d621bdc1d50c

Signature (Ed25519, base64)

agTHH3+IU5P9mdSGFDX+cdD3/wNTOSCA414nognKkbuH2OW5dFv6iArdjPHR3jUnKnx0SgVBEpsdm69dco61Dg==

Merkle root

0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91

Merkle path

["636dab300411160dd88792eba805469ef76583d9283e70f946db3ec145a1bc8d","c7595bbe079d58ee0ba1229ce6ec930c238553e1a131d07c283ba0378befa8e6","06a1313d8c5d886cb7be7d2102e370a6cbaffbf44240a6f84b0f78b92fc3621d","dba1206bb36a9b25a9123f3a1fdeb4da5afc9767fdc23baa260d3987a795e3a0","fc5338fbd52b753818af60423aaac1347f09c69d8bd498f1e49d73c42a28e646","f38a0d4861b25def91303c6023aafbfcb490404db34727c0fa1fda7c9750cd27","09a2bdf9990226c403c6d1a79e5c5a8cae9f92042202e3bcda6e2fc83a4b36be","f5bb81553536700950bcab4a7edd4a109d81da0a96d4fe650073d54f57ef910a","be041e1639f75a3339b009d53881387e24490c06e678cb0bd1fd1bae78621149","03b06e2da18383b85249d3f12b1dd67391e2654f43ff9d0d372805c92a3ad571","3bb33c0246a29f236d592e7eeea8842f1f7d6031eac0445b3352c64c0fe253e3","58a6e6d87e5abc2ae84c16426ac7ae57aa4ee3dea4aa297d173e96c213dede34","bf9364c8f07cc31dde92e8fa9e328df950308aa505d76ce4973db2a6f71840fb","e612bf3863a4ca6db004d49df9b16b869da6bd7612ef55762e23c722f5ffdfff","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…

Expected log hash

4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"de","page":"theme:xodo/ordering/de","quote":"At least one forced popup every time i open the app","rating":1,"review_date":"2026-05-12","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 (0fdf8a945cf3…), 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.