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.

“best website for editing and reading pdf's”
Google Play · 5/5 · 2026-07-10

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 2542342116

Proof data

Record hash (SHA-256): 6bdf3a7b5888da9d126f7458ccc0df975e2a829d93996c26340d244f0b3c8d8e
Signature (Ed25519, base64): p3e1+7zeT/TBJYSx/ytXFGeZ2PzDStawbQ2eslFhcAjStG1rAyoCxvDTTGaIEtIGouzaKXEzr3Jd6EbTIgGPBg==
Merkle root: 13d851a0949e31431bfa3cb9a632b995c3cd1c62cfaf1eda783bd9224fc47725
Merkle path: ["6be0151cf9a2b8a0a973912379b4fb6b87305aaddce9954b0a21f216813b4e8b","c8b3b3b4b17a4f187e50994d5494e2b428efed7a00be6172a784d67b9ac93de0","854b1f857e7cbcb984d529eabcdf245e910d59923dfc2119f648556afe084b5f","493b21d5038173a00773e656cce8d2fe023148ffa3bc9dd409e0f63d59534e5b","7f984795f6f55f669a89a6522bf4474316f73cd3d7903f4b0175f4d1532a586d","300dd1290df833560c321e9f6f85bbb96e611d37d7ab8bda1e908b98716cb647","f56750c5e358be3fe57c30ee35f30877ca69c9ab28013bda8ae20eac59f9e0ed","a00dd042c8d2c43acfe7adcd997839990f6c3a5e65ac84c3f68352af2cecbe69","db463f0eb6d7c9bcb82c2f510fd17fe6e57f50d44a3c740548fd42633fc9b37e","90a41a050d122b674b1da16427c82eb02e6996b707aa750b8855c1387d2641de","4d9d045b34f5b7672bc513284ef1e8c359d4682a872efe9a6e6830ee2c7ff7ed","2e4cc4cc9f254585d592ce310b06ef87cd96eee21f75a167ff015e1181264220","a85948d94666cb760325015d876c34467e4e9a308fd736b88b45334d957c084f","8794a267e94c305c4d11faa8a55bb3d3523fb52e75ea5ecdc366a6e906d9f7ca","bc9aae2a90fd8d311435fb1459ac7953f7f2923aa1b697bb0b40101796e3503b"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542342116 · entry 108e9186e8c5677a49dc…
Expected log hash: 44bd329b5c5f42e4fbaaab1e9a27845aedd26351446bc96ba12b520a563b7433 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":"v1787279544668","kind":"published-quote","locale":"en","page":"product:xodo/pdf-editor/en","quote":"best website for editing and reading pdf's","rating":5,"review_date":"2026-07-10","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 (13d851a0949e…), 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.