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.

“Thank you for the application, it's very helpful”
Google Play · 5/5 · 2026-06-04

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 2647299953

Proof data

Record hash (SHA-256): 0ae2354c0bd5de5bcb4249e68f1642b721607d464f9c64d211ecc89d0cf763ef
Signature (Ed25519, base64): LpznGh8Ozv3Vn21Oy8nSu15YRcuRLM9y0I7Fomk44t2kz/4CDkIQYQ4PNA3m8V5mM9ofxS95+dQvpXZctF5uAQ==
Merkle root: e650e75fd77078528aa305533eee5d0a1a546628fc8516773e724c8dbfd143b3
Merkle path: ["0ae31dd34caae2ccc3d4bae2402ca4c1d44e64d749faa5da517da95c768a273a","dbe2a5d16927935de5f13079534117161dea66f2b3ee26a8e55da361692cf43d","09dd343e78e17dad8b98a0d01f9e741b01a6e4681b8c2cb591a0125645340501","337195470241da0de4135e57ffbaf537a01a9b768c7fc176bf522b22055ad894","42d46d3aaf3a06922ad7a29e9147f2206881a1c258ae9b1f45a2e9da9f978f2c","6c5383f21460f86d926cd16b0494cbd3b68209bbd17cb3068dac78d7c3f946db","8f5288f46de6b0843b637265434a0a8038901c284724efabf08bd42cf7d1033c","9b7278397e6e08d59b9cffe0c033c00348dc745421a304f1dd45af8572bffe16","48146c478d7e83a5a9219114eb2502d05101fdb96ffb5a09d5d9b6335d2e30f8","990a175807201d3243142bc77255ce1e9e5bcb1b0c14f38e5e2308588630a301","d091556122043933f3541ce9698baf36c60a2bddf02ac0e7aec614d9f6274e7a","9cbfd3204b3e2f5027edc155e8333a2328120eaa38808f017553940b835c0837","03229a02d4ef23689ac574ce2fdb2e91509dccaab3854dbfc8d9e90af4ef8953","de4b01acb55e434b8077712a3cea8899c69e63005b6b5c436594f06bca9b060d","bd662811507e1e874bc6ba02d614a311af652dab0714938ac7c98aadfaf42cae"]
Anchored: 2026-08-30
Public log entry: search.sigstore.dev, log index 2647299953 · entry 108e9186e8c5677a1824…
Expected log hash: d76177f6a64b24e24552f49a73f627dcd7dc14dd72da9a30f95c027c24a50fd8 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":"v1788057950482","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"Thank you for the application, it's very helpful","rating":5,"review_date":"2026-06-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (e650e75fd770…), 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.