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.

“Can't even assign documents without paying.”
Google Play · 1/5 · 2026-08-10

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 2671985937

Proof data

Record hash (SHA-256): 1547141fb4ef22928c73916c5fd94dfec48daf1a13ec747a734b0ae82e0f36fb
Signature (Ed25519, base64): acR1zr/8wVEh6miBdEf78c4N8aRaHSGjnWAyyvh2kb5l79ioFoQHT5fNUIU0Wct1xFROLlNs8uiXxk6XE5MvAg==
Merkle root: fb09dbc79cd836b1d85124e5c45f889f4a8cee2bd2a4f93da34de8effbaeff27
Merkle path: ["1547b6ccb09374fa142a7084894091e69a4e506a2e63f5bfcaef72cb34f6afe3","098eedeca3819caa12de8936c83e7d7227e7bfda71fe1c11fca657a9f3fc44da","86eee37a6011840dba4bb153e4ade8b714d61bfe41632a4b4490d480d437fec3","0965c34fcd42042f2397d75885656af1ffadc02bfe0d64fa20353adb3d137ec7","b1e1d4f77cafdcd33b447087619aa1f5b3dd07c20c6eeb0bd28bf59811dd8f28","0f2d32cd09b762f923f54cbc1345496087c491cc771e3b4014d50ca837968feb","60049f088f6297c6b7a10a1f4f00649d6bc12c5763304b585d3b064b212b9643","7267a112c89e454add829e759e70e5d3b19abd9a4ef39498a220e5bcefdeb078","4e52c00ef6484f762b6ebb7be7092fd045ef064b5f2ec0ec61f3756b9ba56d6e","eb44f67e005bfe476ce955a6a8f815762af1ac19f1737dc784b19aaef12f92cc","92969b0d126cfdb1ca355f068a61d2e1f58258258fea9a698452ecbdb91ed99c","b7026620eff1301525ef293efce182d3113aa9218dd88b19517675c383f2d8b4","7637c7d2d718940e0c1978ddad3180208467c8a8d14b3aa539f41f8406f85974","598e586ae65f83870b6b56d7041a4a16432f04a124836b885f1eda80da5ea2d9","015fb6cba9f4a0c5e2fef4dbf7406ea747b003f2d75f764dc48e74713a28c269"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2671985937 · entry 108e9186e8c5677aee5d…
Expected log hash: 21d04dbed3f9dfa348b1c2e5bdd0c177d7f26175563f32c871f3a55c22274c31 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":"v1788240889164","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"Can't even assign documents without paying.","rating":1,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (fb09dbc79cd8…), 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.