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.

“The layout is clean and user-friendly.”
Google Play · 5/5 · 2026-08-12

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 2582700609

Proof data

Record hash (SHA-256): 1a39732628b42e0f1c3e1dfe2fdb591d39a45090657b9a1258a0df059beb32dd
Signature (Ed25519, base64): OBCxm7arWC450nZ93NtBO+aGagm7Srl2mWCJDNl/QYXx2YSxPegSIGuIvWSGJGBKeYyl7k5t0Layru4L9ZUKBw==
Merkle root: 653f52f612dd7654074ec2f50a8258d24363de118d24fd3fbb293c3f9466146a
Merkle path: ["1a39d8f16c6bb98c277e167a1f71448e14075c74455cb3491f6cbf4360c009b2","de91d2328730a6a520a2811583dcc8cc6f37f0e7a1d21647cbc8ef438ac0a4fc","5dba21c99810e0800f143d4ce84666322b8d37344f8714fa8345168fb65ba971","1d18fb82202a4b82854afefce4df6bd77b041258adb892676fa73bfe013f3411","61bdef0977b8f765e6888c0564032fed67c110a5a79f327cad17849ff76bcbf7","0e6a24c568e17382369ec16ba9a50bbbe6a13b7f78740e54749c1fa1ecd984c8","ca1ea8f0ff9dc3f1ab3825da5addeb0364e6678fc88d95f7dee56173ec2feb57","c5125b46246fb09ecb254aae1997778a2afd8f2a35e83ddf7551c8f38700ae4f","a8d35b4714edaa35dd9fb72dafe423ac2633b047f1601222d12b56b80388e7df","e525d4c7f78205e859c6e837a2fff9a302541a3d372ad279886b444b6cc9f131","ba00ff900dd1d3ed3cca4fd2a8dfccdc94c0ea946db8a617f9a26a3a2b325aa5","cf664546f3d5960a491d8826d5971a76d73ad56aa75c844aa8b88fd3fdc1822c","9fcd88f1beaa69d65dea3d04b431d43ad97368c1462c24ff050124283ec46f78","88e03340b0b23badae5a3021870a121b2e386f6ec4446eb6072186f7c59cabf0","5fdd4fb85b0ec398c42530ef65e986b74edce2f5c14068ba5fbe6a72c94b89c8"]
Anchored: 2026-08-25
Public log entry: search.sigstore.dev, log index 2582700609 · entry 108e9186e8c5677a119a…
Expected log hash: db705c1ce83f047166ef3ebf3406f1398f685221ea16db9703eceb49a1163aa7 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":"v1787633403760","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"The layout is clean and user-friendly.","rating":5,"review_date":"2026-08-12","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 (653f52f612dd…), 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.