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.

“Der Reader macht was er soll, ohne Werbung für Drittanbieter.”
Google Play · 3/5 · 2026-08-05

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 2515282333

Proof data

Record hash (SHA-256): 797d5266d0a6ae5293b4c14a5432036a418ac8a62e3e3b5c5943414ef68c7e4e
Signature (Ed25519, base64): UU98ezYoWOzezumsEujN2mItVq72ZCihgqHRkc8ZTcOaR5X6mK9/XCRaodD5TYrGCSOrm2J+/qpwuc9QbB8TAA==
Merkle root: ccae92ceb3dcfba104788424188fa34a8cb1410075ff6c1a21fa513e89f0c4fe
Merkle path: ["79796e2d99773ee429aa4b536f4c9f9faee2e20bea61126db8e9d300dfb0af7f","059d58a9ce1d6c4bcdaa94e9094472a5a1af50a27583465d3304d607a978fa7a","75a5007fc993872163f5ed225004b7d29b25c8fdfd3c2a458db89e37bd27f836","08394530bda76880564c59774b99a0b3e1577a96db32dcfe937b0481f0113bab","a438fe4b4272d210ebde077fa2f1fcd27da4502d8a1e569adf9f8811d6874e54","c04918e3f0089f76ec35b0cc02f602a4ef18395060aaf53b7eff6f62123ec3c5","b9e6de6d47e8efe405ec2a59c68afa07334e250d2b05aec5ca2b2ba104f7699b","706944c2a9abac05888dd9a4cd7cea87e98c8412505bf8c2fc9ffa9e6eab230e","f1f191fd885b8e00951126c62dc7fc70fa7d98aec7a2ea111d1c97bf92486d33","429885689dd2f508fe889ad1c30f80627a56338a457206d8e9605616c2e63dd9","a9df9f526e0a507d20ef8f6e003e4476cd3110a9def44c07501ba1d8a99704cd","bfc394086b825672e160b5b92fd378af53572fbeac6ebc2549ff664ccb1ab140","e472864955793aaa2d19219057558dc2b6f5214abf252963626c32870bd50cf3","35f1bb6574fe343de1c8512e58fe7937cd8ac075d63d989ecbfbabdbaf4d6344","f73291c2ca924ce4b3764e4b6ff1da65a701069f04fad47c52c8b693a0ec7e41"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515282333 · entry 108e9186e8c5677a6652…
Expected log hash: af455e73500113c158c8df9793eab703ff863c9c98fe38560752c9a1772810a8 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":"v1787139531268","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"Der Reader macht was er soll, ohne Werbung für Drittanbieter.","rating":3,"review_date":"2026-08-05","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 (ccae92ceb3dc…), 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.