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.

“Man kann aus der App direkt drucken”
Google Play · 5/5 · 2026-07-24

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 2514654467

Proof data

Record hash (SHA-256): 6259083f32f14730c0667a5ff2408865f963e63d1dd7e297bce8d040575ddda9
Signature (Ed25519, base64): PT4Ss8UHcQxgweu4qqClpL6SlJ7Myf8qgQerhgGK97rWT/MutDaHmkH6wm69ZBP/UWv8LFRPlVS62sVUGFoGDA==
Merkle root: 2030d4ef17fc68fad1320305cf569e85a00baea931fba0d3ebe628cf9c90c35f
Merkle path: ["6253483b1ef8c62214cde4ad917d2f7f88f29bad6538ed99f1a86c409361e630","a7b85f8c882987d6db92fd33fce82779ca083eba3da19af599692509c43c1b11","be9907270eade3152004dc541f88a84b2a64a8d1a0bcfcd4ce058cc51b6f8cb1","05010df98213054c83cf873d2010b3eb1f0b2c5b2b3495ee094202c8aa211297","7a1e7f60f3a86b2bf2bc2d0815b55885e5aeb92f6c02c3b2a6ff2515e476b4a4","9b34348cd27e7a24b1f15ae8e53da5a448e42f457bfc11794bbd1a1a76f212a0","37fec61f693a6aedd9708216a33fc3d672699838d08644faf801d1368dcda037","a9ef7962c37a57e2e6a50fa7d8378f07f95e307c6da6682d5184cb832f654c5e","a80a143f47c4db775682ef02405ef82a7a7fed1230d894bfcce880caa2a56689","232129bc35ed7e19d7b109435f936dfb31d1b47602469de60abcc194bb9d7b6c","9ac7e8cd1087d31d05625119b520b1ef853f26da43148686f30e3d8acbd6a3b1","b5e26d43533a4d1b34d97519818e82aacb7ada756d4442b9f6734aea12f7f6bf","5e71e1e70b37a69afdfa58b6c1794925a5ef525370674594f74ea1403dc0aaab","22c95139cfdc78a2baa7a8e247bcf81329645beab990fc5e095abcbd46515e64","e362b663c2c1f5a93380a04a7aa41b42f4bafc7f870e85cf63803f76c744c486"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514654467 · entry 108e9186e8c5677a9253…
Expected log hash: ddd8d6dfa3771a4106292f7bec674337dc9649465b28b118bb17bfc2b8ff0a67 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":"v1787132872903","kind":"published-quote","locale":"de","page":"theme:acrobat/ordering/de","quote":"Man kann aus der App direkt drucken","rating":5,"review_date":"2026-07-24","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 (2030d4ef17fc…), 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.