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.

“An easy-to-use calendar.”
Google Play · 5/5 · 2026-05-31

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 2789279696

Proof data

Record hash (SHA-256): 5deafd1cb682e042684a5738b7bdff4fcaffa1ee5b9c8055a3267e85247083d7
Signature (Ed25519, base64): sCe1rYXTdHm3TgxQKT/TJ36G801+XfXqI2FxN7HZ76X0AyAFJ8InOeE3IjZ/dwAMtd0z4ArHj1LfIV1+NZqvDw==
Merkle root: 97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d
Merkle path: ["5de6f6bac9e16efc238dd80ffd2fa8cb552decd971a525bd59e34bf2b520a42a","06ab876500c8a8f3fdf025be89c31c25d94f2c9ab9b875717bf7e85f4748e37b","8aaba357b55d732f1aba55c9a85f8d1faacfa5fdf1ceb043ef37a96fd5593c27","0f112e11b6fa94a5cf97aeb301f740aa1a00650ee875338675265c1e14e8d2b7","a4c57e9c990fde04de8089c9aedf833960b59b2fa3e2bcb779a47f5ce21d1310","a67c55a433bd0e722c32e45926f89547f365e8fda7f17dd860544d478812fecc","f594e9d268a131057032ea10962aaddccdd0ee681be76a4d139bd3da1b38dea8","7bb051d51c900dd3960926720cff3968f4a9a201c78911d896c8092fb3764872","9acd6aa4a14619757662204bc900d8eb2a9d0ce721a5d5ce87cd82466d68c139","4c2af23fb12c5d6a450127251aa43eca70b40c3d6f6293167efb30c5276a9227","2196f217748a850eaa5fabc558b411155d5e5a90e74d5991bb7a1bd20efe4d14","36283db7bcf119c11be277705ea4507f983056a8ea68a309c763a3cc8b414991","66d13e8b5300f6cf7ae49f9f9692863758845bb98773f7a2bbb28032eed5ad1c","90e3c3ed08ff9f4dee6683cf95bfff311f4715cac07e97ca75ea5b9bcf13efe4","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]
Anchored: 2026-09-11
Public log entry: search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…
Expected log hash: 05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/fit/en","quote":"An easy-to-use calendar.","rating":5,"review_date":"2026-05-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (97eb1062a862…), 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.