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.

“Enjoy this option other than Gmail.”
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 2594047033

Proof data

Record hash (SHA-256): 121857e923e337aae5d4aaa1acdeae84b0301137017c797fa073b7ec2af20d54
Signature (Ed25519, base64): 3vOPzGhpQwFDG9tveW5o72Y+ChWPfObu9pezOry/0Tv3fUYHZ/NNwTFFRPJItk7ks1b3/WLMZsnSB9gYRAfqAg==
Merkle root: bdc4b63265a70d38726c98a51a2f6fe0c825529e253e2d0102798be7f72f5677
Merkle path: ["1217c87a24913771c12624b5bc30f144cecaddf4f53e9c6d1d1991eece3ff0eb","0e2819c766a92826d3a1158faf71a89f739ddc0e21a8f07e2d7634c7337b5387","2e385632146172d6ce371d2a039134b1d5f27f2210cc306d68d2eafb7c7b02d2","c8ebf310f17c3472a81339148c073b72878055369f31ac58eea44addbf6b1865","a2f584956031c6f61c44e7bf3b03f7060d844c1213d046a412b356f33028bd56","317dd818b230a25bb6eff279ea68f6264e4be527522e4c5daa962fcad7b580a0","e039692d4da6ebd686a8cc4d2e3d48e75117e2a05b88503b857d7837d26b5630","ad77908246f49f32037ea10869466b44eb39e87ac2edfe962c9bd6caadfec794","d1155d31b9d647cf83066367ce49ae007a6e4a90fc9be2174d032ab4a9128abe","d1ea74884289637b3ee3444d49e393803ad0d1dadd2f88a6b48c2e03ab68902e","c5d822b4b5e1d611606d77b5f9a12a7cd55104cb2c1ac0425c282e04a35e2570","aebde396b6326cd6ef4fe2b336efcca55f425b58989be7e1932fe8cca3b8e79c","feb0254887eb1282778baf7c368a0b78d207e266f585e8fa28d1d23f1aa1f260","96c364e4fa4c79e3af24942939468d2bc4e25e66deb751a5352efb996b7fef36","c0ca68b26f34d8d7dffa9679f414d4de82a713164fc00678d7df4e235b1b6509"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2594047033 · entry 108e9186e8c5677af479…
Expected log hash: 26ef5711a6b9de6fa8d880c18fe60f9d9918e495d6ecb3bfd46317eb69c9ba91 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":"v1787712098188","kind":"published-quote","locale":"en","page":"product:proton/proton-mail/en","quote":"Enjoy this option other than Gmail.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (bdc4b63265a7…), 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.