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 app cannot be installed on the iPad Pro.”
Google Play · 2/5 · 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 2680681799

Proof data

Record hash (SHA-256): 0aa5af518b910be35653f4e24972229b9ebd88806819579e1692409c69967fcc
Signature (Ed25519, base64): vLwn22WpD6VsOkKNFUR5RnrE+eKRxbQmAdL/AvcsM0K7u38kFqD3ptesQJUpKh0jYg9Y8OYwt62NZ1jHt+8NBA==
Merkle root: e880a518ba68bfe85ddff87a241b258528b2896d8ce031c201c4697c0b7d2205
Merkle path: ["0aa599d075ede152cc965295c2be054179dce4fcd9de6a9b41785caf9823ddc3","a677678a5d8f3aff3aa50c81229406e058b064b26808719e9e678b2047a3994e","8d6f9d75f7323c3a0ff778303690ad283d556f1d23201cabb9ad560f897bd0e0","fee6fc6b0ceb4d798da44e6efee810a576681a2b29cddafc06f82fd72a871dbc","1a6398c3fb2e6a4d1911719ce41c81083ca7abbec77882629ad8d5610f05ff2b","f741f1f10740d3f1224ecbc6f0e32b667624321731dfabc45ddb26d00e58cc00","21f744e67afeb88b6688317b9b4680c008f19f37d161a4df96aa9241d01c9130","4e23184844518aaa5bb8234a9a5e68587866b9a2e7879ce1817759dfbe0eaa75","f34d7398999fb5bc04f993e27a7d0cc1c62a970373034e4211dc66ff78b0e29a","805a618212de9dc49a1aae9e8ad4d899862ba71d59c5eee463eb159179466632","d2942e0ff67552e3de0560c6bc7d63f8e2e8772154309651438c23ada5551cfc","8abd4d5b06b87286affaa0cf89ccbc72d6059bcba0e452912cc764aa4f8b3a91","0e6818b49626845facd47486279f7e4a6689ed0beda657d93a969ab184e1e0de","8c997d59f41540bab49c6414578aed00ec9a73fd31959523b43a0af5a2eb1e86","269c643459740a67a842bbee9fda4a35b5098a4f015e508a69431212a0912770"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2680681799 · entry 108e9186e8c5677adf7a…
Expected log hash: 23ab6878cbb153d06d6958de44ea3fafe32bd61b03ba95bcd26de9e09248aedb 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":"v1788297623062","kind":"published-quote","locale":"en","page":"subtheme:proton/ordering/setup-configuration/en","quote":"The app cannot be installed on the iPad Pro.","rating":2,"review_date":"2026-08-05","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 (e880a518ba68…), 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.