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.

“Terrible. First app that I could not even get to work”
Google Play · 1/5 · 2026-08-14

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 2612065734

Proof data

Record hash (SHA-256): 0c4586dd98d1fbb3cd3380fe224b9682c101cce99f0dd8d2fb810eb5bd2312c6
Signature (Ed25519, base64): sRwD+VjrR+veBW626UrYM+VEgUoq74jtYojGKtqnagG4zkIw+7DHzViGFHXMNZ7rupqgj/qKN2QItxhjZ0qKBg==
Merkle root: 62493148956a8c17abd53a8c9ed797b64e65ad5bb98d36b7aa8d51c339fff025
Merkle path: ["0c455d5e2481742ca25d283d72a7b6642921b1437c0887b970704a87abcc1e78","b7238d0ecf11ea919eaf98d4b34b4b3e0fa89b6470f968287d554ae2d6f3e662","00ce896cbd867a9c01a06cd3ef6b7ea189b560ddd0f50cd8a9799de09723ae1e","c8acc177cea2b03c8e19a5955ba962b6548fbd4ef5105d1f6c561696c8148b63","ee9ee3d02ed36356c6efc02ac14dc2c90dc27451c0846a843c88b6c432448bb8","f7ad33fc6219385777065ba30880a44e7cec3843ee02e12b1fe0950c835017bc","5249de308eefd289232d1650bcc03dadc0a40e72824110a8c986872ddc059047","26c5da44d73a0ded49e462c755f5773fe3883c0a92290b0c30588c8d7606f58b","236d3cac96ad5d11fcb7403759dbb7a5f20c5762e4871ba5a3ea17305967ec3f","06eea9849e882ca69ba0d540af4f40537afcc231ecc38e349c3e3322b8410a9f","b0590550f11f33ed86fb55c9faaf0f398cd460e344dca34b97360a8eb25428f8","aa27e16e99a5c7264be75cc6d887e1542ad1b5d8e7c00024d09648982d3b9c13","0d5bfb2982eb496ec91088407bc450b593806e0482bfe81826869f4aeb42c62b","8c6d2c7076ac2ee0b8e592fee4b535c629bf4ba08a80f3d9ff8794fd682b8ca0","81ca6ab71bdfc38d6690336508e82bd1e82f9a656f0fefa771d1028af8c796ba"]
Anchored: 2026-08-27
Public log entry: search.sigstore.dev, log index 2612065734 · entry 108e9186e8c5677a3494…
Expected log hash: f8318c40dc89e43be6c4faea0c023b4821c7ae9aeb6f05e59b451eef93c53bdf 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":"v1787797679240","kind":"published-quote","locale":"en","page":"subtheme:proton/ordering/account-login/en","quote":"Terrible. First app that I could not even get to work","rating":1,"review_date":"2026-08-14","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 (62493148956a…), 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.