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.

“It works almost anywhere that asks for Goo.gle Authenticator”
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 3305112589

Proof data

Record hash (SHA-256): 0b86b3e9b43065902f511c4f668df3b9c5ab621ad20a0b78deb1bf6c5ac98342
Signature (Ed25519, base64): Pwe8PtfVZQ48mAQrE8M2PCBPdrAzZbz7TjQXPU3wTwp5e/K6XfQ56Wc/M3MUCmoL0fJr6t/qxRHDf3wPrq4UBA==
Merkle root: 55117deb4ca8d37a678ae0a073fbce195c324ce5f9e871ef967256fc521a73a1
Merkle path: ["0b89e0c3b63f75b02c8289a0004e04d6e01b681a788bd91d2e5b289ba2443c7a","472ffc7fe52d02c5b1ba64927865baabca519aadc72958181a668fbf8185986d","6e364255bd81a33c053f88425f749f1d4791da1347c0acb6bcaffc318cea0e57","34fd560daac7c31ccd09f606ecded7affa873ec78ba20d5bec09e2b497a75f03","8844e8a1e1594395b511982b50447317a57a14b7b921c694091828b621c59908","7203a6c3d3ce48ee1f6538b3caba720f96f1ca0d1c3b3114634f7fd41b989415","eea64eb7af57a4ec53670d1a468ccb5a9f1aabe360de53fb2609b14f87ea6676","558c6a179fa43fa878da803a224013ec24b95bb8c1b7d75893da8573cf850d2a","3905f7405414dfcf1c3dacd3074c0c11e8ad780ff4c20f73ef36c2156cf50bff","48826a79717dece50393908c97ebca735ca8cd935189c60861605728b7ad4757","535b6abf2fb18dd8b74ad7937f857e29bb5e4346d9f2703c382f726f073ab41e","0748f9297c4c0a3720af131f4ce2567ebed633099d330f968f516c11a8f0d4a1","31d8e181a29f89115c8305b83331f09bbd2794984e0617d17f9e5a5ff069102d"]
Anchored: 2026-10-18
Public log entry: search.sigstore.dev, log index 3305112589 · entry 108e9186e8c5677a5aab…
Expected log hash: c2e7db559e4d5e5fa814daad663a532ab12f6caeac67f681385f7a90ad7f4355 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":"v1792292562366","kind":"published-quote","locale":"en","page":"brand:proton","quote":"It works almost anywhere that asks for Goo.gle Authenticator","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (55117deb4ca8…), 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.