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 glitched out and wouldn't allow me to confirm my tax returns.”
Google Play · 1/5 · 2026-09-11

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 3273084324

Proof data

Record hash (SHA-256): 5545f11241d6f1fbc3585ab9d84e5d4519969c10511a6aee853abe61091d494f
Signature (Ed25519, base64): kxXU1VuZFbAWY6AP9Kz2idjWCxsAiKakGOZkexLX0ApKyG6AKsjNdxwyQCkTwka33r35NM8UcX/teekF62+7Ag==
Merkle root: 4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path: ["55485a9bb87e5eefc83094843f085c766245ea2b0dd1a06f3a8dc48a24a54b58","abde5aef1239e4c432c5cc9da76929e60516f61804ed4a14c345b76dfd213bab","5a10a279f91c8df6739d0e6ec284da801f5cb44f03b472e67c5dad8c14d41ba6","47afa6ce952d28880b8609dfd1d50a84683bdc3297779bc443e929347cce470a","ecf66a386c6d570624597aa6d31ec136d4962bbb46f40f834b632608ace0721d","71f1ce72e1beb6b27f8e577176b43f61a48345a48473197f6242cfba3f243cfc","f07cfc88c23362a0a662ef0235ed532ab5709736053c4d5ed21208ccf55df616","6196afee7ccd7085361bac629b1e3642dc1b100836cb77a2d24b737b3cd4e37b","2f79181ffa3da18b490e1787c4bc681ffb90b5863bc91ff8331392d9808a5717","e5ccc501b25f2b209070d83c6e1a6a543aa166692551970d5032e1cf2fa05d79","56d0cb2e44514ff61c37fc874aeee9bbe14a6c6f881656a90e54dab1f94afaa8","71deffdc3e60d0983d04bac22af47799e28ca987643ad6dda198476b887a69da","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash: 52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"de","page":"brand:taxfix","quote":"The app glitched out and wouldn't allow me to confirm my tax returns.","rating":1,"review_date":"2026-09-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (4591ccf5fcdb…), 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.