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.

“Yearly subscription is very cheap comparing with others”
Google Play · 5/5 · 2026-07-17

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 2541942774

Proof data

Record hash (SHA-256): 6a7ae4656882ec75a56c0be20b1bbabeb8fb6e6375bc11cc355658a360d7739a
Signature (Ed25519, base64): E60SafBZ/bzch5nr8zftufq58LZKj6b55+ulAa8pohDUH/AS/p0N2gRWyzvqwBdXT7Mme2do1h4nSfZuqt1XCQ==
Merkle root: 0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91
Merkle path: ["6a7ac4205b07d8c5f368a4fb0d0ea5e0f3f2e2b4b120a8e39c76d9925d43faf3","41cadbe2eeb68a0f508e0d2bc256e60958e82c4a88eb193318f5c39a94c5d453","488c73b0a1e9932ad9d69c9ad4a49eeb200af94bcea5ce078ef51608efb2d4b1","05da69032cf1a24c804a41010924c317a22c4c78436ba3fd5b18074b5f43879b","de49b89809d0eb58d0d5e7c0f5e9340b062a99f476036bd501456e51de501684","a13b53283629af713e67ad4a6deb2962874a17bbe3c0b97e624f2a231b175248","bf8d331b082d29ec49c2bf852df3ef5515a85abbcedcb179dcc13eb2dc04b482","0786e46986d7291b96125f00e2ed978be374a17d4ef2b4de0d7aa87175ef57da","34592f1f0f45df85e88a13455111dedaaf0f86a05ce2a4cb4266b95597380826","bd3b61a3a8bdbf733896020e30e4fcee0d5bca0ccbd366449c4c8cbbf68bade4","3bb33c0246a29f236d592e7eeea8842f1f7d6031eac0445b3352c64c0fe253e3","58a6e6d87e5abc2ae84c16426ac7ae57aa4ee3dea4aa297d173e96c213dede34","bf9364c8f07cc31dde92e8fa9e328df950308aa505d76ce4973db2a6f71840fb","e612bf3863a4ca6db004d49df9b16b869da6bd7612ef55762e23c722f5ffdfff","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…
Expected log hash: 4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"en","page":"theme:xodo/price/en","quote":"Yearly subscription is very cheap comparing with others","rating":5,"review_date":"2026-07-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (0fdf8a945cf3…), 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.