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.

“you have to pay to save any changes.”
Google Play · 1/5 · 2026-08-07

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 2514967984

Proof data

Record hash (SHA-256): 60cd99d3d30eea79162db12eb1be473b6fb1348cde314bb0c5978210ca69bce2
Signature (Ed25519, base64): rTd0zmGSSp9kFjCsk5hekLcuG4d4SwTIVKy4A8ItONmSRViPgiWtgQXQ90FwrXrdAV5E9Ym/6h5/MswFm2QmDQ==
Merkle root: 9ddf6b9053b6e5e7a2f15ee7f3bfc8dfb72c48a1917ae5b7e553033e3ded6523
Merkle path: ["60ca8d57f21ff909f33ceb76f40ed1248c38822a27758f31c545d6ff508cc6da","a6861d4e34d2e08ba288159898848e983adf51a9e06f15a3ab2006c2f4bbb9be","08301f112a5d66bdde3e4e941644c835a346786ab72cc7977ef13c789738fb78","01bfba658b20d11f74dbb9f93826d6c4c78f004813021931cc61953f8893515e","4f47dbef0a77ea5a9b72aeb8bdc368d793e5d60611c99027eede974dab4e1a4c","49ff836c6b8cf302379bcee1455d501d4bdce68a79083d20f4dc8680ea328ed1","8239f11c90724430be9bc30b98eb9872e7bb2209f858aa5f5eab638f19748911","61b0c1c057827f213afc095ea0a656bb345df418329c065236812287c822857b","5b3d158bfa6fea4c3af2ff2aa6ad96baa6e6f1479e81ab670d9631474444591b","a49c485edae3f18fc9028799ee439de0c8568b9af9b6a6be3ef3acc9b280d1ca","1c0b25bac6c7fce446c9b131c10096bb54f6a6abf30bed5b4e0c1f9a8f7e073d","2b6dee3749b82f13b3b8a641bbe3341e0b73743d28edcad040b0254dae05ac25","a21260a3b3feca1d6975bcdc8cefc8114d0a842f3a7e63f8b9f1b1daec35bd2a","ea40ae0189ccbe6f115902554a87d5a76ecff9d4f22c2848cf6df598f3744e11","50c4eca268fbb41f8c6bc36d8a5d1b6cc09733d96f0fb33e6cb584096c56f695"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514967984 · entry 108e9186e8c5677a902c…
Expected log hash: be0cb34bbab326d10b25013c37c9294b14554a6c6e9fac3dc68c06dc2c3c60e7 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":"v1787135269737","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"you have to pay to save any changes.","rating":1,"review_date":"2026-08-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (9ddf6b9053b6…), 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.