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.

“If you edit pdf you have to pay.”
Google Play · 1/5 · 2026-08-05

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 2514130917

Proof data

Record hash (SHA-256): 68c9d514cc658fd19b191f5fbabb4c75f4e99094a1a4b2d88e68964cd0154ef3
Signature (Ed25519, base64): 274AarpPyUzK2X86ej0r4thzhMC2GNTCtUckKG9mirkjTRI3hX67Xm7DXTM4hn1gQEp0ElFYU5kDuS/ALcY9Dw==
Merkle root: 72711ef72b8a7ab084630b9628ceb2defcf0aae546304d44ed173db57929457f
Merkle path: ["68cc1637d0b64eae3d891342ac2f5c1ffdaa5bd738aeb9111831eecb1fb6572d","564af0f78122d1ac185d0d6cbff06dd8abd6e445b9f436a6f8db910afdb7d7e3","87649b0d3ce602fe4e5914f75fe15ca49e46cddf3621c01ff6546fce9bb16263","30ada8b00221d96c073e6457771f6efafe3427cec142c4e0d58e96ae477bb7f0","70ca753b6edb10c74e7e8c8d7534c245c83383dbbf852da0c44ddf01b401a452","1e34264d5d7c41ba03c6c2d3283f0978e440ef1ade03c506f35e9c8152944eff","fccbbe9553a4de2e30166f6dccd442d0de44425900819ae96ef5f376d726d28a","2335d31cf2241f28d5e8165901661aa9121db6e0ab5d35b88194aa442a7edf56","59b2c69154063222d45a4665970a2e2421d2cf9f7b9ab2c2783ff4e4f26979e9","ee28afca71a374afa8392ab7eea5d0ad747a29ad9d0e038518384261b40e5954","7fcf4e3d069efe3de1c33bf972f46858509f6cbdcd7bd2d2ad9906f6ec5b3fe4","6e631fb50206c82aff86c6bc351b06878fddb3186a7413dc6b340b72c8f2138a","00d96e4f5844025cf94031a68b6b1f85feeb1eba15fdbc00f57e844b9bbd7752","bd788a9b6485b033101398a3aa9df1787f225fcc2ec7903fcb31ee65f6cac6af","6eb04938b6a483bb163369a1d918b32576dde0943755b89bf4c6d18743828ba3"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514130917 · entry 108e9186e8c5677a3273…
Expected log hash: 65ba51eff926c65ed0ce093a942d84c628d811a59302f32867c6589627e47792 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":"v1787124488047","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"If you edit pdf you have to pay.","rating":1,"review_date":"2026-08-05","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 (72711ef72b8a…), 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.