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.

“Do not enter your card in the app if you don't want surprise charges.”

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 2683442043

Proof data

Record hash (SHA-256)

0b808a0ff5adbf6d2638ac5424ddc62cb940b6b38d28ea6fb7a3fb78bf0a486e

Signature (Ed25519, base64)

ikU8zCsj6IgHRamx66d+5qEYYWD6aZM97O+g2y/VRtxkR3ShqcOM+hCRGdxqmaVEUv7cig0GYJ8zPx725HO3DQ==

Merkle root

fe94c04c20b3266750f4dbc6a3653f61780d445d01f1545120f6c37d36d71ff0

Merkle path

["0b7b77b85d12cf476e96dfd5f51fb8e9445c8aeb8aac38ac5c3dbd487f2d89bd","d86f6a31e8d0fb1557bcdeccbe298615c9516391bf876b0b1feb8cab8c0a4c1d","a9c0362df1396f3f7427485283c406d8510ef41b701e079fef12bc6c9dacf2de","b19d20516c04191f2147c080a6dce574538cf5467b3d4ab0f03d498283fd1d55","763853dd9e6663ff63377d78bb4426f628b835a5101e07fabea0f789d5ff415e","3342e099eb187b6554968154da4c64ed6158b7906a7920237acf45ef4067359f","101b76565bc09c83567eaa5a65e69ea099d1c6f419c820127bfd2cf23c867d7b","db803be57e862c41417fba52a1b98257e6fd8d3a76624e1925d0a1e89ef91271","b5e553a621483e38c6ee2eda17ccd5bf8cc35d20b92ba4b9010aec3682b2050b","2214f33143248d386647a10f66f5d8639fe6d9cb865bc62c9cd75244702ecbdf","6f6f44fb95c9a6b018587feda9e707b596e7c0a48a9e725db1909517ea014464","01463551ea824d36b27f0920f232eed6a517cb49211a3096e69f375a94ed461c","93f8a73d581d5a577779ea4e3a5ec90a9403a343dd763f3df4c580b86533a7c2","9764411b9036157d4f3622be5a17f6276b575f16c417f7b08dc6150c7a3e326a","360c1b8c241372c87353049db4729fbb13151e7694db18a4b9ba21ddb2c2ab4e"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2683442043 · entry 108e9186e8c5677af84b…

Expected log hash

b32555b0c0ed6ab3025d809fd17065d5a2118facd0208ca397bd6fef92debff6 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":"v1788325010619","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"Do not enter your card in the app if you don't want surprise charges.","rating":1,"review_date":"2025-11-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (fe94c04c20b3…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.