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.

“Must-have tool for handling documents on the go!”

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 3199295725

Proof data

Record hash (SHA-256)

17fc31541d18ea783821375212ea8388fddd915517773bdbc8b1ba447e2b73c8

Signature (Ed25519, base64)

5KvI5TSFKyrgRu7kmGwZq4xu6rMzOd1lAhSBjlgdI+xsrdy2LpylAD2c+uYLgZyMnKumlPZHkVBO5rJuet4hAw==

Merkle root

cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e

Merkle path

["180149f6dea781b20dea2af83b35c829b2e57c6d15042f25c255343924f789df","a3c57cb8b9f26e6a8ce9297b6c1633d319ece21abe96c6308d97ee442c83da84","85ca8c90478f39a6893256cccc3b0c13dd2ab8d465ea04d21fc137552dae9f3f","fa856e81284e1005f2be88c0ec6a8361a86dae3f3966abff2e30b0b66ece1c19","4c66643590f5e37354d479194e337a21cc6535bdd0630cb091c3da7f4b357109","0be907df693f92ebff63131b1c035d1e37dbfb028765f7c13f8214c7baa4f42a","ced46a8e6edc429b081571ca064b0a4dca13fe3aad14a18108913df37ed311ff","eeadcc44961f7c985bd07bfdb2285c0736017bdcb578ef6c5c4adbdc27f31af4","a61007fbc6bef9611128fbac642c1e048e071630de57ad7dd1556b21d295d453","09b08fd8664752eb4ed90217c08321a2bd75a99bb629b4dacefa780c3242dac8","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…

Expected log hash

59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Must-have tool for handling documents on the go!","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (cb5472fa7b7f…), 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.