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.

“Absolut perfekte App!”

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 2514750008

Proof data

Record hash (SHA-256)

16920532b27ab914f2736f671902ec01b655e4ac87a9bc7952eb0419b450c656

Signature (Ed25519, base64)

hhaRO4kxqNTIlI8CIVTRnAOI4MZPmb/TcGzOwp0FmmR8sHgOWECOhQnLX6G6qJnXAIYgMcZdTzcyYuFGi5U1CA==

Merkle root

1f4f3b5edaf264bc6a00193653378e6f11cdf7d052ca5b778d915c1c21c7403d

Merkle path

["168c9753bade27c4973704a653e0a52e6d489e6f0d4a5e264c3d2a1cde541684","8fc82b5f505dd839063df55353efdcc6991680140b4c2c5ffcf143d1e1c5cf8f","581a66ffc8c7612f638045a3295257b0ad3026d60ad12f822b4f529bd56949de","e11148caa04fcaf28d5a15b7a4b1f39646d553a4022fe57dedebcb0d5a848c16","8b7b02e129b01841d81ef8dc62a3c90dbad702d397aa78d3f39640c7a18b4fd4","acdd4451845e0459a077dfe4a2d31beeb44072dcc43b42f3670206920a74a2cb","1cb1ff0c46f20427e91c194df2a9ec3fc59c93ddbc1a42748ea429ef18c2f65b","47502aa8597c93ec919fb9922ba5f738306134db28c615f46d249941b7d222b1","186ceda7ab9657a277344aa5b298545ca93c840761f956be37be0ddbda10c0c9","a977dd9c255759f60910ebbfada37bc6389e634ec744dae7998d87fd02a09e50","825ab7a5e76d0c532979892dd3c2fcfae8d542ac7c0b2db3bc889379e4f5027f","00f55b6b281b15b26d1e277b522acbdbc77de17457ec38102c811b8ac3a29248","138cc39aec794b5e40407de02fbf6256e5c6e88e3b28ce0749290b058b1d725a","20b25fdd62f3ca5757c7b65a8879088679733fed5432f6a9c311d3d03b993093","354ad39e35fba32f932ca084b3a174e4cb81b7aabf68001f138a9a4088e307bc"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514750008 · entry 108e9186e8c5677a7ac2…

Expected log hash

72d3f466bc589a4186e04430bc1133fbed10c2c1049384c2fe15c1cad3406981 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":"v1787133679631","kind":"published-quote","locale":"de","page":"product:meteomatics/weather-widget/de","quote":"Absolut perfekte App!","rating":5,"review_date":"2026-07-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.app","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 (1f4f3b5edaf2…), 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.