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.

“Läuft seit Jahren problemlos.”
Google Play · 5/5 · 2026-03-02

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 2543857133

Proof data

Record hash (SHA-256): 6c2febb0ea1ad6209d4f70720bcdd09998ecf9812cbc58068d070965c45d75e7
Signature (Ed25519, base64): t21iN5ajXLmWQ3yeeh1/tWblhL5TrbPoAbjlxUG5R0Ns6lj1OG4/gSiR76zVARtqgNgZBrqxFXQdtDZNyv0fCg==
Merkle root: cee60bb6c0816d1bc69326ea12cf0c5c00cbea13afa283147bf24b52e30f839c
Merkle path: ["6c24492c94adac3724591330a4b35b40250abcc1b82f59d274246672e54f933e","11b7535f21a1d43bcfbf4bf20e861e803df023d2087895d127de2047d5a765ee","cd8e808ebf257e48009156162f1d900103c28d19c91d9a5afaf64e0364807e78","e3e6a5f6369182081953364d802f6652545cca5f763c560bf677f919e7c4db4f","d0bbb1532b58a9be2edf8e84ba95298dce5dafbe555b5164a69688b25e5d85f8","4158a30a06a302ea3039aeb30d2a25bc59f9de1e735f4725d9f6f4bee40cceb7","df46fd00f2981ccc4b4ca9d7c419e506b522a951c70604b1b133d100d88e0284","169edcbc5f637371a0333fdc0bd46d83108bf1683fc80ba00f6bc434839b3f28","8344295c314ef9f4e57a58c8afa82d107b48362426be1cf3187dfe07f3ce1088","fcda4e778c9c525b056ec8462cf13c40224910b6abace5e596b38b6f460b2684","f071ff0fe90eb090d530737bea647a49c6ac03cbd9de375459cee4a3eac2f1c9","a38c05fec9f7756f543ce7316369967ef218f420bbd707b00cedd3722b7b49cf","1a634c86608f8872bc200c568ce8705aeceaef5e6ca2a6b293c8a08d19857cba","6d215dc9023570789455be9902e0d62b0310ab7bcbe811daa69263c90da55ffe","57e3801fc0af4bd2492130e334ef2d0425fdcd10c95109df38ad0d371e279fbf"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543857133 · entry 108e9186e8c5677a5231…
Expected log hash: d8e1ac8b740526c2915424d7f7c6bce881a4ef05d0a3a3dbd88e4c760e36623e 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":"v1787288037224","kind":"published-quote","locale":"de","page":"theme:threema/durability/de","quote":"Läuft seit Jahren problemlos.","rating":5,"review_date":"2026-03-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (cee60bb6c081…), 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.