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.

“Bietet alle Funktionen, die ich brauche, und ist absolut zuverlässig”
Google Play · 5/5 · 2026-08-02

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 3239939960

Proof data

Record hash (SHA-256): 1b62a55d0c1b6dd63203d9b0b218597fa68dbeb27c4405dbed6ab5f97bdc8731
Signature (Ed25519, base64): f25XXt2hoMO0pYLHlWx11CGMXx/HLh4c61x101y/At73bWq3FrerFAXJIObuEkQe9+DBbgk6HHw9QUywbsLPDQ==
Merkle root: 954962254ff2eae9503796c02bd08deefa3a5722e4ac0b3981007e2b9ddd84c7
Merkle path: ["1b5eaa03010968b5b6f1248fabde4b0beeea7c0a3c22d25ef424f2d72b165791","033fd86e99a59499b576a722781b48d1d63b5d36114b5c52fac6c4a4401ed790","896d8a0af351b76def32c27423b97073b8e1ccb857ef02704d977f7597f4241c","2d9a01814df68056b58afc3739e4fab25f1bc0e0f6c5e899e37992da6a18cc56","011787e2988caac3d3958f2c5b8cbbd5ebb4aef871bfad61b87d30a9335fb854","b11948055464220f57eacf8a97dcdd8066884527fd1acd73f6003ba37ca0af22","2b2a8ba945963eefffcdef242a6883f6d20fcfcb515d7abff2ac4b29af28277f","8be43b4b1729fdd16e84a59c6a3fd460d2ac8d8870fe5326bfa2a1a46dac4dd7","de834b5d986f58a64f4d7801ebef748cb8f46dca429e86a91ba4b3231cc7d62e","d36dc94326cebd82196e74b3e20a9f7d219e7890d1fa4a313d92037293bc835e","a4dd75e23af0f1258e45b84db6627eea99f30a1657c6dbfb9ab7e1aeb6c7d199","fde62d346ca93fe6ab586e87195f181c2c9b2ffa2c14b8bfe557af9f131263eb","07b2ba787804bc9fbb84c73bed76b7f65ff1b8c1694261a8264cf5f3209f315a","e7bbbee54f729cc449b73bfdd383c96b7b180e618c270037b5697f1fcc75f254"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3239939960 · entry 108e9186e8c5677a0082…
Expected log hash: 28fd9464b857a07e61931e67235e692cb8af33d7541a60ca163756a54a64e9c2 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":"v1791859824762","kind":"published-quote","locale":"de","page":"brand:threema","quote":"Bietet alle Funktionen, die ich brauche, und ist absolut zuverlässig","rating":5,"review_date":"2026-08-02","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 (954962254ff2…), 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.