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.

“I can sign documents quickly from my phone without needing to print anything”
Google Play · 5/5 · 2026-08-31

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): 2fdf929025bd861b749304ca08f25a5b8d7c6c3fc658a6d32e19e78701583fcf
Signature (Ed25519, base64): +GLRfKRGcoBKVkVK1x1wReU9R7ze1+pmMb/+vCTy0LnSqum0N6RbtyNLEuyd+MMkIsk4uXwPGDzAIk/sQA5QAg==
Merkle root: 954962254ff2eae9503796c02bd08deefa3a5722e4ac0b3981007e2b9ddd84c7
Merkle path: ["2fe96a0a95d4cc03b5c8657b83108e43658aa55a8df3397b170a5fc78849dfd8","fd62e5bcdbe982f454e60493976f5d5e3b36d7b444418b9ea4041426deaa3cee","bce5c29f0f99b48b95e3ef5f03202684c1093105e9cddc73dad6d7985064a050","8d33f6948220f608d3485e808e28670df21fb7e2a4ad8963bfd3cc053bd1908c","e7a7191efef04cb0d8d7c9c492bd4a3d59a5d67db5f8c298dcf9c0f2c6e3f231","2f8294d3b5b1fbbb56643649544c6bd5a67fdfbfd3b3a82e88f7a23231bba7c1","33748c7fa29650b509bb43a834634bb9f586a057b74e0e4e34951c958841cd87","dcf3d50d254deed0aebd4b29e2bf819ae3e2a9294f4b1a23ec74e32ffe37328e","10a0f2ea6d037545284479d9c61748115dcd81fdb18591892d11a61e53192db0","4b9de0a9cb2e253d5787a11cc62bf51810ac91e95ac348ff8c792fe6c6f08255","17f443e26f57ece4faf872e420d90fe0ca13987aaa28191f15ad8b704c244dc4","37d889bdc912bd16145284899ed1544c934e2d5178cc362b2ba799bdeaadde22","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:signnow","quote":"I can sign documents quickly from my phone without needing to print anything","rating":5,"review_date":"2026-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.signnow.android","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.