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.

“It makes life easier in the office”
Google Play · 5/5 · 2025-10-05

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 3198225546

Proof data

Record hash (SHA-256): 0172b640cadcaa2b1657efccf8e78e0c1c10213bbbfb6b0fcb49276cb00b89d9
Signature (Ed25519, base64): bPo9E69jST7xfLj0uRhN/9iiVUVeQXQW3r7oZ+SC7CUEG/W3p29D3L0tMXy+x9+J9+iahyQI58XWrpXweFPtDg==
Merkle root: 12764493a64961d0e0d426bbec64b837c2e35bc22a58920afcc56db07df6e8c9
Merkle path: ["0177b94b2d3f317a1633644abccc4644b1ef46752d35f3ffc7b5bf19542c29b8","57e21f0116b4d23437d42e883224e87ef2ef864f2104f4763b34bae372ae9619","899531958280ec708e26a3092b84015684d2e505484eff1d7d5fbfabd112ae12","b7c321236c31f0e795b9cfc9e6d16ba9310cffabbc21f360eb86034adef7a724","060a98b37711423831b5c7df96699a5a0b5d11b62a1f1a8c1b5be7c59144be38","4d2b0b3db87fadb1ff54a8e43517ac9fffdd8049d509f6b54b5c680ac880b995","23feab7fa63fca49f7315b6467c1cff194266dcb8f0bf7d87271041bbe7a83a6","da5d11053ad12851ee3f3fa5e1767eca7296e17da7a75a85d0cb31d7d0c91e24","7fb23096058870924827815c99d0f70e3eccb7931d3b617ed49e11fc3c12d6ca","c76f6c2471e4c84516550ae2cdfbdf25ca8f3f12615ba6a615ddaa670e2054b6","7272cacf42a6c107c9b27dd39dcb374981b160e8fad57f25b3db8cd10562ef79","5629ee10ba4b7cb4395bd3f7417bfe15e0278eca0a90e9ab5a5626f1b4cbbdcc","b6c6b7aa75be4fd4f206793d7c98702963f427cfe45d9c46972416cafee9a131","bf01790763bd70681430a2841b8504c59b88918b5b88c9d70f6ee7041d7ca6c8"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198225546 · entry 108e9186e8c5677a10cb…
Expected log hash: a11b46fc63b94f32c49058752856fbdc4e92f7a41d4e67238e3563657fcd50e4 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":"v1791685609571","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"It makes life easier in the office","rating":5,"review_date":"2025-10-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (12764493a649…), 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.