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.

“nagging you to convert pictures to PDF”
Google Play · 1/5 · 2025-10-04

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 2524110285

Proof data

Record hash (SHA-256): 5fa397dc703cbfb98f81c66a4efdb03f6968912846fb185ea74b8d7408f1e173
Signature (Ed25519, base64): MOY1RgM9k0fm4sadZz6Kxbtes4Cs6GhOLO/qrefYsyoNl/W9adsvZzQ8NmyTqAuSIIM3rIBjDCaEXZGb76nHDg==
Merkle root: 1154a265a990612db5567445e00872656e7ced32aff0b18660887a40a375699b
Merkle path: ["5fa3731c8c9abd30937b4e7bd8cfc912c90e1bf45ba5b583add40e1baccaf04d","afb13cf293105dea2333b69dfb6f919d6397137e2254d579655b38e43e4ed983","040ed56ad604df3bca77b63aa13411193796eaf4906e3709b084138e9aad4b92","7d5a5450d688dadc4a60d7f5f3efaecc2f39b993e242475c732f737c31085d5e","78c35e360275ae705f237e89e7af9d05e23fea24522f698e0534e8ac647188b3","ce173afabd15eebf95d416acc3773372c1b6d85977d459b3b80c57a418f515f9","ae705fbc0ce990e9bd5e43b2eccc467e75c96e115f8cca29b7bd525bab5515b5","408cccfa487dffe39ecf6eba2222ee76b4c235e95a250203fca1e1986e5c13a7","0e450d158319b6852fab887bfa0e42e393a9c673a445127120641b04017c5cfb","df46d3bf38d90ba483f5f9af71c03566f17f2347046f30930aa6f38438f596c0","996dea5b3e7780a03c53b5aed3a5138f59965db9e50b5cb47569226c7a2265a0","8ea4b812a510f86d597b02a5c2a5c372cc7c87c60caf3660f13038a7f04f0b49","7b43375efa91b25bb70837c8d1e426ce38032262734dff0ff0d3f14b97b752f6","602297dc52019bf7e809df446e2304ee5209e9b092e15c29026ad3b8e527c6fc","8f93c563d7c563da751df1a0efbe13b6ce9bd7032eb6dd0a995c545aff2f5a1d"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524110285 · entry 108e9186e8c5677a87bd…
Expected log hash: 34efb4ec1aab60168b83ec62d0334b8e10d9814c0de0cc0d3569d176ff20bc2d 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":"v1787152786156","kind":"published-quote","locale":"en","page":"product:acrobat/convert-pdf/en","quote":"nagging you to convert pictures to PDF","rating":1,"review_date":"2025-10-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (1154a265a990…), 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.