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.

“we can't use it another time”
Google Play · 5/5 · 2026-08-12

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 2657725656

Proof data

Record hash (SHA-256): 151c1e16537a84db2c1236a0011196620fc9c9cf4ed214b0ce826738cd094c04
Signature (Ed25519, base64): 7+2egC9OQVOmWUJrYyXHY98m5gBxFWbVYN1EoqUX5JkV34fFe1Cz4zHkfB00HiiqBs/g9bxSZIQ+b6eDLMxJAg==
Merkle root: d019a962265fd99700bb41421c12bf721bc431ce9725f4e9d547011775ab56ec
Merkle path: ["15212c84d3091f39a773c682a61f7b10fcc03d6a124986a9526ad267f76782ad","6d9f785fae704d41e5bc277c7617d7261b4d70d2fbee00b3a4d2cfe1a3839cc5","e48967e1a357a25ed6c1aa54ceec2d1748b59ddead85fb0c1833565919722dc2","b59549030aa49c40fc168adfcbe22dd7d90e2091f280a58166df0bd6dab3270e","2277dd5f34fa31d4782527c33c26344c412c4ac2162c01effabc6d07fc635a2a","acac74049a575ad31fc7f33fef4676f275078404e0b61a3e9d8f6ae8b43fefd1","508125ca02c3dd0d64b7584a6e68569e9b739876bfc8e08e14c8f95d4cc18546","600c66cdbd2914238d447d9472f0149f101233284cf5ce1fc959356b300c129c","5bf8312d5e812bd803086bc463daf3f5f52e7537a044eb9f237a9dbb91de9923","eeee2539bfe30da67dd0b538d662f5ca72f792381f506f5d4a42398ead555cfb","f410755dd9ebf3ef5d42be582ae6cac2b4e9add953f3a80842eedfd245932509","a3af7151d6a244480abe5bc8ada397c9af55b3431df57672865c450809772fd0","8d7f9bb84a33c413af9063341c8f5160bc8725a67ef59bd2d044580fb9f3155b","65b176b4a433b701cea4a24b83deb2fa9ed09be9f26f9fdaada87e8434a57f00","a28f44db157d986c9333d9e3edce8ce71060ce7f7d8f4bff70f57fc26d48546f"]
Anchored: 2026-08-31
Public log entry: search.sigstore.dev, log index 2657725656 · entry 108e9186e8c5677adf65…
Expected log hash: b4666dc064e94c6d0ca3a2e9a0c5f9ff5cb70ce3ce9e0a74343a10c712c15a62 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":"v1788147462663","kind":"published-quote","locale":"en","page":"theme:canva/durability/en","quote":"we can't use it another time","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (d019a962265f…), 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.