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.

“Very good app.”
Google Play · 5/5 · 2026-09-12

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 3178115911

Proof data

Record hash (SHA-256): 28098c1f8f601c87709bfb313766c2e2d0476a35d7e4be822e63b4108596b7cc
Signature (Ed25519, base64): 5+UbtAVtl1Wvt4ULV3KCCqhGawpEjjwpshv2hooQ1BUgdvMIBpezzgR7ssVt2vwUoxcwJkZ1vMj50ECxJagEBg==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["2810e7c14ee5ddc5be0b73b1a933884f0b5faa3b4ec03732bb2dc5c51ff8a413","2e2e091d65c11c50e3d1181c542ed066e8041b0fdf99c2334c5500cde53c4e11","4d9de6cf8712be45a86f789dd8c636521a0141fe6e1889d30a1ead427810d860","85145ebcb0fddcc02e5337dc238d0b2c895b51754b5e0b4381bd2417c016baf2","1144dc078c0a4f678c4151692600c3989d69cb585081f6cf0a736c7c3119207e","8278c49fc5fa0ab84fea6a1cac9d647e7d7c9cbd269bf7d4c3cd3f8e528c86c6","92820603451940654cba48caae43a3f267e733175a38e7e5407e49e20f13a0ee","58b2203eff5e4f19285f0aeefeccc534122aee1d12f8733b6429b4c6c11ea8b6","e29984c2313296d47ab851d053048e42f28f2a743750a841cec0a1c9c10010cb","09dff2a9b9a8a7e6ab912b24265f45b99c479617e4936e07f3a2745a9db9f258","f83944b16fbf43a8904cde916c26d245f82f3fecd41aad7e2fe680a6de8825bf","e7d5f6e88126b47f3ee25c7741cdcaebb40c6bcd9d35a859108e3ac93e8a0b29","09648cb4275ce9eb9f26709778da1b3653a6ea84465537d5f6fe5c1b17d3cea0","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"en","page":"brand:quero-delivery","quote":"Very good app.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (afb9ffbb4b4e…), 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.