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.

“Received good advice”
Google Play · 5/5 · 2026-09-17

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 3273209361

Proof data

Record hash (SHA-256): 3740d32636fcde7a2327de5572f61150843e931d4db5a98c11e3036e61a99d22
Signature (Ed25519, base64): lfnBwUWebmKeDnOlTVO1Ba8wCbdJlvd9zfwRXWtmjycdgQvS7dwBxwCReiwgN2iuZr19VVUCXeV88pgvxDVFBw==
Merkle root: 6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd
Merkle path: ["37532560df79ec04df6e0d9b8add4360187ad976ce5b3225ad8c22c168d04592","9e7bd77522c67d7310c8a656e78b101a7fd92b926f8bb1cf2826601be1f430da","1369d95ad1008ca17f8cddedf243ac09ae9cedaebd7dc1be86fcf05c6616574c","8fe76bf7e0a43e2781befe85d0b01736071d03983649fdf52282e6a80516a102","39a85bd546877090fa099070c7135babbf547926edf7bf3bc5d77417002f8a4c","8ae1316749ce35f5ee9ca9e2e6d2d15b9f0b830a3ad2685678eda7893a2a3037","9665787bfe83574c5ccec609947cbe30a4bd6baa4165f3148982ebf7c2a939b6","5e708b564aad00cdd4921d36e01fce824fb6fb80ccc2d10c515664e2bf0b20b1","8cf4619c49cf520ed79d9e0fd64cc4d6fae4f3d72098aa7e7fbd287ff6b6ca36","287effaab2b095f9fb87733d95c651c980cdd58f9a0fec926b3edfda4e0df3c4","8f40766752d908ec7576b4a7964a0946021f5a55cdedbf0e53752f919a8cc3cc","ac9426223fdd19a53790a705e99880cc53b0a3afb83ce65a816c05b5df037361","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…
Expected log hash: bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Received good advice","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (6ebb2d3fb78e…), 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.