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.

“Everything was clearly explained”
Google Play · 5/5 · 2026-08-21

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 3240422411

Proof data

Record hash (SHA-256): 548ce8d258a556eec8871cb06fa63ef5c4329fb305d5d9b6b0d13023b2a27242
Signature (Ed25519, base64): BshHkllt3KFvUlM5fmlm6E+jM3RADKJ+6LUhbXFDfVS+38V4ls9a8tfhaJglGDPaXDamzMnTIRBOTn7AkMVvCA==
Merkle root: 825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path: ["54880c895f12fa2179bf42656aef86c1f505e5de64fcdf94e1fe950414d723eb","c323ce2478a45105989f272a9d680efa04d21d4988ccfedd46ebc56545599184","0bc6aa60090127da87a0a4d8f1f241d317c7803afe495b87480030dc298c75f3","524d568726b36ca2e838368a2bbfdb37695b6024bcf2db341b0c31986e19797f","44f69073f8825f5d4d0c75ad365b96e86c58ad9b58c2285a8a793cceea7f24f1","84591c4e1397eda57b91bbe9b681c11955f8172aa2a2aac336b68c7c97d8ae9a","8e3240ffb9c1feadf595fdad8338450db7f9939ee8dee6d3008b252c7927d153","2a4acec2ebffdfd874bd5d415da2560507f8561950c06ca1e525850d681df065","fd5c3d3ac838e19e7b9a352963a7600555e9e63c5cd3c9632b1de97cb64142f8","d7e33ce88bd04522c9d3cecd828c2da64793cf9211100057a63b7ead77f85c95","c8b7d8e613e305123bcaa9af1ed1a7d0c72af972c727013e1367bc0e5df8173c","0526b5b7adf235fca820e27d7e9bb58328407474fe694c840500fecede0e4f46","1e2e9420d8c4747dca96dc342727525f4c47cf2390ef42ad69829fe37156235c","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…
Expected log hash: 8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"Everything was clearly explained","rating":5,"review_date":"2026-08-21","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 (825dbc6ca55f…), 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.