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.

“it is absolutely amazing”
Google Play · 5/5 · 2026-06-26

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 3240231023

Proof data

Record hash (SHA-256): 2339eb9d9a602806363d1c93a5ac3bc4ce48228efb48eb6e5c0e113cac711539
Signature (Ed25519, base64): gXR5MuP4zeEsMqRsdFUXvigJSJbZGWWBJwxWM3Hq359YK6FGqA3jtmdXudTQhKjd2LNgc64Ul1EFyEbb/OFFDA==
Merkle root: 888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84
Merkle path: ["2335f3c52591351b6fd334b5acf3f288cc27aa1de38c4650f5b3ee4fe5266ad0","9ba479a0dbfb900144e1b4c50781cce90ef69157c85f901034f1971fff98ed7d","d195821bb69e21d4f6188067087c919efde80056f45f5bd518b09d5a75edf75f","b4fe87980d7353d354cfd6f76e6335c032b696263f96526a9dff2e1b49d5cb2f","41deaadbbbfbc9832c3a6d08f73d1877cdbb6cc21c69e35627c3e3a1693134ff","fd1e828fc043c1ec9850db6b89f9472ca2d649759bd9d95324e3f9722aa9b8d9","f91a46c5a2ab394ebc369b1d7c61e29baeafd824f763e544f7936a5fda70cb79","294a6fe41aae7c1a8902c0dee3a3e797e8946cf50ebe2e85e07446c1aeae7f06","5262d3ed56d3dd2f61220f1342017f5026cf505093ce78f0305d32a63258983d","afd8bff8776c9683243789cc5493fa889bbd74c8618502994b96be432814987b","36593ff6981142345d894360aba2045a8b70ebe4ed0dd9f3ba3c7292169f7244","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…
Expected log hash: bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"it is absolutely amazing","rating":5,"review_date":"2026-06-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (888a38c73939…), 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.