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.

“Multi color annotation and portability is what i wanted”
Google Play · 5/5 · 2026-05-24

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 3199173952

Proof data

Record hash (SHA-256): 1de5536e16aaa82f1523246545878d04bf4980780e702089e30d937e8ebe0868
Signature (Ed25519, base64): Y1kEyjme9uOWaahcFMeVttkkDnLQl0Cz+O86Jz7+iMhAutYtLHpjXy9UebxJNa3Y6SEnH6YAx1XGYlH9M08tCg==
Merkle root: ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path: ["1de6e0c68f430f96363578edc4a2a44e75eb0e4a3cd813c245b03071058e29de","f5b5fb5f9cb347c0ce8342fd37feb76d2d248d7d54824814a16291bcbfef897a","01c92effc471e1dbfd54616c3bfd991ac47b5cd440da8f9890588a9ce436b1e4","67c084d5ed6b29a45b65862011585e31497d4e03ef63563e36005d6515420990","a72d4300e8cc598f67fd3890dfb0cbeefa9781b11bd63755f3b04f19aa7b8de3","7dbd40e207763b3de0d1cba2fd4d806ed568fcfd4c249e25deb970f57f30e8be","87b8e5abc6a570ce32a984098540fbb64e5439e33e294554bec650e7d03c8926","5eaa2d87c55ed19625f9142f7457b4a052fc92625de1dd92250801a451716c6d","2a28bb82ca1756bd605b29cb34cca67266bafc825e7f5f59309d71515fab9f6a","2f67c30991863a3de7410fb2ac9933c1a1bdb626cd9aa5238ed7a509691172cc","c1e301c933406fd6db9108a2931b00d4f0fa66e93d9f930859a67b8bf903e209","9ef508adee40f106af5da543ac881bee98966b5cbaa60f63357b505631495631","81757bca5afdb109f23b2b1ab2e08f434f626af25e986d2585973e2409a82e36","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…
Expected log hash: 3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"Multi color annotation and portability is what i wanted","rating":5,"review_date":"2026-05-24","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 (ffbc979c8901…), 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.