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.

“I was not able to share a file I prepared”
Google Play · 3/5 · 2026-05-18

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 2524810465

Proof data

Record hash (SHA-256): 5fc4bfa2900d91b2eb80eecb608fe8db263d9c4e4d0fc466416f2d8a284678f2
Signature (Ed25519, base64): NEB5ZNJaGv2gXJ6X7LD3ie0k6aEmJma16i/JU0E5lZSm5qW83nK1VwijKWLGavFP3UZ+/bnP43hre45r2OoRCA==
Merkle root: 3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3
Merkle path: ["5fbfd48b71f356cfe19171774d116499f73691dd35a607006380d325921e8bea","1b5f4f5bb653dfb51026f9b7b8503c0b0ec88a1ca96ed9863e7444ee03c65379","2057b1afdbea315e9f65ff9c54beb04fa263e9f84be9ff92cde8c9767f59fcfc","9c6184ad6aa95b67f22176e6289a928160430d190ea9f004122aba6047f7687e","c7f6c8127bec30192572638a8656970ddec7c257dbda4d3209bb6f9e5f501000","fff42bba72ee0531cb99264f4ac95d20782c06b2232949144c5debfa1f03f4ae","d5fe04125691fd02c8100ba2393188b3fb4acde5473f569808e67c177bf41709","241bd6cde3b217386da57ae35299c368741c7991d0374257dc2de9a895835579","d557a99c75e0ed34c27b691939994f626136a5e364a080f503c3a304417eff51","5a5f99e5b7d8e3350ae4c42c3b151f9b6015dab0c266973795f3b3e2ad8e02c9","746854386f8f12bbd3256a032f840493051d001850691719276a200b1fe9063c","8795cc9548a27d4792f561ed0be236baf1443f07eafb28127c878d07543db8bb","985842e3b7b7b05d065d3478b9548322db9ef51189928c897e184837afc0a836","16ce5ef98bea97aaac8d473cbc69dd111bbc7f7387aea9596c8bffc373b8312d","db72b82118c1e08b77018004fa72584377d6eccdc4c75ec19bef6a78273f75c9"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…
Expected log hash: 129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"en","page":"theme:xodo/ordering/en","quote":"I was not able to share a file I prepared","rating":3,"review_date":"2026-05-18","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 (3e1c67438f65…), 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.