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.

“Can do way more with it than with acrobat reader”
Google Play · 5/5 · 2026-06-16

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 2514446349

Proof data

Record hash (SHA-256): 70de0cf9ffc288e3b6ba6062a00f106bcf5fb3a9cd564e5db0a830821cc3c0ae
Signature (Ed25519, base64): v3IyRX9giNPD9bDR1A2/4IvclMelygtRlzfnLfhngRlXC8nY6WdxPbfKE6sJ4+JNs4WoAQ+Q8oKnyWt3mpK2Dg==
Merkle root: 3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468
Merkle path: ["70e480f5b3ced5ab66aaf21b8506a77a9e4d56068155b4318933f85d0f8b40a7","036da576037ab8f1b7b173960d1161d5643a8ced5e47dee0bc05b0b78900bb87","71fb79cfcd00c584caf1f9f603eae21d5de799659ab893dfc332fd0577c14953","95acc41e382ab1009217a515eb53e127307dc8a6760f74545682c3a0243bac80","f03b0104327bd9d409a5e74d4e6b480f935a10d9f19b26f4eef83eb223b6355c","051d215382b72ca47297c21fef1f16fdca28be4228c07ed619e6370202602426","516ee15a84a22cf33c2b546f9d39a90a9c2c4687b04c9f8b11ec82b17e3a32cd","6a7909503de5e9c4fc2a6731fa80f7def4503a194217d7e76ce125a7f5cdebc7","d7aea8442e415719a9f78f40c132c203efb15944dd7b94163995464b753d81e6","285772cdba4a3d26f13a913ebb589266c94dca4c2562a97371e9b8fbef1df445","178112131752d188401518bbc1252d62047b56e315678552854b018911e00000","0f257034541900399484a35ad33dd1abeb8d1b7611cbc2bc7417a6638e5edf50","e19c6eff657ea7d0ede33010cd88abb8a9e01c28c7b3ec485b702f7e37c24957","fa236bbf83f61e60a6b63c899666e78098c5b5cc95b126245f16085503380c3a","559fcf7745d7b07c729ccd960c18a4660eed501cde8669d27c3235203d371b20"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514446349 · entry 108e9186e8c5677af084…
Expected log hash: 901e903dca7784cbcc0b860ca8f2ae684aa8c7d566efb3654aface7bae409ccd 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":"v1787128322154","kind":"published-quote","locale":"de","page":"theme:xodo/quality/de","quote":"Can do way more with it than with acrobat reader","rating":5,"review_date":"2026-06-16","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 (3030a3ea5b39…), 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.