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.

“Very disappointed at the constant nagging to sign up for premium services.”
Google Play · 1/5 · 2026-03-02

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 2542443729

Proof data

Record hash (SHA-256): 7b4fe81c798886a6538dec8f343bc678167cdf953355c58946be174d587557d1
Signature (Ed25519, base64): sbvR0g8rlO5uVY5+Cxy/fkiXUlghCrI8N+FaPCbJQEkqAbV1/CLVdwoT60Eiq2swlsqNxm8oAqBSTw3BCrn2AA==
Merkle root: 4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129
Merkle path: ["7b4c57865b20e39a3db714f4c4c309f47dc5f9eefca3df0f0836c0d7cd751647","8f0865c54c1101b2df7f9d41d5b05cd8b04664aefbe2d309743f5dd0e73787ab","51ca593bd35de65890db5e14372a9552d5d704e343da7396d56536a8267b521f","cd6fd333da3bb174f18611bb981618c3bd53eeabae7d238175924ebdc42626d3","e86ff3deee4efb738987f303e496f96460a4e7297863421304545dab2953f0e0","167aae3274d32a29f81be89253a98edbe1191dfbac845ebbe92f673a81ecb57b","80d3c96d0093d95d6372e30a90e9c7cdc1bdd68eff44d56ded68eda358c95d16","bff719222679c55a927493755a8ced5c4b85021cd1532a01f1a8d96c6a81c3a3","2a825e57076ad5c438bdba25ebe632dc5842989db32ee2e8d3ccc79776e756f4","6fe392e5ef701ad1fea31a13b23b9d2e22d9142cadac81aa6ba49fe4a872b39a","3fe4575d5a3b071467a9517e6f649b888395325fcb1a1ba1fa39bba042e7ed1b","5a5b8f0fd48196ddee61e581ec38cbb2d12c7448271c1c91ae6b2d4ff6c59a35","58001a430d202986e5fa4168d8e078e3b00d2bdf639864028966a0604dbcff6d","eb13252a020300a13cfcd1aad747dc15bb314823d4af7c0fa17270669f143f49","16ed4be9ece293c235c5510e2cd19a05055f034548e73c12f8a9947de7b32591"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542443729 · entry 108e9186e8c5677aface…
Expected log hash: 1f12c9d846c7a9fd8aeda84057eb4d8f639bf78886a62c6290a2a60cd48e0812 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":"v1787280389476","kind":"published-quote","locale":"en","page":"theme:xodo/service/en","quote":"Very disappointed at the constant nagging to sign up for premium services.","rating":1,"review_date":"2026-03-02","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 (4354cafe0e2e…), 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.