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.

“because it is easy to open documents”
Google Play · 5/5 · 2026-07-22

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): 6b4a94d8edb1131768cb6536db470da9cfc83443d240d2a8e4e09e78eb08ff3d
Signature (Ed25519, base64): vZVXSvHOdpddOQH+K4WcvQ2BI4P6gLDkow74xm4qNx5eV2P8Aq/SODdVsy1a35KiBbE774OF7SmPoaPm9E36Cw==
Merkle root: 4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129
Merkle path: ["6b4c11657ed5bc84de348f4c8fdfa94753e5a9e31c5645d096e2071255c05320","c012004bec22f3fae9f45f58b631e10421f21e622009e2369b3936eec284f918","359bf78c0d08968911314d7cc51542ca6beb265a73a307ea885639b985256740","146955e301ce1aa80eff3e6083a8ff1a5c440b9d865578e66ce80e4890707d62","820f67fa56d0a07fa2389aaea0725ab5a7802ba12f9357042b97c8fbf798eec2","013c2d5a0ef13d9b3c6de1b736a5f2d04bfb65391014a6489bd537f2abf1c9d6","6ef0bd80128dfd4b783eaf533d8634ce187b99ba40204534cf01612fae69f7aa","7b8df0b152c8e1b49d9650e1f67b022477b7e92de2e95e303086716cfcdfc14c","98fde2d9ea4a51dbc5383493fae8241fa9e388f1b4f91203f34f6f1672edfa95","c53bdd9bd46bee608e4acc81777da372e33209c0625bf9e9e0e2beb3f3dfd5a2","acd60d51959d8ea241d4cec578f498e04889a18ac38027355c026f33e421b596","562094a4371f74846c5c87c1bfbeeabaa173cb62a761690ee55d6e20f604307b","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:acrobat/ordering/en","quote":"because it is easy to open documents","rating":5,"review_date":"2026-07-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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.