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.

“Excellent Service !”

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 2515345787

Proof data

Record hash (SHA-256)

71b7908bbe101a3c1b836ddf8728d03dc1ca1c7cd8ca37e948c463f780274888

Signature (Ed25519, base64)

oF83yi3OYr/B9keN4a0eItozWl10GHF2xG4a47nE1OSDEaPRqX2wydJyp+BzRsGJ1B0MCUbkR7wkUWm/wxxiAQ==

Merkle root

e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465

Merkle path

["71b4f03b298c846f2a6f9cbb72c3d5e2eec496f79deabcf1244695380e19c011","c4dbfaaf163fb8db95e0a8199dfee197de5a2bcd6f0a66a46637dd24e1e14a67","f95ef7459bf52599624fcb56df9a50fa5492e58ba88f99e47594aa97cc4697ef","07cf05cfd154f24ad45d4605fc3312fc69d431179fa376e791776f8db705399a","45d6dd9e9d8600010c9734089f84d91283a49cf79463407a43f7b3ac3a282600","f7d5870432853ecf9c14abef0bcea42798567322ab57dfdee5535733e7138a9a","3512aa7dfd676e83bd3bd4b54c7e2da3cb8fb16528be74c9865dea3ede97900f","8565fe071d477fa2e0a01ce0f8a3979a1c20f00fd84af54983cf2e8a5c111832","bc33a6600104b20b775870338a541ae268ef0d737516d68b22fa288406189037","8e94fdeceb8c75cd37246cc1bfcc34a45ef9512bba422294b31b9d8e6c8a209d","acd5cafac690445723b3e3644ce2775e8255f307b002db7e098bcabaf68386fc","d6a60e2106352e5dc4a29403d9d5c2ba3b108dc5f0ffc3f9ff74c9776290fc3e","7f1d0c445bb13ae8c90e977abd9f4b017f1736dd8a0b6837e8297de8e292d186","f1950e4af29dd22cc94bc58ead6e376c41b02edc9ab0ebaff7fa6fa0f9bd3732","11a62e67a9d98d919358ca5b8855f911ccdc865f14b203213de31adc67657443"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…

Expected log hash

d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd 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":"v1787140356347","kind":"published-quote","locale":"en","page":"theme:acrobat/service/en","quote":"Excellent Service !","rating":5,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (e61c2598d4d0…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.