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.

“Adobe has always provided excellent & clear directions”

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 2684346356

Proof data

Record hash (SHA-256)

176340977b348fab48017a9d7d30ede64cdbd752a648e9d3eee5da46d6cfbc8f

Signature (Ed25519, base64)

KqRZbj/xqHVpqQe6Ke6rriMelX7dek+fvY0jRzam8WfmDAqwXllB0m9M0FbB8J29PPvtiG1W5sn1JqtLCbpoCw==

Merkle root

bf06d03d174707f535c1833af2fe5d51e1d258f061223559344b34f56a1fe592

Merkle path

["17637b29fca1671a91b20ecea53877ac2fa5449013e50dca58ac46a7c10e2f19","336411fca2021ac5cab59134e951a02160ecbf35da08964644dc6908f93c1141","6021a2f61cd1dd2d261e06823c63f08d053451c6dcb2f47efec49bfab8122a8e","9cc173efc8885983138f14166c8b007bc094686821d984cd91d2852704295205","6710165918c7f1c1628fe446b35a8f8aa1edf724bbee5a94223b481a76ffe4fa","27a06353b7b557ba80d56c9449242fd5974d2dfb52d2eeb25f75b04222847643","cf85d2fc8feb2f2b4f388123791cfdd9c99c9c0cc33360bae0f148b66d855529","8af5dfec9ca5c7c3a7d14b067db7b12166fed5f4c72a4ee6f564a603ccc5eef9","bd423364a863ecec3e4ba4d34896c2de1e1a542f0086b12e91d90bc017308475","4c923c60d5afb17e5e2c0a38cf2f9646324921f6b4b68f5458a20a9aca06d56b","773d50eb986140084fbd30c8cd064a366600ecdbebbf889ced0e8b9829f42b13","3a6a9454eceb7346cdf84a3f8b7e0baba236653cd64417edfe4d2d6a2b2138f3","3492fa2427a95ac81a05d55f826772e439a4f5dbe5c25418023e367993106e04","e61e8c9172ebccf404204c12ed180f9c4b13c940a974e219cf0d945d751fc601","7e649292aa5430485d2f826d445d528f8e95727e1e2103ce6cc862417c028321"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2684346356 · entry 108e9186e8c5677a5932…

Expected log hash

21bf9008ed6eb4689ee11c1c7859f0e94084281b2b2e2088b1d7635165466b55 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":"v1788337894213","kind":"published-quote","locale":"en","page":"theme:acrobat/service/en","quote":"Adobe has always provided excellent & clear directions","rating":5,"review_date":"2026-08-03","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 (bf06d03d1747…), 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.