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 good pdf scanner”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
19cf58505f14339e1c85ed723bcc926409b89678142b63bb3f77c84f682222f3
Signature (Ed25519, base64)
2baT9xNOKkoDbyFEOq/6qOJqUdlZlTRIkxxC6fpTPBQk9jv72SzVIAwgE43QkvtDfjcX7jkVSzko62871jtVAg==
Merkle root
ce3d6938e86e6857be7a8efbc85155c1c21346e72fe16d50aed37ed5b5eaf89d
Merkle path
["19cc6a762f6bee303dbdd1000f6b63a344240785307f08fbb0d76b036e54ccc1","83d19d83dc79b452572cbba954a9806502354330e739140b5c545abf267044d6","bccfb12f188c103cef56b508a2ca97e22827a05170838196fd260234a8347dcd","f60e9414b07d8c9050a0dd9828ef2f09b4e93cd87a4002ddb4e8707dbffdd9ae","63d96480857db06a7d5aeffec73e4e04560026638b5953f84df25ba14e0dac28","03d5686af64cfbe34925c1cc2a6283ebd27d3c65da7197bb6d22929f6706ab72","35a116b0f2b8ade3a2f502aec951e0bdebfef2c09627de6a3c169c582bf9d526","f8cdbd2b6308c8786cfcb212541a5113c3fab7e2ebc8c31831c7ac45538393cb","e8e8a11b31c7d64372511f5341534022cbcc89f85502e5a3fd13da99f175a26a","dca2806c6795547c7d23d78410527113454c14fc0a26a16e2e1f186ae7227220","a7780723cb2e71b8042f160f6a5900744d5916cd77251e8788cddbf6bda0ec61","b082cec9c71893995ee8adb970ecc1d025e31f078c329806eabbbdd351c579be","b30fa96b054eb8908168690ff8b151669e100c89959f7a8fe4c48ca457806f71","7c049e8780522490a97cb683a0735593208d22b55a66f49923a0a94c3b56e5c8","6c9e445e142590592ffd87f282aff1887c35a7581e681839c186aefd59fc6d6d"]
Anchored
2026-09-01
Public log entry
search.sigstore.dev, log index 2671651968 · entry 108e9186e8c5677a6125…
Expected log hash
3568e710eedb6ffaabfb65cd1f12c143a50a3583c899cc455e67b87a19e5bed5 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":"v1788237937782","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"very good pdf scanner","rating":5,"review_date":"2026-08-01","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 (ce3d6938e86e…), 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.