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.

“Erst zuließ er mir, ein PDF zu komprimieren”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0b947eff0abf76486b2924a427d0e18f2efe96dad4218a0a6207f427b35ec41d
Signature (Ed25519, base64)
8MPpVUNwRmKD1brZ6WLmiV60PcTprdDoLOKRYA42RTwMV1yYPPCZt9JUOwCSepdcMsJWEbRfx+DgKHCE5JZrCw==
Merkle root
568de27ef784d24fced1ff6a77db7dd17bf4275bd5784f7795efbde800264945
Merkle path
["0b94dd21049a25f765a478a99616b30619eba4169ee7a01a64dc1f01094a41cf","5309ef73c98937b56baa492e086b05c825ef9fd09f3b43684563c4cf92002163","a57dcd006e21045dd37d7992022265219f30d1e3e41328a9617cd85282edee3c","f924ab735cdc0a0e212a0f5d5a8e45049e18ecefe7f9e157a1978df6e2826753","8225651d0444e5142a0fabeecb1ae8cd0535f9c6da6a1811b51eeabab22206c8","4f1ed473c21e3f94cb060373e0ea2495effb33fc74f0ba3a3883f7b181132aed","c67056f1532afe026027dfed41bc69239e3603a27024746cee17c4868ae31205","61b81084bb55f9b755762a5a09fdc8b47249758c2f120c8126f5bf72a6f6a386","92f22180e0cb2bfcf01ad673a05165507f4c34cdb3e7016c94db48c0f7d47a27","86d77ccd78be7ad39d425fef021892cdf31a02c84d1af109a710bc0aec50da79","901306f7c89d1458dace38a44733df0079e9f6bcd2d43da3c0160df51eac2c33","e0a30bae2c840156322dae52a02b08e3566a5cd586b033b2074977fe1c676705","b00deb9332470bdcb2bedfb8410150cfab1cc2f7a3ba959be220a4ee71e29732","3940a42145b26dbcc3a80df28cfd69a39fb071ca190610add4dbece01cccc9c7","b986cf6ce32ac8a848b3f8f187759eaad7c0ad1b455850f1924427e953c31abe"]
Anchored
2026-08-25
Public log entry
search.sigstore.dev, log index 2582597535 · entry 108e9186e8c5677a8508…
Expected log hash
20488e7687dc1a73ce99efebf3d47aaaffeefc76737db7dc492f239bf4ef26dc 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":"v1787625364142","kind":"published-quote","locale":"de","page":"product:smallpdf/compress-pdf/de","quote":"Erst zuließ er mir, ein PDF zu komprimieren","rating":1,"review_date":"2025-12-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (568de27ef784…), 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.