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.

“wenn ich ein PDF mit einer anderen App öffnen oder versenden möchte”

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 3240422411

Proof data

Record hash (SHA-256)

1d4a94cf1c27ef20fa7331b1aaeec28498cc2c2f7b15768f2ebdc98414a44a0f

Signature (Ed25519, base64)

i2dZjRmPd8tI3K2/H/c4PCXdOeKTPj3TxTGfKgxTuKx+439W3spGhY11/ve7CxmzF7mERsApxmA1OxlNJ5/sAw==

Merkle root

825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9

Merkle path

["1d478b7ec345f2cb85d35590dc5b56b2cf43689422ad723ffd8869710aaf42e4","521a84093e3d2cc1077eed3e1b7aa906a31d679f4d2eb2bd054f48eaf4865c9a","b222919aecc0a9c34654ee9c192296d4dc45152b1b116903392359365987ba08","d5a39a04e2b001c2c1ee4c0f298a14154e8b5bf7db96ab13dddb1b70fca349a3","057786c7ce214371ae28a3629f68ec4aee805e71db824da72273b5b8fef62199","10e41156e403dc322b866097557f3c2c0ad01259959b7e1f19104735876cf4ef","00f78155b4770126e59a41ddb4986c0bdb0e50244131377688f2fefda289ceb1","3412ffe6e2b65b726c82ae177ef693752496a6b6a811ee43e2ae19fff46bb345","25f3b41ab0ab34313a95339570e3f19484eb553fbced7c390878f7f6a785ece1","a57443d871f46e626754946f83f3945dc441e8fbd6fe7835cf79d24455c7c9a9","660d6a765109c39ed132fb0afa3dd507047c73076af21c08ed678d2a0c4157b3","9c0c076fec2f0fa7c1094b4111d2e5cedc7ac35232c509cd9a25439361474b1c","1e2e9420d8c4747dca96dc342727525f4c47cf2390ef42ad69829fe37156235c","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…

Expected log hash

8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"wenn ich ein PDF mit einer anderen App öffnen oder versenden möchte","rating":2,"review_date":"2026-08-11","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 (825dbc6ca55f…), 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.