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.

“Bin sehr zufrieden”

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 2543700701

Proof data

Record hash (SHA-256)

ec0dc4603d9a8e12e3ffc8f150f7d68f7b4b84aabfa2eaee38e78b9d5728a973

Signature (Ed25519, base64)

g93LRMHv2h8o9jIOVmzZCjwqVHjJQoxJ1n68ZDEn9GKubeZW3CzgYjeQGNO5tqqtcrRea6+zQCbcp6M1+gl+DQ==

Merkle root

c921242d78a65e026e3281000ec5ef04ef930758058c4fed3f79f3b5ef992cde

Merkle path

["ec0ba7ff03865f71928a561d8039b19dceb30b8d39a23925bf7a4ebae510c9a4","4c19d99ee6f9ab6081a41a2bad5bd73c88bfc27cb9ebba1f554640c5b1c1d971","0f13a6764c15d8c85d0d5e0de849df2046a85f6ff71bb8fdc7193c9b075ac2d1","61d7a258d1634bdd94d6149c2f065a0db25a35419a1a5d72f4ea9f29e4641729","71c11d2a3f06205e14ac2db320363cd6d460668d56919fdd547cbc570286063b","27354d3fbf2eeda261daa94646aa0cfeb7ba2ad647bc8a90837a2193d1472f81","5be019ec98cf9d43f0ff337edf7747d06c8bd1ba088d4f49d26238fd70c3f2c6","02a39e9ab5dfcbb6b0df4b16e58d3fee7c939516e9a64db7fe18c53b4ed7026a","7099ba88e565a37af539462633de3b9c8c8430737d80fdbd83ffc621ede3a1a9","0a45079b788d103e8dc5eb80c62f29ce703c4b04bb53d99dc1d40875f3ac0931","f22f81c4289e41c80f97ac8eee793701a15d8bdfe62e8f97b22806ab1d9607e9","21aebd4c6afeed78dc2630ffa3ca44985022595d050427c2018f9c4d1880bafc","2188d3baf84fff80381ea35696b6da0b95890e332e1a7ce01204f994d1f5eaf8","05bf65283cf404965b6791a1b84dc5f4383ccc8ef0646fe0ce77afcd3035f0ae"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543700701 · entry 108e9186e8c5677ac7e1…

Expected log hash

c1abaf0323b08bce2cedebaf1993162920ee741ace8973292e7ffdd13aca356b 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":"v1787287374804","kind":"published-quote","locale":"de","page":"brand:swisscom","quote":"Bin sehr zufrieden","rating":5,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.swisscom.tv2","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 (c921242d78a6…), 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.