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.

“Wie lange noch?”
Google Play · 2/5 · 2026-10-13

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 3668944551

Proof data

Record hash (SHA-256): 37799ad621601cace88fbcf07343d09fd047f3146e41bbab7d42655a34fd0acd
Signature (Ed25519, base64): 2lW2LXJM/hcTv2z59wXHfSoWRkEK9wnGYvKQoN9AZuB8hw3vq67PRi28raJAKrYtyENT7LwtTdjF6+daSsSiDA==
Merkle root: d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6
Merkle path: ["3784ca98e2c6beb052cceb5cb3ddf805d49677fd7a0584d1f4302595cefa48a2","8904fb667f4320459093b4aef07d21bc3bd69d22875434ba0f887993cd436e6f","1d438613ada2834a9e87c7f75d2a6be240ef76bef885fce5aa642cc8b5cb5ea7","7533ed19f261f7c97f94d76127af545629558606d4ed5e4ea9aada72bad667eb","7292b1ac879297bce702e56f0dc08e0bebb145071f276437ba76ab4166f43cfb","bd74d60d4e1fe2df85673f3e3b664125cca267ee87f2cd84cfa919bbc3488424","4fc1fce2c422ca28d380b8858395784131aa158b7a64132b0070b25ad2bfa434","03d3a26df70a8f95210183f0b22cda529522c7492efb1555f3774e6db228a026","1612f86d1160af30c8e836f8379065a2e922e43d94823da8da64a7fee04cd14f","ac2bc2953978c140ae335eb7d9545be8af49922729661b146deb6a1e51913f28","c7085516e8a88727b07d77e9ff38229ed50294f65ba290d3ae62948e686f4a3f","2e900c12d34400e39fc8c3ebb99077c31758e236ed2350484065df834f416d2d","4a105e509823ad7c5361d9c34172b0c0d78481a597dbc352d26fbf6361d15520"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668944551 · entry 108e9186e8c5677a0e24…
Expected log hash: 29b4e6eadc957394341c639515bb23b43b99093d34033c988619822df54fe84a 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":"v1793707472796","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"Wie lange noch?","rating":2,"review_date":"2026-10-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (d8f145f4dd25…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.