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.

“macht kaum Schwierigkeiten”
Google Play · 5/5 · 2026-09-09

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 3240911465

Proof data

Record hash (SHA-256): 878b0a55f8c70691bbcbe4fd6891451cd6fb55b5239198b39b099ec63997ccec
Signature (Ed25519, base64): B6H3KBQNg2q/U993GMdF7rQ7Cm1LBELnx04KGdfcoWGyfAVnsU4vwC8V5/HAWse4Ob8tXBNy/RAxCVZQyBKnBw==
Merkle root: 274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a
Merkle path: ["878cc75d7723208544511fe8952690356bba83d383bebcc64efbf51d1ebe6063","b1914b7631dfb37f8876d7bd2479a9d7d112b2554386e16e4238ca1dac7225a5","fe64fa7d69b906c05e4740004fc59428d834d8f301dd2c362edc386f116186a0","10a2a7af945f5553cbc61ec5e1354b5fc73f2cef54566ee9e0336eccd82ee49a","efe31399fe86faf02ffb2e531dcb9b39865f908606386b2a8cb2cf5729211080","a95337e3361b612ed53dbb6d32c59327cd84e784bc3c04f4354ad3ed2bd0fc8d","d8998820afd451202e7c2a01fb7678b657a5d95543f86aff7052ba0714b7e93e","fdf4004ed0b0e3aa8f0b4ec7d8f8e9cedbb40491a1c4681ef0dd3168c68faafa","d131b1fc7943d5ac10f635259a3e229359de9c693d38e78a1bf6a83facba8a05","0faea01da42503481b79a21ebaf7d82aa81ed31dddd0f14aa8877451e69d2171","5afa16bd446d908cc407e386659506df29a0fefc017a009c657cba043097955b","32ce11cefbdc6a240522be2e63918e2719193cd3b02fc538326690ac121f1e11","dca98feb389b516875d6eec81e8d4822f177565c8dee578b10d1782753aebc98","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…
Expected log hash: 75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"macht kaum Schwierigkeiten","rating":5,"review_date":"2026-09-09","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 (274a7762154b…), 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.