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.

“hardly causes any trouble”
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 3666689888

Proof data

Record hash (SHA-256): 638a169276638502d0f5051c2d963636de5a3769c31b14e99233f7c719bda534
Signature (Ed25519, base64): nGcaqp1aEKEw3v4++aivOmGsvKhN7mCxWAPa23cPYUkjcaO37SZEAKB3RlbMVTsLXJf+on9CpqBG0hVzxpj+CA==
Merkle root: 2398b9ffe5a3df5012483239ae50d07265a8714a6b9a03ccf48b3559c47e03cc
Merkle path: ["637ef5a64310497ffd4b9b8b72ff4e9e7ea12ab97a845fdbcdf8f9aacff76c80","12ce9ffb310cd696092a19014b6705ac2730a0cb055cf695a766316f87280c30","0a32f76ceb317449f6ef66acc874c24174b2cd909d1afbdbb9188cbb0db9c6a0","f8a6cfea0e27fa01c7786db27716384a55114899bdd4fc60047656f03c483b39","d9dbe5a93472c265a19031944dba1f9d6f0bb95874cc4576a319302536173ed0","f46f6f8ff57bf8a306a82a4254e761f5d52000563f1a5a2e57551b3473a78059","9b6460cfe5949c134c4f6815777f763ef6603d00090707a7973e91e788322ceb","14b687b5bc6bdb5bc8cfa998ba1a9da6ad208d6a4b8f494534fc678f558dc741","e7a986f3400fd0768d073e9ae6bc80d44ecc688f80b6795554600d780d11bdf9","627499e550068aa32d52dbe067291340b5ff54d3c6caa4539115bb8c903c7f66","8000ae1d1daba90c87b07012e8fd73761b2be321be4cb718e1e58ba598ab97fa","7f9965405b2a4e80f94f8fafd6d8a80d7977d9c48646b66b983448c7f9223410","69e20c73bdb345f66641353c13ba7e73f98bd05396ec371f55992c40dd6b22bd"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3666689888 · entry 108e9186e8c5677add57…
Expected log hash: 081173480bb584ab401065f32774d38ee3dfdcda0f372573695ae49a257a2dc0 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":"v1793701859167","kind":"published-quote","locale":"en","page":"brand:concordia","quote":"hardly causes any trouble","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 (2398b9ffe5a3…), 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.