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.

“never any problems”
Google Play · 5/5 · 2026-09-10

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 3220562278

Proof data

Record hash (SHA-256): bdea92c9018716d522a8b450dc2079d0b05372c130b75e1fbb164e4fcb5f1000
Signature (Ed25519, base64): X4xs5wermYcyaR/15n9+u9Mqu9gzyr4JkYkO20L1gOKdrbztxRyNM2cJr4hclWs6SfhJVqHP9h4gTqoDP/MdAg==
Merkle root: 2d214bb14438515f4bedf5edd9b00a6a5113a016ba9b9fe8160d41d7e6046722
Merkle path: ["bdefec480cb69cb4db406479218d6c8307ea3b2cc4168bf83cf3ff999754c2f3","6a2958502a064ea089773f26c74d76a05698039682b0150e936d187fb652b99b","a7c3604beb49e9277ac4a925ac64dd8bd7c0c4f936430a92df427876d49907b8","9ea1aafc9a12419d07064d3762549a25c05206665adc0a8c46c3a9a56c624045","9325f0bca04ceeb2ebac07309823dd4d47de68b7a41da7acbdb31d709182d502","d856729618a2c79d232b33382a68839dc5e2320849ccc10c85b018ec12123f89","b6c9efc7ea2fa654621e491151e38caba00ffd58a9e42ac484b8983c5d8313fb","deb40fb515cacc9792e92f39d8d691a3895df623eba3df385a602b63ac152bd0","cdc136d80899c84cb56954a2eaab794d87a69ed86aa4b00ab1e7378b669230b0","43a39ca4a73dad14a45becd60a4b7d53466dfc4a788209fb8be1f6e59d512487","d97e42a224d9424c059c813df7a64db617e2033f7491906446294262546f6538","84ebe8b1b2609d6b00858270f528651305988170305bf39805849718784b48cb","a05f2bc08df853cba5a0d9f40b6ddfcb3ee22fbe34c5f5f095fa2db22bab2f43","8727d6a9ffc07b03f39d84d554befa4f7fd7c5707344d3a12c42052be9e46ef6"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220562278 · entry 108e9186e8c5677a2753…
Expected log hash: 13907aa3d3da271016c4b5e75946c4440692c6b4e1684187b965dbb983b157f7 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":"v1791777669660","kind":"published-quote","locale":"en","page":"brand:concordia","quote":"never any problems","rating":5,"review_date":"2026-09-10","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 (2d214bb14438…), 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.