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.

“It is impossible to enter a new activation code for renewal.”
Google Play · 1/5 · 2026-09-01

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 3273209361

Proof data

Record hash (SHA-256): 1f77ee460ef7eb01f3bd2a857de60ab459fb16c3d5dc07229167ac379d5b4c66
Signature (Ed25519, base64): AAvrxc5FFVEGHUX3NBqbHGFkPT0MG+6oguRYrtU5mp3iAWzdPAXHGhCvUIkd1yy28PEcw6axdhsfVRnwYLZ9Cg==
Merkle root: 6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd
Merkle path: ["1f6ab7fb7746f5fb6e2c86695147e323e684077729de07cc7b337e5b70f83184","5d3d504162f807eca59da272cf875c70692b42f684cc3b123bdbda1ff590bd02","f96133d6b81320ead84525f984b3d387302a851ecb93ff34d38c873a475f8b1e","75561f1756c96ade5b794e11388b16e725dd365a1aa499a5a08ed0bcbf9bd810","d3b1157920c558895e51df72d2679b3e9ee85beac05f97333c48f07def7d1b7b","4cc250534473cf200bbd40b0d92cd24d58fd96627e6e2abe0ee863cb7bc93a7b","662f5219196ac2d5f3b37dd7dbc0622066e8e2e34b47858d9662e2299ab63813","4f6345c217b777bec3912d7190df6c84640451c7c86cdd45275af15bc933ed84","8bab031434e5765303b3c81eaad27f6abe851b4a2cb881d7684d126d2439910b","5ded56443510d8c8115833d519272d0a72a50f8b3c21dcc334bb9630ea976695","c6505d62fd1f18a4c80c5faa97487c91b8a68d4c0c27d65e4983982245aadb62","fc73c2b0627636c8f676f008d05fbbd4dcfb7ee0af08432d0bea252601b2007e","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…
Expected log hash: bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"It is impossible to enter a new activation code for renewal.","rating":1,"review_date":"2026-09-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","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 (6ebb2d3fb78e…), 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.