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.

“Nach nur einer Anwendung”
Google Play · 5/5 · 2026-02-03

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 3272785693

Proof data

Record hash (SHA-256): 1409c4d696c3f29bfb8c81f64b2240dcb4d5a8d0d4ac00ecc3c676b7089db8c9
Signature (Ed25519, base64): WGLprX409RtSDbSoPk/RcQhDEluBYZ0LqkCv1r5/3Oc4fc/LqODrIPLXI+rvj8xhY+z0kGEHcrHKj/qQxx8FCg==
Merkle root: 42ee8ba4b974d737f78b7f168d0af8ea0510697ac4ab4c6db44b5522bd195660
Merkle path: ["14055b8b3089ec2bd5b158c4aaab3ea6f7cedbb84ec28f5231516cbdb4193bc6","daa41ce090839a8f5fca6d50e99bce9503b543e3819d82d2441b79b3a62eeea1","4c1dbe68650468589e7ef4a4280c383978178d352b32dd4e4a6ad26926658fc0","ca62b7e36693178959037c35c878e56f413f371c04fec11ee822309a10ea7be9","f21c2a159f755004928320bba666fd1c672d90dbc766cab96dc1a3daf6353e63","5eb44afc6ad19c0d88b3eae498d15917cdf432b751e5c684c31a105da86e2181","5122dea98bb7d44976a3445df8435aaa990bfd2e78dac86093072c0fee94c4f4","571512fa92f6ddce4879db9734e4a78981eefda625ad2a770c70737e92865da9","0953bf381801fa7e95a8457143c3cf05fedb947f209564460c25b25fc051d10b","907f73919d25d5ed6af57c60195659de7340b10474815be4ae55717bead6e436","d7d6aa0060ddf43900b4c89a5341fdb8b45cbe3c238096077807e6e2f587a8c3","5f15fc19c161cf1b078cec1dbb446ebe0ad796b02ab5da46a3b86356dc6581b7","49dd732b74591111793e90f822c8febb6b4e9dba2f427a61f4d9f7035d4c82e9","c77ac7da32c6d4db47aeb73e606322601c1bed1566533de53bf56d1599928d0e"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3272785693 · entry 108e9186e8c5677ad5db…
Expected log hash: 3b93391ec0595ab5c0ff73f2540eb1322f56c3c1302e6789c57b97c74423deaf 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":"v1792118508353","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Nach nur einer Anwendung","rating":5,"review_date":"2026-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (42ee8ba4b974…), 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.