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.

“my tax advisor is significantly cheaper at 560 euros for the same services”
Google Play · 1/5 · 2026-09-14

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): 5c235b520ee8be66e5d7f651801d90aa389f309a1f4410b7e7d50e5a1f0ee2ad
Signature (Ed25519, base64): UpKDJQwFhcz7Xc7OTxHrAx/OsydGKuimUw2RKhSc8wyshxm6dxEJ9A/dPaW+Be6FZf7aOpeLRWHL1oi8/tSSDQ==
Merkle root: 42ee8ba4b974d737f78b7f168d0af8ea0510697ac4ab4c6db44b5522bd195660
Merkle path: ["5c350c53954ccc17c016ebdf1734c07e6d48ff4b2b5eaaf05b796a54c11dada6","374fd98c2c953e1541ee5b54fd2c57dddf5fd62924140030fa596d39cd208fa4","48ab616652625dfc7b9cea709df514ab319033afb2088c67c248bdffe63339be","ec2291c6bc53c1384934584a2e6b825138435e6cbdead93a1c4383d0cd87add6","f4f51e30daff2daf0546cd908816be8e8271e1b2922756f21121d3f5c6f99282","aea9a873a0b84ce8d4773f1a7ff9379a08e79cf2bde6fee92ecd2849de9c4307","d6c9fbd947a73de72c8e22789177301f4a8fa92d79ff108c9bd87c8bb27f8caa","05f0e1cab9026887c75ef8878c8d8bf2b84cc5be6b3a8782696dd78e3af41651","101c2b66453163592299e39fcc056fa735631449924d58f592e52f674e03f4b3","f59633cbe064ee02c5eab4c8a8a3a95f9b0ba82e2d901cdd087fec21dd0b27d5","51fa1aea486aecbc2afc406a6d8388482b59959a4c3d1de185360cb81c8f2715","30d3d9f9bc254eb6bfc8c827b53feae0023a247bc9141fdcd1e9902234b39648","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":"en","page":"brand:taxfix","quote":"my tax advisor is significantly cheaper at 560 euros for the same services","rating":1,"review_date":"2026-09-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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.