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.

“the tax advisor fees are way too high”
Google Play · 2/5 · 2026-09-16

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 3273084324

Proof data

Record hash (SHA-256): 37c3fefbc17036ed46f8970d4dca8d3be6da2061b60d128d4a79ca2a1e2e1d8b
Signature (Ed25519, base64): M29dDgbx/5epS2/zZF1l1jacgsjcQpOFSWR5ILAxlC1+JcR6+p74ysmx73djm122R/P6duz9AlD8Feqaxs3TCQ==
Merkle root: 4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path: ["37bbe7790af7a9e83b0cf49a83ff7a465f40dd56a8e103d0b4a0dccbaff770f3","9ea29ae3540577542642633eb3d4013fb27f1147fb61e943436d1ba8306afeb1","a6e8831e7176882eeda8180d24e8454474af9487c97424bbc5334390897679cc","08575e27eb2c72c9b51cbc9a719ba6550b7ee7ed8acf286eee0c8ca3191632a7","773907ec14979df5f4030da7e0eb6d02be7fa6c4d52b2aae81198cc1c2a0d8b7","a1181698df64f3bfc8b647c19051ee654a4a7a726616344c7d035afb88c7b392","1272cd75bc1e94da794784e24e9cbd9e7c8f8290615113a8cdfc3c864c8628fe","bba53caad2393b8cad68c7a4c0b4d987c3afd12e38d598e8263132ca3ff45e70","48132b96f468266cd08b29df2fd83e94cf6c518eba03682e1d7077c038f4e798","37f32bab5c12d31c2756572ec7a21dcd8c34d3d9ef114444085bf788d93dbb0a","4077d45f7e9b4c595bfe3585b1dc6afb588f7ae2c6ada74452a93c7e85829009","71deffdc3e60d0983d04bac22af47799e28ca987643ad6dda198476b887a69da","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash: 52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"the tax advisor fees are way too high","rating":2,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (4591ccf5fcdb…), 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.