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.

“such great app I was able to compress my big CV 🎉”
Google Play · 5/5 · 2026-06-21

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 2593655674

Proof data

Record hash (SHA-256): 0c5f8e317a550c225e322c4ad142e5abfb75fc15da1c332bb0ae45aeb020298a
Signature (Ed25519, base64): ylG05ZQPJJnakffwwgkxhkDNOjN4KZAbeC1st4HJP7HrLo395Hlaq2EadysbYzwSKKBKOrIwbNy8PFv+EGSXCQ==
Merkle root: c62de506c31e1551783494d165965503c3e555ed9c56fc9a8ea54e7f423e7596
Merkle path: ["0c60831f2de71c20a4caa1409fa9625b0512a68af999331e5b4aea4cb8daa665","5623efb4b9444be6ceb6745bf8d4f174cafa9d5e9c1ec1978a507ab0ed7c5821","f360c3c3577c2ed1f8bd93de80df93d084dba56972813bff3f81081f7feb010d","aff9c897f2788df5dc81ef1faf7a401b8b5a77372b251395198d49a1f57335e5","4b86ed3d50cf76dfa14d8d2a4c8262b89626bc8c735cfb663342d858f59d7e90","748aab5dd0c72e44fe9a0ee22a5c5c6e7b91e6de7e21a468e0e7f38effa62bb9","7d5d7236b598bc4ba8d6c7cfb37d94deb2983420225688000037c38bfc8a8aec","ca9f45bbfd93aed0f557938e7bb477dd713fd45b1d6261875e357f78f04e1e48","2c31dfb72249a05a57a59b27af83d0139e09d17889be4c3673f63584da4f409d","182946edd1496cf0937b5c609b25c9b86272ae1ff3407f8acbc98f2827faa9c3","3beb9e2419791c5f4003f107b8df3f9b8cf220c2cf0d95e0ea1059ea797c67bb","b6589eb019b8ec6f8ea7185a580a7050e41156727907c947ee3b1e0b10499acc","db5340fb2ee7032cf2ca3974766493186bad902d95690478526151b5708df380","4062e3741ff43f0051f244365acefd9f0704d953d0107616d7f339f1c0341e11","4bae54408dd517469b74bba599857056a81c7afc659bba4587745154292d4af2"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2593655674 · entry 108e9186e8c5677ab61a…
Expected log hash: 40a4bfc261f324e812428cf4f8faff6ae237bc17c25df830e6e4b8788ce99728 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":"v1787710495154","kind":"published-quote","locale":"en","page":"product:smallpdf/compress-pdf/en","quote":"such great app I was able to compress my big CV 🎉","rating":5,"review_date":"2026-06-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (c62de506c31e…), 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.