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's a scam!”
Google Play · 1/5 · 2026-04-01

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 2658211220

Proof data

Record hash (SHA-256): 09c11cb248fe9e82b27f0730c40dab8a91a24b1cd8f3bebe72e922648461b536
Signature (Ed25519, base64): kRxb60dj5bqRLo6jcfQCUGyGIlkiP6JOP2rsuxDw0NeJfssq4KCdQuAQCcE+o2yvmR9SiLWQ5GTU7+AjWC8xDQ==
Merkle root: dc262458aa22478fffe21ec338d01c6f4cae4a788ed9fea3c30831a82c06da82
Merkle path: ["09c2264eecd32e5797dbc2926ef9738f2abb4c7b9598e366dc950752cb58734e","6432c69630375e27d12f81bc76eee916fc502a1aa0c378107a891888d02ef781","a5596979b620b5651fc6b7cae03149dc1588f93dc4dd079f0585b728bccb44bd","d670722a12b28b95e9fca032dd45e2b760e06ad5d16eb470eb033c04faa1c2b7","f9f1d109a4a849f39a599992d282939eec3b760c7a90ef36b8299245438cfb78","cf66eb7b26dde5c6e9443f09702db2d5bad4d687ce9a7d8371b8d874da2ab354","52bb8dbb56f11c501eaf34c37ec06810b1d64d85b48066b0d297835ef94c41e1","420f16e325b0a3d94fc6c68acd7468941152fbe0ac914a9f472d3ca3b7cf34f3","70a0a60de0a59d6cc7ce84df45f45e706c0a247c507662b760c28c77cab3936a","e451063a6681ce9fa7b699c63a40569358f3f68c67456de8af6e7e37eedcf509","263a5db8f7e34b426267043379c0096bfbd08f4226072627615e1eb1ecea704c","109feb850a277e0b490ee3c60767eb9380b9740ce327bee7637be3a60c0cd37c","bdc9b750f877995745e1cab86bfadadf81a699dc296c03b30c7a277ddce4ad9f","05b68ff1f996fd6d87089c04d3b63d00c2f9717b69cfa4ae5a0251e3fbd668f9","fa0b5c0e2afc2db7f6b3a78d277777500a36d9f343119b2becbe97376b611a16"]
Anchored: 2026-08-31
Public log entry: search.sigstore.dev, log index 2658211220 · entry 108e9186e8c5677a6833…
Expected log hash: 34743b52c53937c552d8f13f390474d4daf1803bc63770b1d5dba985fa233896 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":"v1788149612113","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"It's a scam!","rating":1,"review_date":"2026-04-01","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 (dc262458aa22…), 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.