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.

“Can't edit texts on an pdf.”
Google Play · 1/5 · 2025-04-25

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 3665856061

Proof data

Record hash (SHA-256): 03ce5c99b93f52726551f9eede106dd05c899b5f60757de7a023fd3213d6df2c
Signature (Ed25519, base64): qIIo4fK5IvyZe9eB8RNUEdX/+UhbvHsEijMWsUkQPuQcHzno0IXu9zyocydGp1rutC257sGmCK5Is7LcUD/cBg==
Merkle root: 30e6dec0d0882018a3e7bccf18a3222b7daad8045915eee7523618b7cf75b77e
Merkle path: ["03d572a0e001fe8d0af4b2fe8400e5efe8b348a51a7577dd425342d7c13d3f5d","b969948cecd3b5ebb2dd6dcfd8cea0e7836782790befacadcf41524a53914265","a236b0c155d916147a7d25b30d03fb3cb86d289d16f911a4b8204854012281ae","3d129cf8979bac2c8c970d435ff83fdd5639b3c944626e074e94c9ec2deec932","fb9bd606a2b978fe9a487f9625cb338faef4de709c55224ff7dcb1ec758f65d0","8ec32cf5e1d6daef86a2f03e29b31bc22410138a27b5062fec11f054d321192f","d24ce2b12aaa2a21adc1804f68f6e282d07c4aa940aeb4705dae71fe2e3fe878","39fe1b7065ef3daea9aefac063258ba5adbafd68a79fadafb26569c46c6ff5f2","36d413b024033cd6e1dac3be3c5742dfc0152cf15096b69b483ded4c7c2d8d98","5118ccf7e815cde83a7a81251633fabe8fd16f8c5ab105e15b1895a648804182","7fd72173f45524d175f6c633973e8c30e8df12f70bff21bf410e7b33944e0ead","912fcc514d19cd9cbe0a1b4ab754d197504acd67486645ee4aa172fb248dca00","46692bc80fe953f4d8d52179b535334176c04357301aae92a75d811dbddb72b7"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3665856061 · entry 108e9186e8c5677a72e2…
Expected log hash: ffc1bb1abaed68d6145f4de3e9055a9ceb42d7f5a099d941c361cb153635fb0e 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":"v1793699634728","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Can't edit texts on an pdf.","rating":1,"review_date":"2025-04-25","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 (30e6dec0d088…), 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.