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.

“all my files are too large for this app”
Google Play · 1/5 · 2026-07-12

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 2515345787

Proof data

Record hash (SHA-256): 6a62a943008c8b83fa1d32023c27e19d01ca69b5c09645b1e7386b45a58f0eb1
Signature (Ed25519, base64): z5D6EYI4BuQgsBaBgvW3PAk+LeT/CJRGNh0XBCvKM+tW4pmonPhC74FOXmr1zRClEDG0NGb6TdpDvwaFht1VDg==
Merkle root: e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465
Merkle path: ["6a5f95bc58ba497eafe9266cfe16b79b15af1c9812fe48aa312ad37c4607895d","d5daff1042c877bb0837b47a14af35ed645fd50e5aaf84f03da2ae4e8c56b237","ed425dad1eddcaac54d6bdc640577563c4c92ed40f975635fc54553a82b3067f","c1e064e616a8eb4210661a8be28a1d30f7eed877eb04ab211632ea1e3d463915","0151085fce1c7a2524060b683a8e99ea6498a7fb47f470bc083a9f09d29a2a01","8bb71c351113c175741c5b1a4a0ac65fd2dfdab24ef4c5d84a07add2e2282e90","b8bce3fb9416d5ef83079a9fe5eaed6a19be93cf6079fa204b9af90737f7a5c5","4a74528ee06ddfbd6d895c87abf8718bafe2f8a340d14e2208ba30867b801f68","c961d170f1f8dd20fd638220c92ccb2bd8c01a5e0d9de787fe5e090adf3218d3","acd44f9325257199dfbf0c12dec974bc484d6b8140aefbcf62942d4a31dafcc1","10f45470031536fc8a54f3b7e678c1fd29f39413ed74b889aaa6ceb20acdf2e6","d6a60e2106352e5dc4a29403d9d5c2ba3b108dc5f0ffc3f9ff74c9776290fc3e","7f1d0c445bb13ae8c90e977abd9f4b017f1736dd8a0b6837e8297de8e292d186","f1950e4af29dd22cc94bc58ead6e376c41b02edc9ab0ebaff7fa6fa0f9bd3732","11a62e67a9d98d919358ca5b8855f911ccdc865f14b203213de31adc67657443"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…
Expected log hash: d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd 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":"v1787140356347","kind":"published-quote","locale":"en","page":"product:smallpdf/translate-pdf/en","quote":"all my files are too large for this app","rating":1,"review_date":"2026-07-12","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 (e61c2598d4d0…), 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.