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.

“I can not edit the size of the textbox.”

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 3240911465

Proof data

Record hash (SHA-256)

0ed9e17eaf04cb07e4d39232e893619008b973b075ff80cd66da002b8334ba80

Signature (Ed25519, base64)

rwlZuYRUPNBe1zxFikapZxh8NtLaXfqq7mMGlL+25wA0LOBzbAR4212G1riKjNY/+5GDQPgRkLsJZMF7FpqJCw==

Merkle root

274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a

Merkle path

["0edb01ac3544604f538c77b93da871808813aa3897aca611934ee6041d1d50bf","a16f761bd5108ec6a9a93866529bd87e6af5d673ee6088c70e976aae75b7c64d","8c782105fc7574a507ff41d6997f412f97cb79a9a48c1907859411cda8e3b10c","f5c75deab7524b3de1f1bd8c04a7c33c8a137f6aad19fdefd3d565504e0113db","4011d7b48d77380576ec50cb8458f5464b665fc0750fb9a2611cef202ecc793e","2115193ef6db962bcae5d2bf7858a7124c1ac2d9c6bb326e0fb02cb869c19b73","8f255d82746d0c7a181d5c753ec86a5e1b2227acd30799f9338f726584120ac8","7be298b4a971153ae4bb95f44e16670e2fccbd84ad5f0f893665d73247164216","a236dc966575c41797036ebb63b5b8f19b95b6d75205612dbe79d55927697a27","fb03c31cd067fe9716c1219d8fd99ce6a51973e6971c08ca69a0b759279055a1","e7ab74a9aede1a4e45c46b0cf42345a6025189eb59192d0ab58a70c0f1fc9ee3","a23f8c34fe7234d1604529397f0f25595125771d2c3bf2e0ea04339b7ae798ca","37e0bacf6aea102741ccf02dcd42b0de6a02c60397ad417aaaf9cff69daaf006","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…

Expected log hash

75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"I can not edit the size of the textbox.","rating":1,"review_date":"2026-06-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (274a7762154b…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.