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.

“with O365 i can open PDF files and convert it back to text”

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 2514013184

Proof data

Record hash (SHA-256)

5b607adb20226314bc6e06f9e3f13f2fde466c0a36a1d7b2388b947f66310d6d

Signature (Ed25519, base64)

1c0squ2Dv0TxOr5ODN7QlyCBpudQiu17UiCyXYNjdTDO/zvOpYk5SvMZjJJkp9ErDYiprPr1kGGBcky6QAEKCg==

Merkle root

677e672fa444dfe5152ab91687c577772e13723ca441b5c8063508daedacfe44

Merkle path

["5b5cca0c5dc90fe63915b90fd04c41376a3224ff5a970ca39cd2f9dd627fd0d8","3668b7cc5271d2ca345a44e3f725121b73d4f79a6f109884ba81231465e0cbcf","38ed6d39c3176e90741eede5e63ee9c92e02ed980156d3bedd8b0efc25241d26","d19cbfd2c14677cfa02d7897950bbd089cdcba47f42b29422f3eccab3bce8e22","7fd044c549146b21bf4c7f7dbf8249697a27f5b082990899a29c2de8dc2bd675","f23e92fe01e40e43d81680c8919f01b685e74b5fa33f3a6e9b0ab9c605673360","d03e96ccc52a856e5ac92f33513eeaaa11395c0c4a61d299bb929fac8e21e89d","8ebaca93745686d6a773571b909a3d0d8644052d5d4e388124f79335c3550da1","959913af61bfedf6f92c958f46b835a3203fd4df2d2cad6d87cfc65162fb357d","16eaf94d8776093fa00e1313f9c3e88f6100478eb2b0707785de0ce31926a39b","60a7784cbc91dab9ef64f13ea3efb0b7d58884c2a949cafb01c0ef3eec198773","6d0314f31c38e934968ee8dac764e4849575f56bca662e0e3aed0a15797b4dc0","1b074434db9f65ac83f955b267ab98f99350feb9751fde25d350ed3bb4cdde81","4160c2bd6ca5556fcece7b88bcddb2c951ca86b46a4df6829fdfab8c09bafb4a","188420cfe03d9830600dc87f84622c41659cea53d9b8db8954bfc926ce1d4dac"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514013184 · entry 108e9186e8c5677a6b00…

Expected log hash

a596e5a342226b61371cdf76b5c8be8e37a3d00e7ffe8f7b0b550e1a8d1459dd 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":"v1787122978040","kind":"published-quote","locale":"en","page":"product:acrobat/convert-pdf/en","quote":"with O365 i can open PDF files and convert it back to text","rating":5,"review_date":"2026-06-02","source":"Capterra","source_url":"https://www.capterra.com/p/251329/Adobe-Acrobat-DC/reviews/","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 (677e672fa444…), 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.