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 also use both the electronic signature and my real signature.”

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 3029042635

Proof data

Record hash (SHA-256)

1512d5cd81c88d6f03fe4ac623df17588f4631ef0a9ef2d45ba319cbd1308456

Signature (Ed25519, base64)

Zu/K+fiUm1Awya2pRCCkvGwDkIUvggPeRIk13Nr8tCm/hVl+iQly5e/xd/qyBv6eF49UwlgmpCnVtGfRAYGJAA==

Merkle root

c9e6077a1bda893f1455402f424b1d526c8cf2f47d428b611fd8d7fd8b45f80d

Merkle path

["150c668b9d90d689159d4b4f958f4046d542dbfedd5f96adca2c7fb36703990e","1dad38c505508f9abeebb9379e2038302932e68b571e9c0a7d5734f446c624fe","aa2871c45f41e0a33f41a73aac3d451b38648a0874fb6092f0abd8583fb53083","f21bba41150a5d475fdf137ebde01732a2ee09d788989990c303898d799f05db","be94dd409b98d814c68c3d35f608259ffb3b3c687b45424f8ce5d59747f1cffb","ace161c9ef8689954bb930be96a6a84011372b881b154b37be965bd76f51d145","9acc834410a64672283513cf72b0d9f2b24de1fb858db7203e6181eb3e9610c9","d1dc637c1782d44d6feb27da8bf303fc564eda626c062e0c3caaca1949890a55","700ccce7ea96a27ecd3ced104eb8505e90663ccc42cc8507f6fabb1a9e4b44fe","6ef43a48479ac438fc3f6259737be26d234fbc11b09e6de4dae0ae0e0cba2a86","e999c55fd18fb69cbe72ee0fb38e48d0e6820d403edd01dd2efe11336c6be892","f42bbe0786e33b42f4c8e554d8fb87eea60bf6b63c64884d72dc9140ccdbe62a","10184685e176b75ed3f0b74f1c9530fc854fdb5cae5575a2bfff0aaff1cb819d","28f339129afb618d498bd82eae2b1e12eeaec1028ad92bd9db24bb82ce8352e8","5322c97ccb72daa49a07d25ff9fa0bd42fe425058f30f6fb1f272a0b90ad3b60"]

Anchored

2026-10-01

Public log entry

search.sigstore.dev, log index 3029042635 · entry 108e9186e8c5677a4403…

Expected log hash

38d9b7e95b1b3c998a8128983d818774fe7ee047adb6f05ee608495c2d7aa418 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":"v1790741815621","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"I also use both the electronic signature and my real signature.","rating":5,"review_date":"2026-07-24","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 (c9e6077a1bda…), 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.