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.

“Maybe a bit improvement on the signature part”
Software Advice · 5/5 · 2026-02-01

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 2514341362

Proof data

Record hash (SHA-256): 0eb1a1a42da9f8e83872c9710da019fea362aaf222986c2dd60a957a84856e6b
Signature (Ed25519, base64): eLUxd26vaE9t5Szv2Y3LCgHTjVew2f8yVWgduMQffUAqlI2LIGzSrdA19wUkV1HwA0e1fbyt25RLOVQwwfiwDA==
Merkle root: 2cd516e344e4be63e12361494ae610d89d15708131c24034ae0c7b134b8bcc53
Merkle path: ["0eb6bf8411c814700e85e0ab5ba7623d9348a823dbd8e37ee86f6de71b7eb92e","3b2c3712396a92a58951d554c257d51cf0be6cc96d8ee8b99005b2a985f0bb3a","126aae0e3cfb734c0ec1f340a7894c5cd92e8e8ee5acae06b2c7417d94e2053b","7dd1d0c10fb53bb0fa980d076dcfe256ab7c163075eefdcd21173fbbf5f5b0da","b860afe00ccc60c6754d2c2de7611b0d8a4a7fb76d04d84659c1bd64e39ea1aa","d0abe5cf6cd405560c73dc9adcacb8e8e95de92e4d60feab2354a759a2f06f6f","1cddcb70b99de088aaace7ac8dde61da66a922ff5a3d175d1f4e31a2d5bcb8f6","8d280d606bdb42dd07cac4c62d69787abc879ba902237a76a886001a312b4dd0","31751cbbdb2ea295fc156f6f7b14bb37594e941ccb12680d6cc2419491c33bb6","60f0901969a19f7219e7f13211b55135c37e73d941b4e23e65391f8e3e481ccc","fc5e6893b7b093aaab9f0c6ea5f20f8f19fab2b6af0a418d03e3ed0570fec6a7","11851d586c9f38a56ab982eb8cd3943e06cb4a5d762921d94ddb141fbb64e148","ce748a4ea17609932077a2ddf349ddc25b0aac234841b63b72566db9472e9268","223b4ba84a44374ab9643cd0f0caf0fb6697417054944b56228a22297574df64","22334ce08b4f33f031252a9b7a089423436312a37092b6e742f7471c7ed075e3"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514341362 · entry 108e9186e8c5677a67a1…
Expected log hash: 81a850cd5c32c6b6ee86a2774571659cf829f205adaa17a6b9e9a6f5bef7642d 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":"v1787126744998","kind":"published-quote","locale":"en","page":"product:smallpdf/sign-pdf/en","quote":"Maybe a bit improvement on the signature part","rating":5,"review_date":"2026-02-01","source":"Software Advice","source_url":"https://www.softwareadvice.com/cms/smallpdf-profile/reviews/","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 (2cd516e344e4…), 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.