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 would like to commend [sensitive content hidden] for helping me out quickly”

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 2514188040

Proof data

Record hash (SHA-256)

51ebf39fb9f4317bfcd651b9037480d51e34f1fb94f8cd35c02aaaf3deb0593e

Signature (Ed25519, base64)

PrIrmPGbLVaBYO+s+Vu4nEIuQtzL4yv8Lbsd2AUicl/0Da4J7RPxShH/L2M08ihF0aBCnkEFZViCP+kGk+7tBw==

Merkle root

6189a42bfe294c4034f316d047a716a5efecb511b8dbe64c4f7f543872c9bcee

Merkle path

["51ecf7993e0e7f09aedb88accfb3757041801897579b07b9fea7fae245a4053c","44916652ffbe763464e641dfdd745dc2aed4b269b34c8a8f2bf8984a4e2f3ce1","7db049e0cd8b62bf5c93877fb2860e62481a0c9cd67e3fd123113ef6ac8255ef","737879571c54718dcb6c1478f28f0ed3e86a1f9d8add1789cbe1ebfa1484907b","76f474e8692f74f1ea7bb2111595c289ff89940152115456c8693d84eadad7ab","7126b6a3fe69484db9f6203034294d453423f29660bd6bd75f33a5711c343edd","951c39e2f6f00c704cf4fcf9e7e57a6a5519dfb7d83d40ff20dbfc43f146538e","1e7bec8b395ad02bca58ecd78cd9a48d55ec2fca3e1b271d772f50dfb85970ff","9b2968e99024252a49313a85ecec8a50bb85d6d7339c110bea0924ee953e6f07","3a12c0e8d5633b1eed27147bd1f1774b305005f67009e053322a0272f92cc733","bf0504ec9f9732d4cf24edfa382ac85d0fc1dddbf1d1c60b4b6a960763d7cad9","f0126cad3e08b09b369afb9794b28b6cf8e526bcbdc25738f6f73f2a28a820f5","54715b684a7aa1790a643866cf5843a2432dcdea9093898d94c331b19a70418e","f786ac0debae9f349ddff34e280cc8a64ab579a73e0a3d3745d84df0612234b6","e36acd56aebd26af88e4e41e8d5bc2a1389f049dd914bc2c3da8d68ac2fede4b"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514188040 · entry 108e9186e8c5677ac9bd…

Expected log hash

b0fc1d11450dfeabf778635bd8a8264987fbb7e682331541ce1f5d7507d4e862 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":"v1787125125654","kind":"published-quote","locale":"de","page":"product:smallpdf/translate-pdf/de","quote":"I would like to commend [sensitive content hidden] for helping me out quickly","rating":5,"review_date":"2026-04-09","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (6189a42bfe29…), 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.