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 use the storage for useful access across several devices”

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)

678d93fbbabc407a636efdc879d3521bc82c92c1ad29c205f70d6c9599729d90

Signature (Ed25519, base64)

6Nr6t2WCuw68TaoCQq4fBUWLv7xFaZMOe2ZuJMS1qpsxXl+JtyZtL6aaIqP9x3rdU+HHtnADVZexMUrSLYhIBw==

Merkle root

6189a42bfe294c4034f316d047a716a5efecb511b8dbe64c4f7f543872c9bcee

Merkle path

["6795e5decaf9c97b730e3e6b3072f2c0bbe55e3b160788dbf7f3cf4aba1be67e","999e6b5e2aa899d9319187f523523483bbe5825d123e6c3fc6171cbc70ef8528","488c16b6407dee87a210d6e718d8903fa38775ef61a02767c2e1137671df1ac2","634855384f35f1bc166283cd5d514de2a468c9a217dc82f4ec3b995d51ea44f9","3e7c498194c5a1a7381102c54f4b8b93030a228d931c297e60d889fbdd4f23b1","8ca6cd4d197b0d5ce0d31515b6b36f58f2be6f2c6fa575d4aef9c2da577a3baf","a9b818853461169a46c634da2eb1cf863e71bb9be71a2a52600994d24786101b","c81b5f3fc01d360972bb48b3b5a23c76f7ab61ef6238658d8add3b2d4fcb39b2","8d6e157054ce1360eb53ebbe7e6eb5e29e3448c02f18700c2ef465c3168b3941","ea91c22bf5b7cef9e1b26f3c8dcf6288b3220c3e505917baf87d46b59d9a542c","c52fd4024e958de2e8dd4459e9bea3f11ab289d15937e14245a634b71c960945","fe7f476da297d61cdab645b6310135c63fe8408e5adebc82290280e55618d546","c8bdb6f44b6fa1ffbc76cbd7bb8bbcec4d6cde88e65e58d7ec446a36de9d7be9","67223d7a85c1115e9dde948af20504ca3bc62c9ea97637792b53682f25f6d8d4","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":"en","page":"product:acrobat/pdf-editor/en","quote":"I use the storage for useful access across several devices","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (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.