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.

“securely and through a server nestled safely in Europe somewhere”
Google Play · 5/5 · 2025-06-11

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 2789279696

Proof data

Record hash (SHA-256): d11c33a35b9bcf9c76f1437fa67aecfacde065ca2f5f1fb4bf7e621bb7710e60
Signature (Ed25519, base64): Jy3qX2EiuoUHl6PrLj004GDzxnrZMpJ0SwW/Yy4PPP9/Xy4c3T79hCaQDrlrNLTdaFadK2cE/7bDuSF+46mNBg==
Merkle root: 97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d
Merkle path: ["d121ccec9c16a72dbb9820d43292b71a1d8925f5849713bf4dd82101fb3aed1a","2756b8851fedad7c5e122504b7eb2f9deea0d6722fa6d354c8e82e3b2f6f6e4e","d7b9484e707f0eadcd848e14a6675721f2c208d90ca8ef597adc1a1ec93304d2","1e0fc21f6fe23368bd8fc0a3e9386a671e052fe8f4b239dd0836ee959a72abdf","388cee5b508a05829d8502ae52e8e252e96090196d085e6b343704ddcce40cef","99b3095e93cb8506f69069c3e71c9ea107e0b477c474d0903177a88086c834ae","8572206817578cab3e53a68ef16f09c4c6e311fc2ebfff30ce7401e452f94ca1","471bd971a3aedd84c1fbeade25b2e5e0125acbd26f35c1c025c1b58782b2f56f","ad6d03c4af89ffb005f1b371589d7f68ec44839d3a8069ee8db33fc7fb566978","b4ff52143d4288adbfc526dd0808642308a9cdcd3a0302b261f001245955bf74","aa7b928bd16720157d334bc98b7e5ebd98d6cf216ff9136e6ccd291dc6661148","c0cc50f924fcd6f909769461f841119392c2e50ee0690447644c3ed97414e04f","6a087565eaa0768d4c576fd78f88585a902d61259a245be7f47bc24b1ead4c18","fb01c9b29e184d558c43a512ba05af475ec20eceeace4dde365559da92299892","46bcfbc656e0e2a380a8a94cdc0be3d8b4c668e5f9e54a10ba396a45b371339b"]
Anchored: 2026-09-11
Public log entry: search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…
Expected log hash: 05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/delivery/en","quote":"securely and through a server nestled safely in Europe somewhere","rating":5,"review_date":"2025-06-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (97eb1062a862…), 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.