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.

“For one thing, this is the calendar, not the email.”

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)

c11f65ccbca3a396f94b340cb78d719ff3ccdacba1747c16a2503976b73db111

Signature (Ed25519, base64)

dJ4qpMVmp8jas7PucUl/9il3kR2AJmbLuXle5oMcOmDBdShu9nv50qDpiBvSF7AYHE6Hk3xyP1erEv6cI7asBw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["c124a5fa1ac31d82e9ded3d76777e81826f3a82dcea6579165e0bf53f2ed5ffd","b4e033b787c8a7c408be095254836d2ce118a5206fcf9918cd9aa7e0fac6ff5f","b9797f17d72877541c41f7f2d3cff4c7fa37b0499f778a3057e062c8d9c0d289","8c1c5fb22a792d1300e0b59376f7c00a35e5ab310b1da302d99d435745b4282a","a4769ba976b42ab12b79654edb5cbad433480c78a4804e4285d96ae6b5589a4f","a103efee9ca39fddf0f8d481d1e02e481aa68ee8591682f31e3e3080532c499d","42808f467549679ab13a809bb09595781c19997bcd5880d31d098c4978e964e8","54881fbf30be0dcd79d36f751c7f4d2434c0eff302358563fde46e8267aa92bb","6337be8c90524b248f6bac5c8527282ef703a1316bfd9c89bcca13c9be603130","cdb3f453a6244369daa2254be47f1d6eb74ba492517b82b267dd20a65865857a","5c03cf30ba6afc005d746c278f2b17211a526993a50ab9c5340f95b65203669b","754ce755e6ee05c3f3abf3d61f526c095312c78b178503de17a63bff0979655f","054c6c39d1f97397366b9a1b659a373f0607ed1b3f28fe998d444aa71461fa00","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/communication/en","quote":"For one thing, this is the calendar, not the email.","rating":1,"review_date":"2026-07-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (97eb1062a862…), 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.